Page 1 MAESTRO USER GUIDE SmartSDR Version 3.7.3 February 19, 2024 Copyright 2024 FlexRadio, Inc. All Rights Reserved. FlexRadio is a registered trademark and SmartSDR is a trademark of FlexRadio, Inc.. All other brands or names are trademarks of their respective owners.
Page 2: Table Of Contents
Maestro “A” and “B” Mic 2 Connection ..............19 4.4.8 Maestro “A” and “B” Mic 1 Connection ..............20 4.4.9 4.4.10 Maestro “A” and “B” Line In Connection .............. 20 4.4.11 Ethernet Connection....................21 Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 3 What you Cannot Do in SmartControl ..............52 10 Maestro Overview ......................... 53 10.1 Theory of Operation ....................53 10.2 Key System Components.................... 53 10.2.1 Spectral Capture Unit (SCU) .................. 53 Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 4 Automatic Notch Filter (ANF) ................... 70 16 How to Use Profiles ......................71 16.1 MIC Profiles ....................... 71 16.2 Transmit Profiles ......................72 16.3 Global Profiles ......................73 16.4 Saving and Deleting Profiles ..................73 Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 5 How to Configure the Audio Controls for Phone Modes ........... 94 20.4.1 Setting the Transmit Filter Bandwidth ..............94 20.4.2 Operating the Speech Processor................95 20.4.3 How to Configure the Equalizer (EQ) ..............96 20.4.4 How to Configure VOX ..................96 Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 6 Transmitting on a Transverter .................. 125 27.5 Weak Signal Considerations ..................125 28 Using the FlexRadio Power genius XL Amplifier .............. 126 29 How to Connect an External Amplifier ................128 Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 7 TX Band Settings Tab ....................155 33.9 Phone/CW Tab ......................157 33.9.1 Straight Key and Paddles ......... Error! Bookmark not defined. 33.10 XVTR Tab ........................ 159 33.11 Profiles Tab....................... 159 33.12 Memory Tab ......................159 Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 8 Slice Receiver Bandwidth Knobs ................182 36.5 Transmitter Knobs and Buttons ................183 36.6 TX Menu........................184 36.6.1 Audio Modes Transmitter Menu ................184 36.6.2 CW Mode Transmitter Control Panel ..............186 36.7 Function Buttons....................... 187 Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 9 41 Copyright Information ......................197 41.1 User Guide Copyright ....................197 41.2 Software Copyrights ....................197 42 Software Licence Agreements .................... 198 42.1 FlexRadio Software License ..................198 42.2 GPL Information....................... 208 viii Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 10: How To Request Technical Support And Assistance
SmartSDR and the FLEX-6000. If you need assistance using the Community, please refer to Community Message Board for additional information. If you are unable to find an existing answer to your issue via the Community, please contact FlexRadio Technical Support by opening a HelpDesk support ticket online.
Page 11: Key Contacts
4616 W. Howard Lane, Suite 8-860 Austin, TX 78728 U.S.A. Phone: +1 (512) 535-4713 Email: sales@flexradio.com HelpDesk: https://helpdesk.flexradio.com User-Provided Support: https://community.flexradio.com Outside of the USA Please contact your local distributor. https://www.flexradio.com/about/distributors/ Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 12: Getting To Know Your Maestro
The power button for the Maestro “A” is located on the top of the left-hand side of the chassis. They are also identified by the third set of numbers in the serial number as being 0100. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 13: Front Panel Controls
15. Slice Receiver B transmitter enable button 16. A>B button 17. Slice Receiver A RIT/XIT indicator 18. Slice Receiver A tuning knob, menu / clear control 19. Slice Receiver B tuning knob, menu / clear control Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 14: Rear Panel Connectors
3. Battery Compartment Release tab 9. Microphone and Headphone 4. Battery Compartment socket 5. Morse key socket 10. External power port 6. Powered speakers socket 11. Tilt leg mounting points 12. Fixed leg mounting points Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 15: Maestro "A" And "B" Rear Panel Layout
6. Physical security point 7. Morse key socket 8. Powered speakers socket 9. Line Out socket 10. Headphones socket 11. Push-To-Talk socket 12. Microphone 2 socket 13. Line In socket 14. Microphone 1 socket Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 16: Setting Up Your Maestro
Note: Maestro “A” models must be connected to DC power for 15 to 30 minutes every 4 to 6 weeks of non-use to ensure that the internal display battery does not completely discharge. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 17: Battery Packs And Banks
Refer to the battery pack safety precautions as to its use and charging cautions included with your battery shipment and provided by the manufacturer. These documents can be found here: https://www.rrc-ps.com/fileadmin/Dokumente/Shipment/SDS_RRC_Batteries_N_2022-11-16.pdf Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 18: Battery Pack Installation For The Maestro "C
This section details the battery pack installation steps: 1. Depress the latch and remove the battery compartment cover plate. 2. Orient the battery pack in the Maestro “C” as shown below. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 19 3. Slide battery pack into place so connectors make contact. 4. Hold down until the battery latches into place as shown below. 5. Replace the battery cover and secure it as shown below. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 20: Battery Pack Operating Instructions For The Maestro "C
The RRC2054-2 battery pack has a graphical charge level indicator located on the front right-hand side. Pressing the circle at the bottom of the battery graphic will momentarily show the battery charge level in five (5) steps as shown below. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 21: Usb Power Banks For Maestro "A" And "B
Supplemental batteries used for charging cellular phones and other electronics are plentiful and relatively inexpensive. The capacity and functionality of these batteries vary across manufacturers and models. FlexRadio has found that it is not uncommon for the advertised capacities to vary from actual measured capacities.
Page 22 In summary, not all battery banks will function the same in Maestro “A or “B”, and batteries age and fail over time. For best results, check the FlexRadio Community for recommendations on batteries from FlexRadio employees and other FlexRadio owners. Good batteries should provide reliable operation over many charge/discharge cycles.
Page 23: Usb Power Bank Installation For The Maestro "A" And "B
This section details the installation steps: The door to the battery compartment is located in the middle of the back panel of the Maestro. Depress the latch and open the battery compartment. Remove the door. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 24 FLEX-6000 Signature Series – Maestro User Guide Insert a battery of a suitable size. Secure the battery using the self-adhesive straps. Make the battery power connection with the USB Type A plug to the battery drain connector. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 25: Network Interface
Connect button. You may be required to enter a password to access the network. o The Maestro “C” is compatible with WiFi6 (802.11ax) and below. o The Maestro “A” and “B” are compatible with WiFi5 (802.11n) and below. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 26: Input Devices
Maestro. Connect the key to the Tip and Sleeve, and leave the Ring unconnected. When connecting a CW paddle and using the internal electronic keyer, connect the Dot to the Tip, the Dash to the Ring, and the paddle common to the Sleeve. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 27: Powered Speaker Connection
Recommended ratings for headphones are 25mW into a 16-ohm load or 13mW into a 32-ohm load. CAUTION: Do not use a mono (TS) plug as this will short-circuit the right channel signal to the ground. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 28: Ptt Connection
A software-enabled 2.5V bias voltage may be applied to the Mic (+) line for electret microphones. CAUTION: Failure to enable bias on some consumer electret microphones may cause the PTT line to be asserted and key the transmitter. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 29: Maestro "A" And "B" Mic 1 Connection
Although Maestro will work well with many types of microphones, it is wired for the convenient use of microphones such as the FlexRadio FMH-3-RJ45. The FHM-3-8P hand microphone supplied with the FLEX-6000 Series Radios uses an 8-pin Foster connector. This microphone may be adapted to Maestro with either the ACC-ADM817 RJ45 to 8-pin Male Foster Adapter cable or the ACC-CLV-310 RJ45 to RJ45 coiled cable replacement.
Page 30: Ethernet Connection
Note: Only use external power supplies provided by FlexRadio. Using a power supply with the incorrect voltage or polarity may result in certain features not working correctly and can damage the Maestro, voiding the warranty.
Page 31: Maestro "A" And "B" 10-15 Vdc Coaxial Power Connection
WiFi connection, it displays the Choose a WiFi Network screen. Maestro supports WPA/WPA2 WiFi security and can also connect to open (unsecured) WiFi networks, but does not support WEP-secured WiFi networks. Wireless Protected Setup (WPS) is not supported. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 32 Select a network by tapping on it, then tapping the Connect button. If the network requires a password to complete a connection, you will be shown the Enter WiFi Password screen. Enter the password using the software keyboard provided on the screen, then tap Connect. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 33 Subsequent Maestro startups will not connect to that WiFi network until it is manually selected by the user. Tapping the Advanced button opens a screen that is used to configure details of the Maestro WiFi and wired Ethernet connections. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 34: Network Status
The icon provides status information about a wired Ethernet connection, a wireless WiFi connection, and the Maestro server (which provides Maestro software for installation). Tap the icon to display text that provides more information. Some examples of the network status icon follow: Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 36: Multiflex
FlexRadio ecosystem that each needs their definitions. These definitions are given assuming a single radio with two operators connected to the same radio at the same time.
Page 37 20M If Station 2 presses the MOX button (non-hardware PTT), then the radio will transmit on 40M To set the Local PTT, use the multiFLEX Dashboard (see section 33.15, multiFlex Tab). Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 39 To connect to a radio that is in use by another client, select the radio by tapping it. A Disconnect User button will appear to the right of the Connect button. Tap this button to disconnect the other client. The radio will then be available for use. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 40: How To Select Maestro And Radio Software
Once the installation process has started you will see a progress bar showing the approximate completion status. Firmware updates are usually complete in a few minutes. If a progress bar goes Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 41: Licensing Smartsdr Version 2
7.2 LICENSING SMARTSDR VERSION 2 Version 2 of SmartSDR for Windows is licensed software. FlexRadio makes the Version 2 software available under license to owners and users of FlexRadio 6000 Series radios. Most 6000 Series owners will need to purchase a license as part of the version 2 installation process.
Page 42 When the radio is connected to the Internet, it periodically checks its license status and updates it as appropriate. In the very unlikely event it needs to be restored to the radio, simply return to this screen and tap the button. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 43: Smartlink
Expandability: SmartLink is designed to scale as more operators and features are added. Third- party developers will be able to implement programs on the SmartLink API to bring remote connectivity to other applications. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 44: Smartlink Setup
To create your SmartLink account or log into an existing account, start Maestro, go to the Select Radio screen, and tap the Log In button near the bottom right of the screen. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 45 Google or Facebook account. You can use finger swipes on the Maestro touch screen to scroll the SmartLink Login screen up and down. Follow the instructions to create the account, then fill in the Name and Callsign fields and tap the Save button as shown below. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 46 Using different credentials may result in your radio not showing up in your connection list when trying to connect from a remote location. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 47: Register The Radio In Smartlink
Connect and SmartLink Setup buttons will appear at the bottom of the screen. Tap the SmartLink Setup button. The following window will appear. Tap the Register button. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 48 Similar measures are required should you need to unregister your radio from the SmartLink account. Note: You will not be able to connect to the radio from a remote network until this step is completed. This step must be done on the local network. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 49: Test The Radio In Smartlink
8.2.2. If the SmartLink configuration is correct, the indicator next to the Test button will turn green. Tapping the indicator will reveal configuration information about the SmartLink connection. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 50: Using Smartlink
Tap the Log In button and follow the screens to log into your SmartLink account. Use the credentials you used to create the SmartLink account (see section 8.2.1, Create a SmartLink Account). Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 51 When the login is complete, return to the SmartSDR start screen, which will now look similar to the following: Radios available through SmartLink are shown in the list with the logo. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 52 Select the version of SmartSDR to use then tap Run. The radio will start, using the same settings (number of panadapters, panadapter frame rates, etc.) it would have used if operated locally. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 53 Switch Radio button on the Radio tab of the Main Menu to end the session and return to the Select Radio screen, tap the logged-in SmartLink user icon in the lower right corner of the screen, then tap Logout in the Account Settings screen. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 54: Smartcontrol
SmartSDR gives you the ability to “zoom in” on the DX station and the pileup and quickly discern where and when to transmit to break the pileup. Using the twin tuning knobs for Slice A and B makes split operating a joy! Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 55: Getting Started - Activating Smartcontrol
You could call this “Driver’s Ed mode.” 9.4 GETTING STARTED - ACTIVATING SMARTCONTROL To activate the SmartControl you first need to be connected to your FlexRadio via SmartSDR for Windows, The 6000 M Series, SmartSDR-IOS, or SmartSDR-Mac. From the Maestro: ...
Page 56: Operating With Smartcontrol
Try it! Use your mouse to change the frequency on slice A and observe that the frequency changes on both your SmartSDR Window and the Maestro Slice indicator panel! Next, use your Maestro tuning knob and change the frequency. The same happens on your SmartSDR screen. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 57: Additional Smartcontrol Functions
You can tap any individual meter to toggle through different options, including:  Power Output   Mic Level  Compression Level  ALC Level Additional Meters if you have the PGXL Amplifier: Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 58: Accessing The Maestro Main Menu
Your Receive selection is highlighted in BLUE. (ANT1, ANT2, XVTR, XVTR1, XVTR2, RXA, RXB)  Your Transmit selection is highlighted in RED. (ANT1, ANT2, XVTR, XVTR1, XVTR2)  Select a different antenna/port by tapping on your desired RX or TX port. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 59 Menu for that slice. The menu display will highlight either the A or B frequency display to remind you which slice you are controlling in this menu. Functions available for the active slice include: Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 60: Exiting Smartcontrol
It may take a few seconds to negotiate the new connection. If it fails to negotiate a connection, simply return to the Radio Chooser and connect again to the desired radio as a SmartControl. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 61: Changing From Smartcontrol Mode To "Regular" Maestro Mode
Enjoy operating with SmartControl! 9.5.9 What you Cannot Do in SmartControl  The Maestro Mic input is not available while in SmartControl Mode.  The Maestro internal speaker is disabled when in SmartControl mode. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 62: Maestro Overview
Slice Receiver uses the same techniques to demodulate, filter, and convert the signal into audio, each Slice Receiver shares the same base performance. For the operator, this means Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 63: Panadapter
The Waterfall can be useful for understanding how signals are distributed in the spectrum over time, locating where stations have recently transmitted and even locating “holes” where operation will not interfere with other stations. A Waterfall can be seen below: Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 64: Panafall
In this way, the Panadapter portion of the display will show the current state of the spectrum and the Waterfall portion will show a historical perspective. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 65: How To Operate A Slice Receiver
The size of the steps, in Hertz, is controlled by the A and B Step buttons. See section 36.2, Slice Receiver Tuning Knobs and Buttons for full details. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 66: Making A Slice Receiver Active
Receiver is selected as the Active Slice, the old Active Slice will become inactive and its carrier line will change to red. There can only be one Slice active at a time. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 67: How To Change The Demodulation Mode
A pop-up display shows the frequency of the filter parameter, relative to the Slice Receiver’s tuned frequency as the filter is adjusted. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 68: Recording And Playback Of Slice Receiver Audio
TX selection below the letter B, or by pressing the Slice Receiver’s TX button. Press the MOX button, PTT on the microphone, footswitch, or other PTT source, and then press the play button on Slice Receiver A. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 69: How To Operate The Panadapter / Waterfall
7 MHz for the FLEX-6300 and down to a minimum of 1.5 kHz in bandwidth for the FLEX-6700 and 6kHz in bandwidth for the FLEX-6500 and FLEX-6300. There are multiple methods for adjusting the zoom of the Panadapter. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 70 If the Panadapter is on a Transverter (XVTR) band, an indicator appears to the left of the preamplifier indicator. A complete description of how to set up the Maestro for transverter operation can be found in section 27, How to Configure Transverters. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 71: How To Change The Signal Magnitude Scale Of A Panadapter
When both Panadapters are active the upper and lower halves of the control panel are populated. Complete details about the use of this screen are found in section 35.3.4, Panadapter Display Menu. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 72: Noise Mitigation
“mixing” problem found in traditional blankers. This WNB algorithm operates in real time over the entire Spectral Capture Unit (SCU) bandwidth to detect and replace impulses with an estimate of the desired signal. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 73: How To Configure Noise Mitigation
The benefits of increasing SNR with AGC are lost in this mode. Another disadvantage of turning AGC off is that the operator must adjust the 'RF Gain manually to avoid distortion due to overload by strong signals. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 74: Dsp Noise Mitigation Features
WNB work consistently on different bandwidths and signal levels. This unique architecture allows pulse removal with far less distortion than many traditional noise blankers. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 75: Slice Specific Noise Blanker (Nb)
Reduction increase the signal-to-noise ratio but will tend to “color” the signal. The slider should be set for the optimal tradeoff between signal-to-noise ratio and minimal distortion of the desired signal. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 76: How To Use Tracking Notch Filters
To create a TNF, press and hold your finger on either the Panadapter or the Waterfall, near the frequency to create the TNF. A menu will appear. Touch “Create TNF” to create a TNF at this location. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 77 Tapping a TNF once will put it in Edit Mode, causing the options to reappear. While in this mode you can also fine-tune the frequency and width of the TNF using the BW Select knob. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 78: Turning All Tracking Notch Filters On Or Off
To disable all TNFs at the same time, touch the TNF button in the top-left corner of the Slice menu. To remove all TNFs, tap and hold the TNF button. The Remove All TNFs option will appear as shown below. Tap the option to remove all TNFs. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 79: Automatic Notch Filter (Anf)
The threshold adjustment controls the adaptation rate of the filter. If a loud tone is present and you move the receive filter around it, you should hear the tone get canceled at different rates depending on the threshold control setting. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 80: How To Use Profiles
 Change Slice A to SAM (This loads the default linked MIC profile Default)  Load Default PR781 Mic profile. (This Mic profile is now linked to the AM/SAM mode group) Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 81: Transmit Profiles
Slice B is NOT the transmit Slice. TX ANT is ANT2  Load SO2R_TX1 Transmit profile. (This Transmit profile is now automatically linked to ANT1)  Set Slice B as the transmit Slice. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 82: Global Profiles
The Profiles control panel is reached by tapping on the Menu button on the main display, then on the Profiles tab on the Main Menu. On the Profiles control panel tap the Global, TX, or MIC option Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 83 Note: Performing a database reset from the front panel of the radio will delete all non-default profiles. It is recommended that you export your profiles with all options selected before performing a database reset. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 84: Loading Profiles
Slice frequency to 28.1 MHz, and then go back to 20m, persistence will return your Slice to 14.185 MHz. Resetting the radio to the factory settings (see section 37, Restoring to Factory Defaults) will clear the persistence settings. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 85 DAX I/Q Channel RX Antenna and Loop settings Display frames per second Preamplifier setting Display averaging settings Display min/max dBm Waterfall Auto-black enable and level Gradient selection Scroll speed (line duration) Color gain Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 86 FM Tone Mode FM Tone Value FM Repeater Offset TX Offset Frequency FM Repeater Offset Direction Diversity Child AGC Mode Diversity Child AGC Level Diversity Child Audio Gain Diversity Child RX Ant Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 87 TX Relay 3 Enable VOX Enable TX Relay 3 Delay VOX Level VOX Delay Show MIC Meter in RX Enable AM Carrier Level TX EQ Enable TX EQ Levels (all frequencies) Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 89: Configuring The Audio Output Devices
For this reason, FlexRadio recommends using wired networks for CW as there tend to be fewer issues that require troubleshooting on wired networks. Maestro will always attempt to compensate for any jitter or latency caused by any kind of network, but the mechanism for compensation is to add latency to ensure a steady stream of CW at the radio transmitter.
Page 90: Network Health Indicator
Once the health indicator drops to red bars or no bars, the link is not reliable enough to maintain communications. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 91: Network Diagnostics
0.10% after the radio has been running for several minutes, this is an indication that your network lacks sufficient capacity or throughput to provide error-free operation. You can reset this count by tapping on the Reset Stats button. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 92: How To Operate Multiflex
Station 2 is transmitting – it must wait until Station 2 is finished transmitting before it can transmit again. To indicate when another Station is transmitting, we have added an inverted TX icon: Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 93: Available Scus
Station 1 using SmartSDR for Windows is called FLEXDEV4 and Station 2 is using his FLEX-6600M Front Panel. In this scenario, both of these Stations are being operated by the same person in the Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 94 To help resolve such conflicts, we have added a Local PTT designation in the multiFLEX Dashboard (see section 33.15, multiFlex Tab). NOTE: When there is only a single Station active, it will automatically be set as the Local PTT. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 95: How To Operate Cw Mode
The pitch of received CW signals depends on the value of the Pitch control in the CW Transmit Control Panel (see section 36.6.2, CW Mode Transmitter Control Panel) and the distance of the CW carrier from the tuned frequency. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 96: How To Operate Cw In Split Mode
The B slice will control the transmitter. Pressing the button a second time will disable the B slice and return the transmitter to the A slice receiver. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 97: Cw Transmitting
Maestro screen is then "mirrored" to the external monitor providing a larger viewing field. 19.2.1 Straight Key and Paddles Connection For CW operation, the ⅛ inch (3.5mm) TRS KEY connector accepts a TRS plug for operating a keyer with paddles or a straight key. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 99: Using The Built-In Keyer
The Sidetone control will increase or decrease the Sidetone volume in the speakers and headphones. Note that the sidetone button to the left of the slider should be illuminated to enable sidetone output. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 100: How To Operate Qrq (High Speed) Cw With Qsk
Because of this limitation, it is recommended that headphones and CW paddles be connected to the radio when Maestro is used for CW operation in conjunction with a logger. Again, this limitation will likely be removed in a future release of SmartSDR for Maestro. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 101: How To Operate Single Sideband Mode (Ssb)
A small triangle will be added to the filter square. Do this for as many favorites as desired. A short press of the BW Select knob will cycle through the filters chosen as favorites. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 102: How To Operate Ssb In Split Mode
The B slice will control the transmitter. Pressing the button a second time will disable the B slice and return the transmitter to the A slice receiver. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 103: How To Configure The Audio Controls For Phone Modes
Each Slice Receiver can display an input level meter. Tap the Slice Receiver meter display to cycle through the available meters. There are two indicator components of the microphone or input Level meter that show the actual audio input level. The leftmost component is a solid bar Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 104: Operating The Speech Processor
200-400 Hz to concentrate your talk power in the audio frequency range that has the greatest intelligibility. The recommended setting is to leave the speech processor enabled and in the NORmal or DX position. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 105: How To Configure The Equalizer (Eq)
VOX Delay sets the hang time before the transmitter unkeys after you stop speaking. The delay should be set to be comfortable for the style of operation desired. See section 20.4.7, DAX Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 106: Monitor Mode Operation
TX channel and a microphone and use the microphone normally as long as the voice keyer program is not sending a message. When a voice keyer message is desired, the associated program simply Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 107: Monitoring Your Transmitted Audio
When done, tap the RECORD icon to stop recording.  Tap the PLAY icon to play back the transmitted audio. See section 11.7, Recording and Playback of Slice Receiver Audio for complete details on the usage of this feature. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 108: Recommended Audio Adjustment Steps For Phone Modes
The settings described above are included in MIC profiles. After the controls are adjusted, their settings can be saved for future use by storing a MIC profile. See section 16.1, MIC Profiles. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 109: How To Operate Am And Sam Modes
By reducing the AM Carrier level, the percentage of carrier relative to total PEP can be reduced to increase talk power in the AM sidebands. This is called Reduced Carrier AM. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 110: How To Operate Fm Mode
“+” set the repeater offset direction or enable simplex mode (no offset). The REV button enables a quick frequency change to the repeater split or transmit frequency. The Offset control selects the frequency offset or “split” in MHz for repeater operation. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 111: Memory Channels
Maestro.  Frequency - The frequency to tune the Slice when selecting the memory. This will initially be set to the Active Slice frequency when adding a memory. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 112 Note: Memories and Profiles are two separate features that may appear similar. However, memories record a relatively small number of radio configuration parameters, as listed above, while Profiles record many more parameters. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 113: How To Operate Diversity Reception (Flex-6600(M) And 6700 Only)
Speakers are not recommended because they allow the audio signals to combine in the space between the speakers to cause undesirable peaks and nulls in the sound. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 114 Your brain does the rest. Remember that the sound will be very different from normal reception since you are listening in “stereo” to the same signal on two different antennas. Adjustments made to the AF knob raise and lower both slice receivers in unison. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 115: How To Operate The Atu
+/- 100 KHz. Once you tune the frequency of the transmit Slice beyond that range, the ATU will be put into Bypass mode unless there is a previously saved ATU memory at the new frequency. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 116: Manual Mode
If a good match cannot be found, the ATU button will be off. If a partial match is found – the ATU can improve the match but can’t meet the criteria for a good match -- the ATU will remain engaged with the partial match and the ATU button will be off. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 117 ATU memory profile for that particular antenna. To clear the ATU memories, tap and hold the ATU MEM button until the Clear ATU Memories option appears, as shown below. Tap the option to clear the memories. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 118: How To Configure Antennas
Slice Receiver Flag indicates that QSK is possible in the selected mode. QSK is not supported with a separate receive antenna if that antenna is connected to ANT1 or ANT2. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 119: Using A Common Receive Antenna With Separate Transmit Antennas
Slice A has ANT1 selected as the TX antenna and Slice B has ANT2 selected as the TX antenna. Tapping the TX indicator in the Slice Flag changes the TX indicator to red and activates the Slice as the transmitter with its TX antenna. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 120: Using Two Transceive Antennas On The Flex-6700
ANT2. Slice B is selected as the active transmit frequency of 7.033 MHz on ANT2 as indicated by the red TX button. To move the transmit frequency to 14.225 MHz on ANT1, simply tap the TX button on Slice A, or press the TX A button. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 121: Using A Dedicated Receive Antenna
Transmission on the XVTR port could put up to +10 dBm of reverse power into the connected preamp. 25.7 RECEIVE-ONLY ANTENNA OPERATION Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 122: Antenna Selection For Transverter Operation
This provides typical transverter port transceiver operation. The Slice Flag on the right illustrates the configuration in which RX A is set as the receive antenna and XVTR as the transmit antenna. This configuration supports split transmit/receive transverter operation. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 123: Using The Receiver Rf Gain/Preamplifiers
30dB setting with the same input signal. This is caused by differences in the hardware implementation of the two preamp settings. If the 20dB setting is overloading, the 30dB setting should be tried before changing to the 10dB setting. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 125: Antenna Configuration Basic Terms And Rules
LoopA will be functional if either LoopA or RX A is selected. Logically RX A will assume a receive-only antenna connected to RX A and LoopA will assume that a device is connected between RX A IN and RX A OUT. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 126 A, RX B, or XVTR. If ANT1 and ANT2 are used separately as receive and transmit antennas, the transmitter reverts to mechanical relay TR switching. Each Slice has a QSK annunciator that indicates when PIN diode TR switching is engaged. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 127: Displaying Spots In Smartsdr For Maestro
Spot API commands in the radio. This section explains the various Spot controls that are available in SmartSDR. When enabled, spots will appear in the panadapter display as shown below: Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 128 Clicking any of these spots will tune the Active Slice to the spot frequency. To see the timestamp, additional comments, and deletion option, simply touch and hold a spot. A menu will appear, as shown below: Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 129 Enabling Override Background provides an option to change the color of the spot backgrounds. The Auto option picks a color that contrasts well with the spot color. Pressing the Clear All Spots button clears all currently collected spots on the radio. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 130: How To Configure Transverters
If it does not, check the RF and IF entries again and make corrections. RX Only: Enable this if you do not want to transmit through your transverter. It will lock out the transmit capabilities in Maestro. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 131 Valid indicates that Maestro has enough information to use the transverter which will be set automatically by Maestro and the FLEX-6000. When operating in a Transverter band the Transverter name will appear in the top right corner of the Panadapter as shown below: Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 132: Using A Transverter
If you were to change the frequency to 1296.1, Maestro would remember that this is the last frequency used on the 1296 transverter Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 133: Multiple Copies Of A Band
20 dB below the maximum power. For example, if a Max Power setting of +5dBm was configured, the slider “0” position would have no power, and “1” would be +5dBm - 20dB = -15dBm. The 50% setting on the slider will be +5dBm - 10dB = -5dBm. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 134: Transmitting On A Transverter
Slice Receiver volume should be adjusted for the best listening experience. In general, the AGC-T should be set to a fairly low value for best listening on transverter bands. In other words, it should be adjusted for a relatively quiet receiver. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 135: Using The Flexradio Power Genius Xl Amplifier
Full details can be found in the Power Genius XL User Guide, available from the FlexRadio website. The only configuration change needed to operate the Power Genius XL amplifier from SmartSDR for Maestro is to configure the correct transmit time delay.
Page 136 30 to 40 watts to drive the Power Genius XL. The amplifier presents a very low SWR to the transceiver, so in general, use of the FLEX-6000 ATU is not recommended. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 137: How To Connect An External Amplifier
If you need to use the hold-off, select Active High or Active Low to enable the interlock and set the proper polarity of the signal provided by the amplifier. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 138: Usb Cables
In some cases, data flow is bidirectional with a wide selection of speeds and signaling levels. FlexRadio carries two FTDI cables that can be used to interface with many devices: ...
Page 139: Cable Management
Tapping Remove removes the cable from SmartSDR management. Note that cables can be removed only when they are unplugged. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 140: Cat Cables
Note: This frequency is only changed/reported when the TX Slice is connected to the specified antenna. The Advanced menu provides configuration for link speed, number of data bits, parity, stop bits, and flow control. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 141 USB Cable. If Auto-report is TRUE, then anytime the source frequency changes it is automatically sent on the CAT cable  PC: Used to set and get the current power level Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 142: Bit Cables
PTT On/PTT Off - When on, the pin/bit will become active only when the radio is in transmit mode and the source frequency is within the output band/frequency range. Individual pin/bit PTT and TX Delays can be set and will be used by the radio when keyed. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 143: Bcd Cables
– Specifies which of several available BCD mappings are generated by the cable: o HF_BCD - Yaesu/Elecraft BCD band output VHF_BCD - Similar to HF_BCD but for VHF and higher bands HF_VHF_BCD - Combined HF and VHF output Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 146: How To Operate In Digital Modes
DAX channel input. This feature allows the user to override the DAX input with a PTT switch connected directly to the radio, or Maestro. NOTE: With multiFLEX, hardware PTT inputs always key using the Local PTT Station (see section 33.15, multiFlex Tab). Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 147: Rtty Mode
IF shift at the RTTY Mark frequency is transparent since the Slice seems to be tuned to the RTTY Mark. The Slice Receiver filter is also IF-shifted and the default filter presets are centered between the RTTY Mark and Space frequencies. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 148: Digi Mode Audio Offsets
This feature allows the operator to configure a narrow filter in DIGU or DIGL mode, and then conveniently drop it over a signal of interest by simply double tapping on the signal. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 149: How To Operate In Full Duplex (Fdx) Mode
As always, consult the contest rules for any requirements or restrictions on operating in this manner. Presently, SO2R operation is only possible on the FLEX-6600M and FLEX-6700. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 150: Fdx Capabilities By Radio Model
SO2R Mode with N1MM for the FLEX-6600(M) or FLEX-6700 How to Guide step-by-step setup instructions for operating a FLEX-6700 with N1MM in SO2R mode. A default Global profile, SO2RDefault, provides a starting point for configuring the radio for SO2R operation. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 151: Flex-6300 And Flex-6500 Full Duplex
An understanding of how overload occurs and methods to avoid it is required for the proper operation of a radio in full duplex mode. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 152: Preselection Band Filter Block
You should only use pre-amplification when necessary and only what is required to raise the noise level in the receiver by 8-10dB over the noise level when the antenna is disconnected. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 153: High-Performance Analog To Digital Converter Block (Adc)
ADC from the SCU. While circuitry should protect the radio from a damaging signal, it is highly recommended that station configuration be designed such that signal levels above the soft overload point are prevented from entering the antenna connector of the radio. FlexRadio assumes no responsibility for damage incurred from high signal levels entering the receiver.
Page 154: Main Menu
When this feature is disabled it will allow the receiver to be tuned in 1 Hz steps. The Use VFO B Knob button changes the RIT/XIT behavior. See section 36.1, Slice Receiver Activation Buttons for details. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 155: Radio Tab
The backlight section controls the intensity of the radio’s front panel backlight on those models that have this feature. The Frequency Offset controls are used to compensate for the error in the radio’s local oscillator. Calibrate the local oscillator by performing the following steps: Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 156 GPSDO signal (optional), followed by the TCXO signal (always provided). The radio will track changes in the availability of the signals. For instance, if the External 10 MHz signal appears, the radio will switch to it from the GPSDO or TCXO signal. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 157: Function F1-F6 Tab
Toggle TNF: Toggle the Tracking Notch Filters  Toggle FDX: Toggle Full Duplex operation  Toggle DIV: Toggle diversity reception  Toggle VOX: Toggle Voice Operated Transmission  Toggle Iambic: Toggle iambic keying mode Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 158: Network Tab
Choose a WiFi Network startup screen. The user can choose a WiFi network and connect to it or can choose to break a WiFi connection using the Forget button. See section 4.6, WiFi Network Setup for more information. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 159 Latency (RTT) is the round-trip time in milliseconds for a keep-alive packet to be sent between the Maestro and the radio. A smaller number indicates better network quality. On a wired LAN, Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 160 Total packets and lost packets are tracked by the type of stream, Audio, Waterfall, Panadapter, Meters, etc. When a Panadapter is closed, its packet statistics contribution is removed from the displayed statistics. This can make the statistics appear to “go backward”. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 161: Audio Tab
When Maestro is connected to a FLEX-6600 or FLEX-6700, diversity mode controls appear between the Slice A and Slice B volume controls and the Radio section. These controls provide adjustments for audio volume and AGC for each of the Slices in diversity mode. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 162: Transmit Tab
In the General section, the Tune Power control sets a limit on the transmitter power level when the TUNE button is pressed on the front panel. Tapping this field opens a keyboard so the value can be changed. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 163 DX, contesting, and SSB. The sliders provide a +/- 10 dB adjustment range over eight octaves. The settings shown above provide very good audio quality for many dynamic microphones. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 164: Tx Band Settings Tab
ACC TX: When selected, the ACC TX Pin on the ACC connector (back panel) is pulled to ground during transmit. The control on the front panel will modify this value for the current band (and vice versa). Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 165 RCA TX1/2/3: When selected, the TX1/2/3 RCA output is pulled to ground during transmission. HWALC: Enables the RCA Hardware ALC circuit when selected. Note: For the timing settings for several of these controls which apply to all bands, see the Transmit Tab, section 33.7. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 166: Phone/Cw Tab
In the CW section, the Iambic and Swap buttons control how signals from a connected straight key or paddle set are interpreted. To use a paddle set in Iambic mode, enable the Iambic button and select either the A or B Iambic mode. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 167: Straight Key And Paddles
The three sliders in the Filter Options section control the RX filter sharpness/latency for the three mode groups, Voice (USB/LSB/AM/SAM/FM), CW, and Digital (DIGU, DIGL, DFM, RTTY). The processing time, or latency, of the digital RX filters, increases as the slider is moved to the right. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 168: Xvtr Tab
See section 22.2, Memory Channels for full details. While section 22.2 describes the use of Memories with the FM modes, Memories can be used with any mode. 33.13 USB CABLES TAB The USB Cables tab is described in detail in section 30.1, USB Cables Overview Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 169: Spots Tab
CW paddles. The Local PTT Station is identified with the checkmark. This setting is a conflict resolver and is necessary since multiple Stations can be connected to the radio at once. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 172: Slice Receiver
The Receive Filter width can be adjusted manually by use of the associated bandwidth front panel control. The lower frequency limit and higher frequency limit can be adjusted in several ways. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 173: Dynamic Filter Depth
When using low latency ARQ mode digital programs such as PACTOR, a filter width greater than 2kHz is recommended to avoid adding extra latency inside the radio to the demodulation time. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 174: Front Panel Display
When the Slice is inactive a vacant blue background is shown. Tap the identifier to turn the Slice on or off. The corresponding front panel RX buttons will illuminate indicating that the Slice is receiving. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 175 The tuned frequency. The bottom element of the Slice Flag shows the tuned frequency. Tapping this element opens the Slice Receiver Menu which covers the entire Panadapter portion of the display. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 176: Slice Receiver Menu
The red Quick Record button records the received or transmitted audio of the Slice Receiver. Pressing the green Quick Play button will play back the recorded audio. When the radio is transmitting, the recorded audio will be played through the transmitter. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 177 Reception. See section 23, How to Operate Diversity Reception (FLEX-6600(M) and 6700 Only) for complete details. Across the bottom of the control panel are four menus for receiver filter selection, receiver mode, band, and frequency input. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 178 The tuned frequency of the Slice Receiver can be controlled with the keypad. Tap the number buttons to enter a frequency in MHz, and tap ENT to enter the value into the Slice Receiver. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 179: Power And Network Indicators - Maestro "C
At a 3% charge level, the battery-low warning appears and the Power LED flashes yellow. The warning message can be cleared by selecting OK. It is advised to shut down Maestro or connect the external power supply. At 1% the Maestro is forcibly powered off. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 180: Power And Network Indicators - Maestro "A" And "B
Maestro will not boot, and a HelpDesk ticket will have to be opened to resolve the issue. Tapping the RF output level indicator opens the Transmitter Control Panel. 35.3 DISPLAY PANADAPTERS 35.3.1 Panadapter Definition Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 181: Waterfall Definition
Depending on the amount of information stored, the oldest information at the bottom may be lost. Tap the Live button at the top right of the Waterfall to return to the real-time display. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 182: Panadapter Display Menu
The weighted average control, Weight, emphasizes signals that are increasing in amplitude over those that are declining. This tends to continue to show locations where signals have been and show a more precise view of their full amplitude when they first appear. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 183 Decrease the Gain until the background is deep blue. This ensures that small signals in the noise will be easily seen. The Color control offers options for the color scheme used in the Waterfall. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 184: Horizontal Zoom
In Wideband mode, the radio will open the Bandpass Filters to their maximum for any Panadapter using the associated antenna. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 185: Vertical Zoom
Receiver. If either the A or B Slice Receiver is inactive, it will be activated in the new Panadapter. When two Panadapters are displayed, the second (lower) Panadapter can be removed by tapping the down-arrow symbol between the upper and lower Panadapters. Maestro supports at most two Panadapters. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 186: Auxiliary Meters
Tapping the “plus” button adds a meter, and tapping a “minus” button removes a meter. The value displayed in each meter can be selected by tapping on the meter. A selection of values is available that depends on the equipment connected to the radio. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 187: Front Panel Knobs And Buttons
A long press of either RX button, when the Slice is active, and the button is green, activates the RIT (Receiver Incremental Tuning) feature. RIT allows the Slice Receiver’s reception frequency to be adjusted up and down with the tuning knob while holding the transmit frequency constant. In this Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 188 The difference in the frequencies remains constant. Another long press of this button disables this feature. The two Slices do not have to be located in the same panadapter, or on the same band. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 189: Slice Receiver Tuning Knobs And Buttons
The A and B Lock buttons lock the frequency of the corresponding Slice Receivers so that any attempt to change the frequency is ignored. When the frequency is locked, the button illuminates in red. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 190: Slice Receiver Audio Knobs
Slice Receiver. Another short press returns Maestro to two-channel audio operation. A longer press of the knob mutes the Slice Receiver. Changing the audio level unmutes the Slice Receiver. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 191: Slice Receiver Bandwidth Knobs
A short press cycles the filter through the list of preset filters, appropriate to the Slice Receiver’s mode.  A long press changes the knob mode from High/Low to Center/Width and back. When the knob mode changes, the annunciator in the Slice Flag changes accordingly. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 192: Transmitter Knobs And Buttons
The button illuminates in red when the transmitter is active. The ATU button engages and disengages the Automatic Tuning Unit. Please see section 24, How to Operate the ATU for complete details on the usage of this device. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 193: Tx Menu
DX+ is most effective if you increase the low-cut TX filter to between 200-400 Hz to concentrate your talk power in the audio frequency range that has the greatest intelligibility. This feature is available only in SSB, AM, and FM modes. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 194  Mic and TX Profiles: The operator may choose from a list of microphone and transmit profiles defined in the radio. See section 16, How to Use Profiles for complete details. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 195: Cw Mode Transmitter Control Panel
24, How to Operate the ATU for complete details.  TX Profiles: The operator may choose from a list of transmit profiles defined in the radio. See section 16, How to Use Profiles for complete details. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 196: Function Buttons
A longer press of one of the buttons invokes the function mapped to the F4, F5, or F6 buttons. A second long or short press reverses the action of the first press. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 197: Restoring To Factory Defaults
FLEX-6300 Reset Procedure With the radio powered off, press and hold down the power button until the Power LED blinks white, then release the power button. Allow the radio to continue booting normally. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 198: Error And Status Messages
Various error and status messages regarding the operational state of your radio may be displayed to inform you of conditions that require attention. The following section describes these messages. If any of these errors occur frequently, immediately contact FlexRadio Support by submitting a HelpDesk support ticket for assistance.
Page 199: Troubleshooting Tips
(MAC) address. If this feature has been enabled, failure to add the FLEX-6000 to the permitted MAC address access control list will prevent the FLEX-6000 from showing up in the Select Radio screen. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 200: Maestro Becomes Unresponsive
If the direct connect method resolves the problem, then the wireless network cannot run the FLEX-6000.  Panadapter resource not available – If a Panadapter resource is not available on the radio, power cycling the radio will free the locked Panadapter resource. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 201: Amber Front Panel Light Stuck On
A common cause of this problem is the isolation of the radio from the Internet. The radio must be able to contact the FlexRadio server through the Internet to find and install the license. This step is done by the radio’s firmware, not by the SmartSDR software running in Maestro. The most common reason for the radio being isolated from the Internet is connecting the radio directly to Maestro with an Ethernet wire.
Page 202: My Radio Shows Up On The Select Radio Screen, But When I Try To Connect, It Doesn't Work
Forwarding-and-How-do-you-do-it, should provide a good starting point. In addition to port forwarding, your radio should be assigned a Static DHCP address by the router to avoid occasional breaks in the SmartLink connection caused by changes to the radio’s IP address. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 203: When I Use Public Wifi, Sometimes My Panadapter Hangs Or My Audio Has Gaps In It. How Do I Fix This
Use the Network Health indicator on the SmartSDR main screen to learn if the network is the problem. As an aside, testing with 3G and LTE cell phone connection hotspots has fared well. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 204: Legal Notice
40 LEGAL NOTICE ©2013 - 2024 FlexRadio, Inc. All rights reserved. FlexRadio®, SmartSDR™, and related trademarks, names, and logos are the property of FlexRadio, Inc. and are registered and/or used in the U.S. and countries around the world. All other trademarks are the property of their respective owners.
Page 205 FlexRadio. The terms of use of any FlexRadio product or service are set out in a separate license or other agreement with FlexRadio applicable thereto. NOTHING IN THIS DOCUMENTATION IS INTENDED TO...
Page 206: Copyright Information
Information in this document is subject to change without notice and does not represent a commitment on behalf of FlexRadio. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, for any purpose other than the purchaser’s personal use, without the prior...
Page 207: Software Licence Agreements
AGREEMENT, YOU MUST NOT INSTALL, USE, OR COPY THE SOFTWARE PRODUCT. License Grant FlexRadio, Inc. grants to you, and you accept, a limited, non-exclusive, and revocable license to use the Software Product, in machine-readable, object code form only. You shall use the Software Product only as authorized in this Agreement.
Page 208 Software product, and either destroy the original Software Product and all copies of the Software or return the Software to FlexRadio, Inc.. at your own cost. Restrictions on Transfer Without first obtaining the express written consent of FlexRadio, Inc., you may not assign your rights and...
Page 209 FlexRadio, Inc.. FlexRadio, Inc. reserves the right to substitute a functionally equivalent copy of the Software Product as a replacement. If FlexRadio, Inc. is unable to provide a replacement or substitute Software Product or corrections to the Software Product, your sole alternate remedy shall be a refund of the purchase price for the Software Product exclusive of any costs for shipping and handling.
Page 210 Texas in Travis County or the United States District Court, Western District of Texas, Austin Division. You and FlexRadio, Inc. consent to the jurisdiction of such court in any such civil action or legal proceeding and waive any objection to the laying of the venue of any such civil action or legal proceeding in such court.
Page 211 API and underlying content into your software so that Your software and/or application can interface directly with FlexRadio, Inc. devices and/or software. In order to use and access the API, You may Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 212 If a subsequent version is unacceptable to You, You may cancel the API at any time by simply deleting the FlexRadio API from Your product. If You continue to use the API on Your product, You will be deemed to have accepted any modifications.
Page 213 United States or your country of residence. 4. Termination of Use. FlexRadio, Inc. hereby reserves all rights to discontinue Your access to the API and the underlying content at any time, at FlexRadio’s sole discretion, for any reason, with or without notice.
Page 214 If the API is finally adjudged to so infringe, or in FlexRadio’s opinion is likely to become the subject of such a claim, FlexRadio shall, at its option, either: a. procure for You the right to continue using the API, b.
Page 215 District of Texas and the Texas state courts located in Travis County, Texas. 3. Severability and Waiver. The failure of FlexRadio, Inc. to exercise or enforce any right or provision of this Agreement shall not constitute a waiver of such right or provision. If any provision of this Agreement is found by a court of competent jurisdiction to be invalid, the parties nevertheless agree that the court should endeavor to give effect to the parties’...
Page 216 4. Statute of Limitations. You agree that regardless of any statute or law to the contrary, any claim or cause of action arising out of or related to the use of the FlexRadio API or this Agreement must be filed within one (1) year after such claim or cause of action arose or be forever barred.
Page 217: Gpl Information
To prevent this, we have made it clear that any patent must be licensed for everyone's free use or not licensed at all. The precise terms and conditions for copying, distribution and modification follow. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 218 Program, the distribution of the whole must be on the terms of this License, whose permissions for other licensees extend to the entire whole, and thus to each and every part regardless of who wrote it. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 219 Program (or any work based on the Program), you indicate your acceptance of this License to do so, and all its terms and conditions for copying, distributing or modifying the Program or works based on it. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 220 10. If you wish to incorporate parts of the Program into other free programs whose distribution conditions are different, write to the author to ask for permission. For software which is copyrighted by the Free Software Foundation, write to the Free Software Foundation; we Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...
Page 221 You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. Also add information on how to contact you by electronic and paper mail. Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page...

This manual is also suitable for:

Maestro a Maestro b Maestro c

FlexRadio Signature FLEX-6000 Series User Manual

1 How to Request Technical Support and Assistance

2 Key Contacts

3 Getting to Know Your Maestro

4 Setting up Your Maestro

5 Multiflex

6 Connecting to a Radio

7 How to Select Maestro and Radio Software

8 Smartlink

9 Smartcontrol

10 Maestro Overview

11 How to Operate a Slice Receiver

12 How to Operate the Panadapter / Waterfall

13 Noise Mitigation

14 How to Configure Noise Mitigation

15 How to Use Tracking Notch Filters

16 How to Use Profiles

17 How to Operate Maestro Audio

18 How to Operate Multiflex

19 How to Operate CW Mode

20 How to Operate Single Sideband Mode (SSB)

21 How to Operate am and SAM Modes

22 How to Operate FM Mode

23 How to Operate Diversity Reception (FLEX-6600(M) and 6700 Only)

24 How to Operate the ATU

25 How to Configure Antennas

26 Displaying Spots in Smartsdr for Maestro

27 How to Configure Transverters

28 Using the Flexradio Power Genius XL Amplifier

29 How to Connect an External Amplifier

30 USB Cables

31 How to Operate in Digital Modes

32 How to Operate in Full Duplex (FDX) Mode

33 Main Menu

34 Slice Receiver

35 Front Panel Display

36 Front Panel Knobs and Buttons

37 Restoring to Factory Defaults

38 Error and Status Messages

39 Troubleshooting Tips

40 Legal Notice

41 Copyright Information

42 Software Licence Agreements

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Summary of Contents for FlexRadio Signature FLEX-6000 Series