FlexRadio Systems SDR-1000 Operating Manual

FlexRadio Systems SDR-1000 Operating Manual

Software defined radio
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SDR-1000

OPERATING MANUAL

Ver sion 1.8.0

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Summary of Contents for FlexRadio Systems SDR-1000

  • Page 1: Operating Manual

    SDR-1000 OPERATING MANUAL Ver sion 1.8.0...
  • Page 2 S D R - 1 0 0 0 S O F T WA R E D E F I N E D R A D I O Operating Manual © FlexRadio Systems 12100 Technology Boulevard • Austin, TX 78727 Phone: (512) 250-8595 • Fax: (512) 233-5143 Email: sales@flex-radio.com...
  • Page 3: Table Of Contents

    Griffin PowerMateTM VFO Tuning Knob.................... 6 Contour Designs Shuttle Pro V.2......................6 External Clock Reference Option......................7 USB To Parallel Adapter........................7 4 PLUG PINOUTS................8 EXTERNAL CONTROL CONNECTOR (X2)..................8 Push To Talk (PTT) Input........................9 Mute Receiver............................9 External Linear Amplifier Keying......................9 ©FlexRadio Systems...
  • Page 4 Variable Filter Buttons........................49 (8) MODE SPECIFIC CONTROLS....................50 Phone Controls ...........................50 CW Controls............................51 Digital Controls...........................53 (9) DISPLAY CONTROLS.........................53 Panadapter View Controls........................54 Display Type Controls.........................55 Display Type Descriptions........................55 Spectrum..............................56 Panadapter (Panoramic Adapter).........................56 Histogram..............................57 ©FlexRadio Systems...
  • Page 5 Update Notification..............................77 Click Tune Offsets (Hz)..............................77 Auto Mute..................................77 Main Console (Always On Top)...........................78 Keyboard..................................78 Calibration Sub-Tab..........................79 Freq Cal..................................79 Level Cal..................................79 RX Image Reject Cal..............................80 Filters Sub-Tab........................... 80 AUDIO TAB............................81 Sound Card Sub-Tab........................... 81 Sound Card Selection..............................81 ©FlexRadio Systems...
  • Page 6 AGC/ALC Sub-Tab.......................... 102 AGC..................................102 Leveler..................................103 ALC...................................103 TRANSMIT TAB..........................104 TX Profiles................................105 Transmit Filter................................105 Noise Gate.................................106 VOX..................................106 TX Monitor................................107 Compression................................107 AM Carrier Level...............................108 PA SETTINGS TAB..........................109 Gain By Band (dB)..............................109 EXT. CTRL TAB..........................110 APPEARANCE TAB ........................111 Display Sub-Tab..........................111 ©FlexRadio Systems...
  • Page 7 (33) CWX FORM..........................132 Standard CWX Controls........................132 CWX Memories............................133 Special Characters.............................133 Keyboard and Extended Controls.......................134 Extended CWX Controls..........................134 Morse Definition Editor..........................136 10 OPERATION................137 POWER-UP PROCEDURE......................138 POWER-DOWN PROCEDURE...................... 138 TUNING METHODS........................140 Spectrum Drag and Click...........................140 ©FlexRadio Systems...
  • Page 8 I get an error when I try to use my USB Adapter that says “USB Device not found. (-1)”....194 I see a hump around 10kHz below the center line on the display, that doesn’t seem to go away....194 ©FlexRadio Systems...
  • Page 9: Preface

    Due to the nature of the SDR-1000, the largest part of this operating manual, by far, will refer to software. The operating manual has numerous screenshots of windows and forms to detail the various steps.
  • Page 10 Knowledge Base If you have any ideas on how to improve the SDR-1000, please feel free to contact us, or better still, to join our email reflector (see our website for details). Not only is the SDR-1000 a software defined radio; it is also a user defined radio.
  • Page 11: Acknowledgements

    Acknowledgements FlexRadio Systems could not be as successful, nor could the SDR-1000 radio be what it is today without the many selfless contributions of our users all over the world. These contributions have spanned and continue to span improvements to our hardware and software, ranging from bug reports and feature requests to actual design and implementation of certain functionality.
  • Page 12: General Description

    12kHz to 60MHz along with transmit capability on all licensed amateur bands within the coverage range. The theory behind the SDR-1000 is described in detail in a four part QEX magazine series entitled, “A Software Defined Radio for the Masses .”...
  • Page 13: Specifications

    An optional filter bank is supplied that can be configured for bands below 160m. Requires external user supplied pre-selector for best operation below 160m Sound Card: Edirol FA-66 @ 96kHz sampling rate. 40W continuous carrier (100% duty cycle) We recommend the Astron SS-30 or SS-30M or equivalent power supply for the SDR-1000 ©FlexRadio Systems...
  • Page 14: Hardware Configuration

    The filters improve 3rd harmonic rejection by more than 35dB over the original SDR-1000. There are BPF filters in front of the preamp board (in the signal chain) to provide overload protection for the LNA. The LNA is then followed by the low pass filters, which in turn drive the QSD (mixer) on the TRX board.
  • Page 15: Enhanced 1W Pep Driver

    (DEMI144-28FRS). Only a single coax cable is required for both RF and TR control. The SDR1K-ENC enclosure has mounting holes to allow either common or separate transmit/receive connections for transverters. You can even set up the SDR-1000 to provide a dual 144/28MHz IF to cover all of the VHF through microwave bands.
  • Page 16: Upgrades

    2nd conversion IF for microwave transverters. The 144-28FRSK has a nominal linear output power of 50 - 100 mW with the 28 MHz. IF drive provided by the SDR-1000. On the receive side, a high dynamic range amplifier, a high level double balanced mixer (+17.0 dBm) and a three chamber helical filter...
  • Page 17: Automatic Antenna Tuning Unit

    The attractive GCN-SLV Griffin Technology PowerMate control knob connects to a USB port to provide variable-rate VFO tuning for the SDR-1000. A simple click of the knob changes the tuning rate to any of four user configured tuning rates. It can even be programmed to set the volume by a press, hold, and turn of the knob.
  • Page 18: External Clock Reference Option

    The SDR-USB supports all of the control and status lines required by the SDR-1000 and has special firmware to offload hardware polling tasks from the PC. A separate download and installation of driver software is required.
  • Page 19: Plug Pinouts

    5VDC Output @ 50mA Ground Signal Ground for all inputs/outputs * Requires enabling X2 TR Sequencing on the Setup Form - General Tab, Options Sub-Tab. ** Requires enabling Auto Mute on the Setup Form - General Tab, Options Sub-Tab. ©FlexRadio Systems...
  • Page 20: Push To Talk (Ptt) Input

    The SDR-1000 X2 connector provides 6 open collector output pins for user defined functions. The purpose of the UCB is to accept data from the SDR-1000 via the X2 connector to be loaded into a 16X16 memory matrix on the UCB. Pins 1 through 4 of the X2 connector are used as an address field by the UCB to address one of 16 registers within the memory matrix.
  • Page 21: Enclosure Microphone Connector

    We recommend use of the Heil microphones, especially the PR series; however, the HM-10 and Goldline microphones will also work well with the SDR-1000. Use the procedure found in the Voice Transmission Operation section in order to match the microphone appropriately with the sound card and the DSP.
  • Page 22: Keyer Input

    Setup Form-DSP Tab, Keyer Sub-Tab. Table 5: PC Serial Port Pinout Serial Port Pin* Keyer Signal 4 (DTR) Common 6 (DSR) 8 (CTS) Dash * Assumes a 9-Pin connector [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 23: Hardware Setup

    Chapter Hardware Setup The hardware setup process is as simple as making connections from the SDR-1000 enclosure to the hardware necessary to run the radio (power supply, antenna, parallel port, and sound card). Refer to the numerical callouts in Figure 3 below for the location of all radio connections.
  • Page 24 Reversing the cable will not allow the filter to operate properly. If you have any questions regarding the need to use this filter for your sound card, please contact FlexRadio Systems. Then connect the Microphone Input from the sound card (usually color coded red) to the plug labeled “To Mic In”...
  • Page 25 QRP since the PA does not cover 6m. Finally, connect any external hardware control lines (linear amplifiers, transverters, or relays) to the X2 connector (9) as defined in the section on Plug Pin Out above. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 26 H A R D W A R E S E T U P C H A P T E R ©FlexRadio Systems...
  • Page 27 X2 External Control Connector – See Table 1 for connections. (10) Parallel Port Connector (to PC parallel port) – Optional SDR-USB USB to Parallel Adapter connects to this port. (11) Code Key/Paddles Connector – See previous chapter for connection. ©FlexRadio Systems...
  • Page 28 To Line In on Sound Card – Blue color-coded. (15) To Microphone Input on Sound Card -- Pink or Magenta color-coded. (This connector is directly connected to the corresponding pins on the front panel mic connector.) [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 29: Software Installation & Setup

    Chapter Software Installation & Setup WARNING! Proper operation of the SDR-1000 depends on the use of a sound card that is officially recommended by FlexRadio Systems. Refer to the Specifications page on www.flex-radio.com to determine which sound cards are currently recommended. Use only the specific model numbers stated on the website because other models within the same family may not work properly with the radio.
  • Page 30: Install Latest Sound Card Drivers

    After reviewing the new version and verifying that your setup works, uninstalling previous versions is fine (but not necessary). Note that it is necessary to manually delete the database file (PowerSDR.mdb) from the application directory (usually c:\Program Files\FlexRadio Systems\ PowerSDR x.y.z) in order to completely remove previous versions.
  • Page 31 Follow the instructions to install the framework using the download from Microsoft’s website and then restart the Setup.exe program. You should see the following screen. Figure 4: PowerSDR Installation Welcome Screen Click the Next button to continue. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 32 Figure 5: PowerSDR Installation Folder Selection You can change the installation directory here, though we recommend you use the default for troubleshooting purposes. Click the Next button to continue. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 33 C H A P T E R Figure 6: PowerSDR Installation License Agreement Read the GNU Public License. If you accept, click I Agree and click the Next button to continue. Otherwise click Cancel. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 34 Click the Next button to confirm these settings and to copy the necessary files to the selected install directory. Once the files have been copied, you will see the following screen. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 35: Powersdr Setup Wizard

    Before powering up the radio hardware, load the PowerSDR console using the shortcut on the Desktop (or in the Start menu). When you run (a new release of) PowerSDR for the first time an optimization routine will run and the following screens will appear: [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 36 When the routine has completed a brief startup sequence will follow, after which you should be greeted by the PowerSDR Setup Wizard as shown in the figure below. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 37 Click the Yes or No button to indicate whether you would like to import a database from a previous version (assumes you are upgrading). If yes, click the Select File … button and select the PowerSDR.mdb file from a previous version (default directory is C:\Program Files\FlexRadio Systems\PowerSDR x.y.z\). A prompt ©FlexRadio Systems...
  • Page 38 Figure 13: PowerSDR Setup Wizard - Radio Model Select the radio model you will be using. If you are running without any radio, e.g. for demonstration purposes, select Demo/None. Click the Next button to continue. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 39 Select the Yes or No button to indicate whether your configuration includes the RF Expansion Board (RFE), and click the Next button to continue. Note: All SDR-1000s shipped since 2005 include the RFE board. Figure 15: PowerSDR Setup Wizard - 2m XVTR ©FlexRadio Systems...
  • Page 40 Select the Yes or No button to indicate whether your configuration includes the optional 2m transverter. If yes, select your model using the drop down box. Note that FlexRadio Systems only sells the DEMI144- 28FRS model. It uses negative logic keying on the coax to the transverter. Click the Next button to continue.
  • Page 41 Click the Yes or No button to indicate if you will be using the optional external clock reference. If yes, select the frequency of your source using the drop down box (10 or 20MHz). Click Next to continue. ©FlexRadio Systems...
  • Page 42 Figure 19: PowerSDR Setup Wizard - USB Adapter Click the Yes or No button to indicate if you will be using the USB to Parallel adapter. Click Next to continue. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 43 FlexRadio Website Specifications page, then select the Unsupported Card option (this will require further setup after the wizard is complete). Unsupported sound cards may be used at the customer’s own risk. FlexRadio Systems cannot vouch for proper operation or support for such cards. Click the Next button to continue.
  • Page 44: Sound Card Setup

    This translates into higher dynamic range. Note that making any changes to the Line In gain will invalidate the calibration. So make sure to calibrate after doing this procedure (see below). [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 45: Powersdr Calibration

    The three calibration routines available (Frequency, Level, and Image Null) are detailed in the sections below. Note: Before calibrating the frequency, the radio needs at least a 5-minute warm-up period to ensure temperature drift is negligible. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 46: Frequency Calibration - Dds Clock Adjustment

    10dB or more. Click the middle Start button across from the word Level to start the calibration. This calibration is accurate to within 0.1dB with respect to the source. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 47: Image Null Calibration

    C H A P T E R Image Null Calibration Since the SDR-1000 has an analog front end, phase and amplitude imbalances can exist between the I and Q channels. Fortunately, this is a simple correction for the DSP software. The procedure for calibrating the receiver is described below.
  • Page 48 Press the Apply button when finished to save the values in the database. Note: Be sure to use the Import Database function when installing future PowerSDR software releases in order to preserve the calibration values. ©FlexRadio Systems...
  • Page 49: Front Console

    Color Buttons are used as color selectors. You can pick a generic color (yellow or green) or even  make your own using the drop down menu. Up/Down controls are similar to a Text Box, but are limited to numeric input. They also have  arrows for simple increment/decrement behavior. ©FlexRadio Systems...
  • Page 50 In addition to these basic features, there are many other controls that are described in detail below. Hint: Hovering with your mouse over any control will show a brief description of that control’s function. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 51: Vfo A

    (or using Ctrl + Left/Right Arrow). The Save button quickly saves a frequency, mode and filter. The saved frequency is shown in the box to its left. The Restore button restores the most recently saved frequency (displayed), mode and filter. ©FlexRadio Systems...
  • Page 52: Vfo B

    RX Meters Signal (Signal Level): Calculates the true RMS power in dBm of the current signal within the  passband. Sig Avg (Signal Average): Calculates the true RMS power in dBm of a time-averaged signal  within the passband. ©FlexRadio Systems...
  • Page 53: Tx Meters

    EQ. Lev Gain: Reads the gain in dB currently being applied by the leveler.  Comp: Reads the power in Watts after the compressor. If it is not enabled, it reads the same as Lev.  ©FlexRadio Systems...
  • Page 54: Band Selection & Band Stacking Memories

    Note that the VHF+ button will swap between the typical HF bands and any configured transverters (see the XVTRs Form in chapter 10). The VHF band buttons work in the same way, but for the frequencies within the transverter frequency range. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 55: Mode Selection

    DRM: Digital Radio Mondiale (requires licensed external demodulator software not available from  FlexRadio Systems; Enables VAC if VAC Auto Enable is engaged) Hotkeys are available in the Setup-Form, Keyboard Tab to cycle through the various modes using the keyboard.
  • Page 56: Filter Controls

    Each of the 10 labeled filter buttons can be customized for any of the modes. To do so, right click on a filter button and select Configure… to bring up the following screen. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 57: Variable Filter Buttons

    After a variable filter (Var 1, Var 2) has been shifted you can use the IF->V button to translate a filter shift to a new VFO frequency (see the VFO Controls section below) ©FlexRadio Systems...
  • Page 58: Mode Specific Controls

    Voice modes are typically optimized when the peak reading on the TX Mic Meter reads just below 0dB (see above) COMP: click to enable the feed forward compression and adjust its level with either the slider or  the textbox. See also the Setup Form-Transmit Tab. ©FlexRadio Systems...
  • Page 59: Cw Controls

    The CW controls, shown below are available when either CWL or CWU is selected. Most of these controls can be found on the Setup Form-DSP Tab, Keyer Sub-Tab (see next chapter, where you can also find a more detailed description). [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 60 Panadapter. It can be an especially useful visual aid when operating split to position your transmit frequency where desired (in a pile-up) using VFO B. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 61: Digital Controls

    (E.g. MixW requires the mono setting, whereas DREAM requires stereo). (9) Display Controls The main display controls, shown below, consist of two sections: Panadapter view and display mode controls. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 62: Panadapter View Controls

    DC offset at -11kHz (as many will notice on the display), but it also shifts the center of the window of bandwidth. Now the window spans -48 - 11 = -59kHz on the left to +48 - 11 = 37kHz on the right. Figure 39: Impact of 11kHz IF on Location of 0Hz Line Within the Panadapter ©FlexRadio Systems...
  • Page 63: Display Type Controls

    (Scope, Phase and Phase2). The colors of everything on the display (text, data line, background, etc) are completely customizable using the Setup Form-Appearance Tab. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 64: Spectrum

    The selected filter is displayed as an overlay to help the user visualize the filter. Shown are the  Main RX filter (green), the Sub-RX filter (blue) and the TX filter edges (yellow vertical lines). The ©FlexRadio Systems...
  • Page 65: Histogram

    The red signals are real-time (current) signals that are above that same threshold. The green signals are previous peaks on that same frequency that will fade as time goes by (a type of history, hence the name). [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 66: Waterfall

    Shown is effectively a 1kHz tone (tuned to 7.0411MHz with the signal at 7.0401MHz). The Scope Display is particularly useful when transmitting to monitor your transmitted waveform. The time base can be adjusted on the Setup Form- Display Tab. ©FlexRadio Systems...
  • Page 67: Phase

    In this setting the display is turned off. It is mainly used for debugging purposes, but can also be used with slower systems to decrease the CPU load to more reasonable levels. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 68: Cursor And Peak Position

    When either Split or Sub-RX is enabled clicking on the right mouse button will cycle the crosshairs through yellow, red and none. When the red crosshairs are showing, clicking the left mouse button will tune VFO [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 69: (10) Sub-Rx Controls

    NR is not available when Binaural (BIN) audio is selected unless BLMS is checked on the Setup Form. ANF (Automatic Notch Filter): Activates the Automatic Notch Filter algorithm.  Note: ANF is not available when Binaural (BIN) audio is selected unless BLMS is checked on the Setup Form. ©FlexRadio Systems...
  • Page 70: (12) Vfo Controls

    A > B: Transfers the contents of VFO A to VFO B (frequency, mode, and filter).  A < B: Transfers the contents of VFO B to VFO A (frequency, mode, and filter).  A <> B: Swaps the contents of VFO A and B (frequency, mode, and filter).  ©FlexRadio Systems...
  • Page 71: (13) Cpu

    On/Receive On/Transmit Figure 50: Power Button States If the SDR-1000 is connected properly and powered on, you will hear relays switch (click) as you cycle the software Power button. Note1: In Standby, the software Power button places the hardware in a lower, standby power state (around 500-600mA), but does not turn off the 12VDC power to the hardware.
  • Page 72: Mon (Monitor)

    (18) X2TR Click to enable using pin 7 of the external controls connector (X2) on the rear panel of the SDR-1000 to control an external amplifier (see the Plug Pinouts chapter). This is the same control as X2 TR Sequencing on the Setup Form–General Tab, Options Sub-Tab.
  • Page 73: (19) Atu Modes

    AF control can be set to a lower value. If the AF control is set too high, it may cause feedback in the receiver. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 74: Rf (Radio Frequency Gain)

    This control adjusts the percentage of maximum power that will be available in transmit mode. A typical setting for the 1W SDR-1000 radio might be 50% (roughly 500mW), while a radio configured with the 100W PA may be operated at full power (100W) into a proper 50 ohm load. The Drive control may be adjusted while in either receive or transmit mode.
  • Page 75: (25) Preamp

    The bar graph displays in green the signal level below the threshold and in red above (only the red level is audible with SQL enabled). Squelch can be very useful to remove all noise from CW signals, especially in narrow filter settings. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 76: (27) Date/Time Display

    (29) – (33) Operating Forms Each of these items open forms, which are used while operating. Please refer to the Operating Forms chapter below for more detailed information on each one. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 77: Setup Form

    If you have used the default directory during installation as recommended, the database file will be in C:\Program Files\FlexRadio Systems\ PowerSDR x.y.z\. The database file is called PowerSDR.mdb. Double click this file and it will attempt to import all the settings.
  • Page 78: General Tab

    (i.e. added the PA, changed sound card, etc.). Radio Model Figure 54: Radio Model Selection Use this selection to choose the hardware (if any) that is connected to the computer running the PowerSDR software. ©FlexRadio Systems...
  • Page 79: Hardware Setup

    C H A P T E R Hardware Setup Figure 55: Hardware Setup The Hardware Setup section allows the user to configure the software to match the SDR-1000 hardware configuration. LPT Address: The memory location of the parallel port used to connect the SDR-1000. This is ...
  • Page 80: Dds

    RFE Present: Should be checked if the RF Expansion board is installed in the stack. The RFE is  installed in all current (2005) SDR-1000 packages. Note that if the RFE is not installed (and the box is not checked), none of the controls below it will be visible.
  • Page 81: Options Sub-Tab

    IF (Hz): Displays the Intermediate Frequency used in the software to avoid low frequency noise.  This is currently locked to 11.025kHz. Options Sub-Tab Figure 57: Setup Form - General Tab, Options Sub-Tab [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 82: Options

    Check the box to enable this option and to set the delay. The sequence when switching from RX to TX is: MOX → X2-7 goes high → Delay → SDR-1000 transmit relay gets set. The sequence when switching from TX to RX is: MOX → SDR-1000 transmit relay is reset →...
  • Page 83: Update Notification

    Above Normal or High might improve the performance of the software. Note that FlexRadio Systems does not recommend using the Real Time setting as this could cause timing problems with the operating system.
  • Page 84: Main Console (Always On Top)

    This feature is normally enabled by default, but can be disabled to prevent accidentally moving the VFO frequency due to accidental key presses. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 85: Calibration Sub-Tab

    Installation & Setup chapter. Freq Cal Used to calibrate the frequency of the 200MHz oscillator in the SDR-1000. Enter the frequency of the signal source used for calibration in the control provided. The signal source can be a signal generator or a signal like WWV.
  • Page 86: Rx Image Reject Cal

    If not checked, the Var filters can only be changed by adjusting the Filter Low and High Cut controls on the front panel. Default Low Cut (Hz): Sets the default low frequency cut-off for the all the filters.  ©FlexRadio Systems...
  • Page 87: Audio Tab

    Sets the size of the audio buffers in samples. Larger buffers mean more delay, but smoother audio. Smaller buffers yield less latency, but at the cost of CPU load. The 2048 sample buffer size means that a single ©FlexRadio Systems...
  • Page 88: Sample Rate

    The sound card output voltage is the measured single channel AC voltage on the sound card Line Output when running the test. To run the test, first unplug the To Line Out cable from the SDR-1000 enclosure. Click the Test button to begin sending the full range signal. Use an AC voltmeter to measure the voltage between the connector tip and the connector ground.
  • Page 89: Sound Card Setup Details

    Receive: Selects the audio line to be used in receive mode. This is typically Line In or Analog Mix.  Transmit: Selects the audio line to be used in transmit mode. This is typically Microphone.  [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 90: Vac Sub-Tab

    Similarly, use the TX control to adjust the volume of audio coming from third party applications. Use this control instead of the MIC control on the front panel to calibrate transmit (adjust for 0 dB on the ALC meter). ©FlexRadio Systems...
  • Page 91: Auto Enable

    SSB/AM/FM without having to change this control to enable/disable VAC. Display Tab Figure 72: Setup Form - Display Tab [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 92: Spectrum Grid

    Note that this is a good control to reduce if you are running on a slower machine to save CPU cycles. Raising this value will give faster updates at the cost of CPU load. Lowering the value will slow the display down. ©FlexRadio Systems...
  • Page 93: Waterfall

    High Color: Color used if the signal level is at or above the High Level.  Mid Color: Color used if the signal level is exactly between the Low and High Levels.  [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 94: Multimeter

    This control sets the phase resolution in number of points displayed per 360°. Scope Time Base Figure 78: Scope Time Base This control adjusts the time base in ms (horizontal time scale) of the Scope Display. Averaging Figure 79: Display Averaging ©FlexRadio Systems...
  • Page 95: Polyphase Fft

    Histogram). Expect to see an up to 4 times narrower area of the displayed “spike” of a tone, especially when the displayed frequency span is relatively large in comparison. DSP Tab Options Sub-Tab Figure 81: Setup Form - DSP Tab, Options Sub-Tab [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 96: Noise Reduction

    Block LMS: We have implemented a fast Block LMS (least means square) routine. This routine is  faster than the original routine, gives more taps in the filter, and will work on I/Q signals, which enables BIN (binaural audio) to remain available. Automatic Notch Filter Figure 83: Automatic Notch Filter Controls ©FlexRadio Systems...
  • Page 97: Buffer Size

    Noise Blanker 2 provides a much cleaner reconstruction of the signal since the signal is more likely to look like the mean. For this reason, the Noise Blanker 2 threshold should always be about four or five less than the Noise Blanker threshold. ©FlexRadio Systems...
  • Page 98: Noise Blanker 2

    Rectangular: This means the data has no window applied. No shaping is applied to the incoming  signal. As a result, you will have the greatest sensitivity in the power spectrum and the greatest bleed through or interference with adjacent bins. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 99 Notice that at the left and the right end, we have forced the continuity by applying this tapering function. This continuous move to zero at the endpoints mitigates the “key-click” phenomenon that would otherwise result from the boxcar or rectangular window. ©FlexRadio Systems...
  • Page 100 They sometimes perform better for a particular application and some experimentation on the users part should be undertaken to find the window that gives the most pleasing display to you. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 101: Image Reject Sub-Tab

    I and Q channels are constant across all bands and assumes that the audio channel is linear across the sound card bandwidth. This works extremely well in practice. ©FlexRadio Systems...
  • Page 102: Transmit Rejection

    The image rejection will only work in an asymmetric voice mode (SSB). In a symmetric voice mode, like AM, SAM, and FMN any small amount of image problem will likely be covered up. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 103: Keyer Sub-Tab

    The display will continue to read the actual carrier frequency (if the radio is calibrated) but the software will provide for an offset to get the desired CW tone. This pitch will determine the automated tuning frequency using the display and mouse “click tune” functions. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 104: Connections

    Primary: Select the connection to be used for the primary connection. Selecting “SDR” allows use  of the jack on the back of the SDR-1000. Secondary: Select the connection to be used for the secondary connection. Selecting CAT will ...
  • Page 105: Signal Shaping

     back to receive. The smallest possible setting is 150 ms and it is recommended that this be set larger than 250ms. The SDR-1000 is not a QSK radio. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 106: Agc/Alc Sub-Tab

    AGC control on the front panel must be set to Custom. Decay (ms): This sets the time constant for the decay for the AGC. When a signal gets weaker, this  determines how quickly the AGC will respond to the need for increased gain. ©FlexRadio Systems...
  • Page 107: Leveler

    The Compressor and Compander (CMP and CPDR on front console (mode specific – phone) and on the Setup Form-Transmit Tab) work very well with the ALC to increase average power without overdrive. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 108: Transmit Tab

    Tune Power: Sets the power in Watts to be used whenever the TUN (Tune) function is used on the  front console (sets the Drive control). Changes made to the Drive level while TUN is active will be reflected in this control. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 109: Tx Profiles

    High: Controls the high cut of the Transmit Filter.  Low: Controls the low cut of the Transmit Filter.  Note: You will receive a “good practice” warning if the transmit filter bandwidth exceeds 3kHz. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 110: Noise Gate

    2. With the noise gate adjusted, speak into the microphone and verify that your voice sounds as natural as possible. Figure 99: VOX Enabled: Enables/Disables the VOX operation.  Sensitivity: The threshold above which the software automatically switches to transmit mode. Use  this in combination with the Noise Gate for best results. ©FlexRadio Systems...
  • Page 111: Tx Monitor

    In other words, how much are we pushing the signal up at small magnitudes. As the magnitude of the input signal goes up, less gain is applied and the fall-off of the gain is exponential in its decay. With the goal of introducing ©FlexRadio Systems...
  • Page 112: Am Carrier Level

    80 would yield roughly 16W when Drive is set to 100. This is useful as it allows the modulation to appear much stronger due to the weaker carrier. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 113: Pa Settings Tab

    Those without dummy loads should simply enter the values shipped with the unit. Reset: this button is included to reset all of the values to 48.0dB (low power output).  [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 114: Ext. Ctrl Tab

    For example, if you check the 2 and 4 boxes on the 20m band on receive, those two pins will go high when in receive mode on that band. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 115: Appearance Tab

    These controls change the appearance of all the display types, where relevant. Figure 106: Overall Display Appearance Controls Background: The background color for the display.  Grid: The color of the grid in display types where a grid is necessary.  ©FlexRadio Systems...
  • Page 116: Cursor/Peak Readout

    TX Filter Color: The color of the TX filter-edges.  SUB RX Zero Line: The color of the 0 Hz line of the Sub RX Filter.  Band Edge: The color of the lines marking the edge of an Amateur band.  ©FlexRadio Systems...
  • Page 117: General Sub-Tab

    These controls change the appearance of the buttons and the VFOs. Figure 109: Setup Form-Appearance Tab, General Sub-Tab Button Selected: The color of buttons when they are in the selected state. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 118: Vfo

    Active: The color of the band information text when that VFO is active.  Out Of Band: The background color of the VFO band information when outside the amateur radio  bands. Background: The background color of the VFO band information when inside the amateur radio  bands. ©FlexRadio Systems...
  • Page 119: Meter Sub-Tab

    Edge displays an analog edge style meter. Digital Text: The color of the text of the digital meter.  Digital Background: The background color of the digital meter.  [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 120: Original Style

    High Color: The color of the high values of the edge meter’s scale.  Background: The background color of the edge meter.  Indicator: The color of the indicator in the edge meter.  [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 121: Keyboard Tab

    Band, Filter, Mode, RIT, or XIT up or down using the drop down controls in the respective sections. Note: Choosing any of the arrow keys will require using Alt + [arrow key]. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 122: Cat Control Tab

    N8VB’s vCOM virtual serial port software (see the Digital Operations section in the Operation Chapter), the possibilities for interaction with programs such as Ham Radio Deluxe (HRD), DXLab, N1MM Contest Logger, MixW and numerous other third-party software (aids) are realized. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 123: Cat Control

    Parity: Sets whether to send a parity bit.  Data: Sets how many data bits are sent with each byte.  Stop: Sets whether to send a stop bit.  [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 124: Ptt Control

    Port: The COM port used for the PTT signal.  RTS: Select this box to use the RTS line to engage PTT.  DTR: Select this box to use the DTR line to engage PTT.  [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 125: Test

    (the required CAT terminator) is entered, or when the “Enter” key is depressed, or when the “Execute” button is clicked. The CAT response will appear in the “CAT Response” text box.. Figure 119: CAT Command Tester Form [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 126: Tests Tab

    If you hear no audio or audio in both channels during this test, then you may have a problem with the cable going to the plug labeled “To Line Out” on the enclosure. ©FlexRadio Systems...
  • Page 127: Impulse Test

    When finished, set the signal type to “Off” to allow the SDR-1000 hardware to once again be used. [The rest of this page has been left blank intentionally]...
  • Page 128: Operating Forms

    Setup at the top left of the front console (see image below). For ease of reference, the numerical identifiers from the previous chapter on the Front Console are repeated in this chapter. Figure 121: Operating Form Identifiers [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 129: (29) Memory Form

    Clicking the OK button will save the information shown above into the memory database before closing the form. Clicking Cancel simply closes the form (the data is not saved). [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 130: Recall

    Recall: Click the Recall button to send the data in the memory to the front console (i.e.  restore a memory). You can also double-click on a row to accomplish this, although this method is less consistent. Select Close on Recall to close the Memory Form when clicking Recall. ©FlexRadio Systems...
  • Page 131: (30) Wave Form

    The Wave form allows the user to Record and Playback either the post-processed audio of the current station, or up to 192kHz bandwidth (as determined by the sampling rate of your sound card) of pre- processed IF (I and Q) “audio” from the SDR-1000. Playback Currently Playing: Displays the filename of the currently playing wave file.
  • Page 132: Playlist

    MIC control on the front console to calibrate transmit (adjust for 0 dB on the ALC meter). Record Options Figure 125: Wave Recording Options The Wave Record Options can be used to modify what is recorded in either receive or transmit modes. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 133: Receive

    160 Hz notch filter. This gives about 12 dB of suppression at 160 Hz and is enabled only if TX equalizer is turned on. This is very fast in that it uses the same FFT Overlap Save approach used by the main filters. ©FlexRadio Systems...
  • Page 134: (32) Xvtrs Form

    Begin Frequency (MHz): The lower frequency bound for the transverter.  End Frequency (MHz): The upper frequency bound for the transverter.  RX Gain (dB): Amount of gain to apply to the incoming signals to compensate for gain within the  transverter. ©FlexRadio Systems...
  • Page 135: (33) Cwx Form

    Speed WPM: This control lets you set the speed of the Morse code being sent. The speed is  computed by the standard PARIS method. The softness of the edges may be set by the RAMP ©FlexRadio Systems...
  • Page 136: Cwx Memories

    Six special combinations are preprogrammed, as shown in the table. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 137: Keyboard And Extended Controls

    Figure 129: Extended CWX Form Extended CWX Controls Keyboard area: the four-line text box at the bottom. Unsent characters are shown in black and sent  characters in gray. ©FlexRadio Systems...
  • Page 138 Of course, the Stop (Esc) button or the Esc key will do the same. PTT Delay: This control allows you to set the time delay between switching the radio to transmit  and the first key closure. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 139: Morse Definition Editor

    If you mess this file up too badly, simply close PowerSDR, delete morsedef.txt, and a clean, default copy will be created the next time you start. The editor makes simple changes relatively easy to do. ©FlexRadio Systems...
  • Page 140: Operation

    How to use the SDR-1000 in a typical operating environment. This chapter is intended to provide the user with a clear understanding of how the SDR-1000 should be used when performing basic operations such as Powering Up or making a voice transmission. We chose to use this section in this way in lieu of listing all of the features of the radio since the feature list would essentially repeat the information given in the three preceding chapters.
  • Page 141: Power-Up Procedure

    Power-Up Procedure The SDR-1000 is unique in that the software does not have a way to cut the 13.8V power to the hardware unit. For this reason, we recommend the following procedure to ensure that the radio starts in a stable, safe state on Power Up: 1.
  • Page 142: Tuning Methods

    When in the CW, AM, or FM modes, the VFO will tune the cursor frequency to the center of the filter pass band. In SSB modes, the VFO will tune to the carrier frequency for the sideband selected. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 143: Keyboard Keys

    USB Tuning Knob Both the Griffin PowerMate and the Contour Designs Shuttle Pro v2 can be used to tune the radio. See the FlexRadio Systems website for documents describing how to setup and use these controllers. [The rest of this page is intentionally left blank]...
  • Page 144: Voice Transmission Operation

    FMN). If something in this procedure is unclear, please contact us, as we would like this to be as simple as possible. Figure 131 Front Panel Controls Used for Basic Voice Operation. Please use the above figure to identify the controls referenced in the following step-by-step instruction. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 145 Press the Push-to-talk button on the microphone or click the MOX button (16) and speak into the microphone to transmit your voice. Release the Push-to-talk button or click the MOX button (16) to switch the transceiver back to receive. If you do not see modulation on the spectrum, please reference the Troubleshooting chapter below. ©FlexRadio Systems...
  • Page 146 (8) and the associated slider to increase the compression in 1dB steps. This must be done carefully and incrementally as adding too much compression can result in high levels of distortion. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 147: Cw Transmission Operation

    CWX-form or a third party program. For the latter, we will use MixW as an example. Figure 132: Front Panel Controls Used for CW Operation Please use the above figure to identify the controls referenced in the following step-by-step instruction. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 148: Initial Settings

    CAUTION: If not using the ATU and not using a 50 ohm dummy load, ensure the antenna presents a 50 ohm load with a low SWR or damage may occur to the SDR output transistor. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 149: Internal Keyer

    1. If you have your paddles or external keyer connected to a COM port, set the Primary Connection to this COM port. Set the Primary Connection to SDR if you have your paddles or external keyer connected to the SDR keyer input plug (see preceding Plug Pin-Outs chapter). ©FlexRadio Systems...
  • Page 150: External Keyer

    Paddle. If using an external keyer with a sidetone, check the Disable Monitor checkbox to avoid hearing the side tone from the internal keyer. The Semi Break In option allows the radio to be put into transmit mode simply with detection of keyer input. Set Delay to the amount of time between ©FlexRadio Systems...
  • Page 151: Cwx Form

    Tune to the desired frequency using one of the methods outlined in the Tuning Methods section above. Select either CWL or CWU (6) and proceed with the QSO. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 152: Third Party Program

    CAT Control TAB. This will open up two additional selection boxes. Set PTT Line to DTR and Key Line to RTS as shown above. 3. In MixW, click Configure on the Menu bar and then select TRCVR CAT/PTT to open the following screen. ©FlexRadio Systems...
  • Page 153 C H A P T E R Figure 136: MixW PTT & CAT 4. On the PTT & CAT Interface, click on the Details button to open the following form: [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 154 CW VFO readout. This also enables the VFO to remain constant when switching from CWL to CWU mode. Every effort possible is made to preserve a CW signal when switching between any SSB and CW modes. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 155: Digital Mode Operation

    Please use the above figure to identify the controls referenced in the following step-by-step instruction. For consistency we have used the same control identifiers as in the preceding Front Console chapter and for clarity we have left out any identifiers of controls not referenced. ©FlexRadio Systems...
  • Page 156 CAUTION: If not using the ATU and not using a 50 ohm dummy load, ensure that the antenna presents a 50 ohm load with a low SWR or damage may occur to the SDR output transistors. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 157 We will now focus on installing and setting up N8VB’s VCOM driver and VAC. We will then use MixW as an example on how to use these utilities to operate digital modes. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 158: Cat Control Setup

    Locate the file you just downloaded (N8VBvCOMSetup-226a.exe) and double-click to start the Windows installer. The following screen will appear. Figure 139: VCOM Installer Language Select your language of choice and click OK. The welcome screen appears. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 159 O P E R A T I O N C H A P T E R Figure 140: VCOM Installer Welcome Screen. Click the Next button to continue the driver installation. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 160 O P E R A T I O N C H A P T E R Figure 141: VCOM License Agreement. Review the License Agreement and click the I Agree button. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 161 O P E R A T I O N C H A P T E R Figure 142: VCOM Installer Component Selection. Select the components you wish to install and click the Next button. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 162 C H A P T E R Figure 143: VCOM Install Location Choose the folder in which to install the driver application in and click the Install button. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 163 Click the Finish button to complete the installation of VCOM. The virtual serial port driver will now be installed on your system. A Command Prompt window displaying status messages will open followed by the warning screen shown below. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 164: Configure The Vcom Port Pairs

    By default VCOM will install 4 COM port pairs. To view these pairs, to change the default or to remove the driver, locate and start the VCOMConfigurator application (Start→All Programs). Figure 146: VCOMConfigurator Application This will open the following screen. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 165 PowerSDR software. Start up the program and pull up the CAT Control Tab on the Setup Form. For the purpose of this example, we will use the COM6-COM16 pair. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 166: Configure Powersdr Cat Control

    Note 1: As more external applications follow Ham Radio Deluxe to incorporate the Flex Radio SDR-1000 with its extended set of CAT controls, the ID can be changed to SDR-1000. However, in the meantime it is more prudent to select the TS-2000.
  • Page 167: Configure Powersdr Keyer Connections

    CAT Control. Set PTT Line to DTR and Key Line to RTS. Note that CAT Control must be enabled (see the previous section) before this will work. Click OK. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 168: Virtual Sound Connection

    Select 2 Cables and click Set – the 2 cables appear in the lower half of the screen (see the figure above). For each cable in turn select 20 ms per interrupt and Async Mode and click Set. Do not close the Control Panel just yet. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 169: Setup Vac In Powersdr

    Each third party program has its own method of configuring CAT Control and selecting the COM port and the sound card. In the following, we will use MixW as an illustrative example. We will also discuss how to deal with digital programs that are only able to connect to the default sound device. ©FlexRadio Systems...
  • Page 170: Using Mixw With Powersdr

    Start MixW, which may be downloaded from http://www.mixw.net/. Figure 152: MixW Console First we will configure MixW to connect through the virtual COM port pair to PowerSDR. Click Configure on the Menu bar and then select TRCVR CAT/PTT to open the following screen. ©FlexRadio Systems...
  • Page 171 Figure 153: MixW PTT & CAT Configure the controls as shown above. MixW does not recognize the extended SDR-1000 CAT controls yet. Therefore we set it up as if PowerSDR were a Kenwood radio (In MixW All Kenwoods is the only option available when CAT is set to Kenwood).
  • Page 172 & CAT form respectively to accept the settings and close the forms. On the MixW front console, click again on Configure on the menu bar and this time select Sound device settings… to open the following form: [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 173 Exit MixW for now so we can illustrate the functioning of the virtual audio cables. Click the Standby/On button to turn PowerSDR on. When you do, the Virtual Audio Cable Control Panel should look like this: [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 174 Change the mode in MixW to CW. Click on the TX button on MixW’s main panel. It should key PowerSDR without generating a tone. Click RX in MixW and PowerSDR should return to receive. If you have entered your callsign in MixW, click on the CQ button. It should key the radio and produce Morse ©FlexRadio Systems...
  • Page 175: Programs Needing To Connect To The Default Sound Device

    Set up the Default device for Sound playback and Sound recording as shown above. (Midi playback is of no concern). Click Apply and then OK. If you now setup your digital program to select the default sound card, it will work with PowerSDR. ©FlexRadio Systems...
  • Page 176 You should keep the Total buffer (ms) as small as practicable to prevent long latency between the sound arriving at the virtual audio cable and it being played to the sound card. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 177: Atu (Antenna Tuning Unit) Operation

    Bypass will bypass the ATU. Memory will attempt to tune from memory and if no tuned setting is saved near the present frequency, the ATU will perform a full tuning cycle. Full will immediately perform a full tuning cycle, ignoring any previously saved settings. ©FlexRadio Systems...
  • Page 178 If you get an error message like the one shown below, the PowerSDR and the ATU are not communicating correctly. Please reference the Troubleshooting chapter below. Figure 161: ATU Error Message [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 179: Troubleshooting

    Chapter Troubleshooting This section is intended to be a collection of solutions to commonly seen problems with the SDR-1000. While this is not a comprehensive list of everything that could go wrong, there is a good chance that if you are having a problem, the solution may be here.
  • Page 180 You can verify the address using the following steps. Right Click on My Computer and select Properties to open the System Properties window. Figure 162: System Properties - General Click the Hardware Tab. ©FlexRadio Systems...
  • Page 181 T R O U B L E S H O O T I N G C H A P T E R Figure 163: System Properties – Hardware Click the Device Manager button. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 182 C H A P T E R Figure 164: Device Manager Expand the Ports menu. Right click on the device labeled LPT1 (or LPT2, etc if using an add-on card) and select Properties. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 183 T R O U B L E S H O O T I N G C H A P T E R Figure 165: LPT1 Properties - General Click on the Resources Tab. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 184: Relays Click, But I Have No Audio

    2. Audio cable connections. Check the To Line Out cable for contact and ensure that this is plugged correctly into the sound card. Reference the appropriate quick start guide for your sound card. You should be able to hear noise even without a radio connected. ©FlexRadio Systems...
  • Page 185 Select the Audio Tab and temporarily set the default playback and recording device to the sound card attached to the radio (note settings before changing so that you can return to these settings when finished testing). Then click the Sounds Tab. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 186 Audio Tab. Reference the Audio Tab, Sound Card Sub-Tab description in the Setup Form chapter above for more information. ©FlexRadio Systems...
  • Page 187: Relays Click And I Hear Static, But No Signals

    CPU resources in order to keep up with the audio, display, etc. Computer systems close to the minimum specification (1.5GHz) will have a hard time running other applications concurrently with the console without audio artifacts. While faster machines may be able to keep ©FlexRadio Systems...
  • Page 188: I Hear Signals, But Cannot Null The Image

    If needed, FlexRadio Systems sells a set of qualified cables. You can monitor the input levels by comparing the RX Meter ADC L and ADC R levels. If they are more than 1.0dB apart, then there is likely a cable problem.
  • Page 189: The Signals Are All Off Frequency

    Wiring problem. Double check the wiring for the Mic connector and/or the X2 PTT lines using the diagrams in the chapter on Plug Pinouts. Possible Software Causes: Disable PTT is checked. Check this setting on the General Tab, Options Sub-Tab of the Setup Form. ©FlexRadio Systems...
  • Page 190: The Receiver Works Great, But I Am Getting No Output Power

    If using a microphone connected to the front panel of the SDR-1000 enclosure, it is necessary to connect the plug on the back labeled To Mic In to the microphone port on the sound card (see quick start guide).
  • Page 191: I Am Getting Signal Reports That Indicate Echoing Or Distortion

    Possible Software Causes: TX Image Reject is set incorrectly. Try resetting the controls on the Setup Form - DSP Tab, Image Reject Sub-Tab to zero for both Gain and Phase. [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 192: I Am Getting An Error Message That Says, "Error Communicating With Atu

    Table 13: ATU LED SWR Indicators Indicator < 1.5 Steady Green 1.5 - 2.5 Flashing Green > 2.5 No Green For more information about the ATU, please reference the manual at: http://www.ldgelectronics.com/manuals/Z-100Manual.pdf [The rest of this page has been left blank intentionally] ©FlexRadio Systems...
  • Page 193: I Get An Error When I Try To Use My Usb Adapter That Says "Usb Device Not Found. (-1)

    Another solution is to use an Uninterrupted Power Supply (UPS) to filter the AC line on any components that are attached to the radio (computer, radio power supply, etc.). ©FlexRadio Systems...

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