LDG AT-600ProII Operation Manual
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LDG AT-600ProII Operation Manual

600w automatic antenna tuner
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AT-600PROII OPERATIONS MANUAL
MANUAL REV A
LDG AT-600ProII
600W Automatic
Antenna Tuner
LDG Electronics
1445 Parran Road
St. Leonard MD 20685-2903 USA
Phone: 410-586-2177
Fax: 410-586-8475
ldg@ldgelectronics.com
www.ldgelectronics.com
PAGE 1

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  • Page 1 AT-600PROII OPERATIONS MANUAL MANUAL REV A LDG AT-600ProII 600W Automatic Antenna Tuner LDG Electronics 1445 Parran Road St. Leonard MD 20685-2903 USA Phone: 410-586-2177 Fax: 410-586-8475 ldg@ldgelectronics.com www.ldgelectronics.com PAGE 1...

  • Page 2: Table Of Contents

    Manual Memory Store Status Check Application Notes Mobile Operation Internally Generated RF Noise MARS/CAP Coverage Operation with LDG Electronics M-600 External Meter Tuning Hints Theory of Operation Some basic ideas about impedance Transmitters, transmission lines, antennas, and impedance The LDG AT-600ProII...

  • Page 3: Introduction

    The AT-600ProII is designed to handle 600 watts of output power, and is ideal for use with small outboard linear amplifiers rated up to 600 watts, or even newer high power transceivers.

  • Page 4: Specifications

    750 watts. Power levels that significantly exceed specifications will definitely damage or destroy your AT-600ProII. If the tuner fails during overload, it could also damage your transmitter, amplifier, or transceiver. Be sure to observe the specified power limitations.

  • Page 5: Getting To Know Your At-600Proii

    FUNC button before pressing any other button will activate that button’s secondary function. The power button on the AT-600ProII actually places the tuner in bypass and enters a low- power sleep mode, rather than turning the unit fully off. Press the Power button for 1 second to turn off, or momentarily to turn on.

  • Page 6: Back Panel

    • Tx: Connect a 50 ohm jumper coax from this jack to the ANT jack on the rear of the amplifier. • Ext. Meter: Connect the LDG M-600 External Meter to this jack, or use for remote control via PC.

  • Page 7: Installation

    Connect the HF antenna jack on the amplifier to the TX jack on the back of the AT-600ProII, using a 50 ohm coax cable rated 600 watts or higher.
  • Page 8 PAGE 8...
  • Page 9 Note: Optional Y-ACC cable has a red plug on the radio end of the cable, and a black plug on the tuner end. PAGE 9...

  • Page 10: Basic Operation

    Function mode, which is done by pressing and releasing the Func button, and then pressing the desired button to activate the particular configuration option while in function mode. To confirm entry into Function mode, the AT-600ProII will flash an “up arrow” on the LED display after the Func button is pressed.
  • Page 11 Function mode times-out after a few seconds if no other button is pushed. Alternately, function mode can be cancelled by pressing the Func button again. In either case, when Function mode is exited, a “down arrow” is displayed on the LED display: Peak Mode On/Off: The Power display on the LED bargraph can display either average power or peak forward power, in watts.
  • Page 12 To toggle between these two scales, press Func -> L Up. The LED marked “50” or “600” will light momentarily to indicate the newly selected scale. Automatic Tuning Mode: The AT-600ProII may be set for either semi-automatic tuning or fully automatic tuning. In semi-automatic tuning mode, a tuning cycle will not begin unless specifically requested by pressing the Tune button.

  • Page 13: Transmitting And Receiving

    The default value of SWR threshold is 2.0:1. The following example shows setting the SWR threshold to 1.7:1. Antenna Selection: Press the Ant button momentarily to toggle which antenna port is currently active. The ANT 2 LED will light when Antenna 2 is selected, and is off when Antenna 1 is selected.

  • Page 14: Tuning

    2 Note that, while the AT-600ProII employs software that prevents it from tuning while transmitting over 150 watts, it is still a good idea to bypass your amplifier while tuning, as further protection against damage to the tuner.

  • Page 15: Manual Full Tune

    25 watts or less before tuning. To explicitly initiate a full tuning cycle, press and hold the Tune button on the AT-600ProII front panel for more than 2.5 seconds. The LEDs will display the following pattern to confirm a full tuning cycle is requested: If you are using one of the optional radio interface cables, the radio will automatically reduce power, switch to CW mode, and begin transmitting while the full tuning cycle is in progress.

  • Page 16: Bypass Mode

    You re-enable Full Automatic Tuning mode. b.) You manually increment or decrement the inductor / capacitor settings. If an ICOM radio and interface cable is used, the AT-600ProII may also be bypassed by pressing the TUNER/CALL button momentarily. On some models of ICOM radios, changing bands will also automatically bypass the tuner.
  • Page 17 Additionally, if the forward power exceeds the maximum value selected for the meter scale, the PWR LEDs will blink an over-range condition. The four right-most LEDs of the PWR bargraph will cycle during over-range. PAGE 17...

  • Page 18: Advanced Operation

    In some rare cases, after tuning, it may be desirable to adjust the inductance and capacitance settings that the AT-600ProII came up with during the tuning process. This is more likely to occur when attempting to tune an antenna far from its resonant frequency.

  • Page 19: Status Check

    SWR threshold value. While holding the Func button, the bargraph display will show the following pattern, to indicate that the AT-600ProII is waiting for you to push a button to check its status: The following status items can be checked:...

  • Page 20: Application Notes

    APPLICATION NOTES Mobile Operation The AT-600ProII is perfectly suited to mobile operation. It can be installed under the dashboard along with the transceiver, or mounted remotely. The only requirements are that the tuner remains dry, and that the power source is fused appropriately. A 2 amp “fast blow” fuse is recommended.

  • Page 21: Operation With Ldg Electronics M-600 External Meter

    Operation with LDG Electronics M-600 External Meter The AT-600ProII has an external meter jack on the rear panel, which supports use of the M- 600 External Meter. The M-600 External Meter is an optional accessory for the AT-600ProII that provides a large analog meter movement, and can be used to display Forward Power, Reflected Power, and SWR.

  • Page 22: Transmitters, Transmission Lines, Antennas, And Impedance

    In simple DC circuits, the wire resists current flow, converting some of it into heat. The relationship between voltage, current, and resistance is described by the elegant and well-known “Ohm’s Law”, named for Georg Simon Ohm of Germany, who first discovered the principle in 1826.
  • Page 23 Simple tuners use variable capacitors inductors; operator adjusts them by hand while observing reflected power on the SWR meter until a minimum SWR is reached. The LDG Electronics AT-600ProII automates this process. No tuner will fix a bad antenna.

  • Page 24: The Ldg At-600Proii

    This allows the AT-600ProII to handle loads that are either greater than or less than 50 ohms. All relays are sized to carry 600 watts PEP.

  • Page 25: A Word About Tuning Etiquette

    Be sure to use a vacant frequency when tuning. With today’s crowded ham bands, this is often difficult. However, causing interference to other hams should be avoided as much as possible. The AT-600ProII’s very short tuning cycle, as little as a fraction of a second, minimizes the impact of tuning transmissions.

  • Page 26: Quick Reference

    QUICK REFERENCE Button Primary Func -> Button Status Check Function (Func Hold + Button) Full Tune (Long Press) Memory Tune Manually Store Display Relay (Medium Press) Tuning Tune Settings Parameters Bypass (Short Press) Toggle Display Toggle Antenna High/Low High/Low Selection Impedance Impedance Increase...

  • Page 27: Technical Support

    Ask your shipper for a tracking number or a delivery verification receipt. This way you know the product arrived safely at LDG. Be sure to give us your email address so our shipper can alert PAGE 27...

  • Page 28: Product Feedback

    (preferred) tell us how you used the product and how well it worked in your application. Send along a photo or even a schematic or drawing to illustrate your narrative. We like to share your comments with our staff, our dealers, and even other customers at the LDG website: http://www.ldgelectronics.com/...
  • Page 29 M1000 METER PROTOCOL SPECIFICATION MANUAL REV A LDG Electronics External Meter Serial Communications Protocol Specification LDG Electronics 1445 Parran Road St. Leonard MD 20685-2903 USA Phone: 410-586-2177 Fax: 410-586-8475 ldg@ldgelectronics.com www.ldgelectronics.com PAGE 1...
  • Page 30 Table Of Contents Introduction Hardware Interface Software Protocol Timing Software Product Feedback PAGE 2...

  • Page 31: Introduction

    9VDC) first. Typically, a Maxim MAX232 or Exar SP232 level conversion chip can be used. A 1 Additional LDG Electronics tuners may include this feature in the future. This document serves to describe the protocol used in all 4-pin meter cable equipped LDG tuners.

  • Page 32: Software Protocol

    PC interface. LDG Electronics does not supply this interface, but may do so in the future. The schematic below is an example of how to build a TTL to RS232 interface for communicating with the AT1000ProII via its external meter jack.
  • Page 33 Upon being woken up, and having received a valid command byte, the tuner, in return, will respond with a single byte acknowledgement of the command when the command is complete, with the exception of the SYNC command, which sends a multi-byte synchronization string. The list of commands and their responses is given in the following table.

  • Page 34: Timing

    (preferred) tell us how you used the product and how well it worked in your application. Send along a photo or even a schematic or drawing to illustrate your narrative. We like to share your comments with our staff, our dealers, and even other customers at the LDG website: http://www.ldgelectronics.com/...
  • Page 35 Future Technology Devices International Ltd TTL-232R TTL to USB Serial Converter Range of Cables Datasheet Document Reference No.: FT_000054 Version 2.03 Issue Date: 2016-05-23 Future Technology Devices International Limited (FTDI) Unit 1, 2 Seaward Place, Glasgow G41 1HH, United Kingdom Tel.: +44 (0) 141 429 2777 Fax: + 44 (0) 141 429 2758 E-Mail (Support):...

  • Page 36: Figure 1.1 Using The Ttl-232R Cable

    Document Reference No.: FT_000054 TTL-232R TTL TO USB SERIAL CONVERTER RANGE OF CABLES Datasheet Version 2.03 Clearance No.: FTDI# 53 Description The TTL-232R cables are a family of USB to TTL serial UART converter cables incorporating FTDI’s FT232RQ USB to Serial UART interface IC device which handles all the USB signalling and protocols. The cables provide a fast, simple way to connect devices with a TTL level serial interface to USB.

  • Page 37: Table 1.1 Ttl-232R Cables Descriptions And Part Numbers

    Document Reference No.: FT_000054 TTL-232R TTL TO USB SERIAL CONVERTER RANGE OF CABLES Datasheet Version 2.03 Clearance No.: FTDI# 53 Available Cables and Part Numbers The following Table 1.1 gives details of the available TTL-232R cables. Part Number Description End Connector* Cable details 6 core, UL2464 USB to UART cable with +5V TTL level...
  • Page 38 Document Reference No.: FT_000054 TTL-232R TTL TO USB SERIAL CONVERTER RANGE OF CABLES Datasheet Version 2.03 Clearance No.: FTDI# 53 Certifications FTDI TTL-232R range of cables are fully RoHs compliant as well as CE and FCC certified (with the exception of the TTL-232R-XX-WE cables which have not yet completed FCC and CE testing). USB Compliant The TTL-232R cables are fully compliant with the USB 2.0 specification.
  • Page 39 Document Reference No.: FT_000054 TTL-232R TTL TO USB SERIAL CONVERTER RANGE OF CABLES Datasheet Version 2.03 Clearance No.: FTDI# 53 Table of Contents Description ..................1 Available Cables and Part Numbers ............... 2 Certifications ....................3 USB Compliant ....................3 The TTL-232R cables are fully compliant with the USB 2.0 specification.
  • Page 40 Document Reference No.: FT_000054 TTL-232R TTL TO USB SERIAL CONVERTER RANGE OF CABLES Datasheet Version 2.03 Clearance No.: FTDI# 53 Appendix C - Revision History ............25 Copyright © Future Technology Devices International Limited...

  • Page 41: Driver Support

    Document Reference No.: FT_000054 TTL-232R TTL TO USB SERIAL CONVERTER RANGE OF CABLES Datasheet Version 2.03 Clearance No.: FTDI# 53 Typical Applications  USB to Serial TTL Level Converter  Replace MAX232 type level shifters allowing for direct connection of products to PC via USB ...

  • Page 42: Features

    Document Reference No.: FT_000054 TTL-232R TTL TO USB SERIAL CONVERTER RANGE OF CABLES Datasheet Version 2.03 Clearance No.: FTDI# 53 Features  TTL-232R Converter Cable provides a USB to  Support for FT232R FTDIChip-ID™ feature for TTL Serial interface with various end improved security.

  • Page 43: Features Of Ft232R Applicable Tottl-232R Cables

    Document Reference No.: FT_000054 TTL-232R TTL TO USB SERIAL CONVERTER RANGE OF CABLES Datasheet Version 2.03 Clearance No.: FTDI# 53 Features of FT232R applicable toTTL-232R Cables The TTL-232R cables use FTDI’s FT232RQ USB to serial IC device. This section summarises the key features of the FT232RQ which apply to the TTL-232R USB to serial TTL converter cables.
  • Page 44 Document Reference No.: FT_000054 TTL-232R TTL TO USB SERIAL CONVERTER RANGE OF CABLES Datasheet Version 2.03 Clearance No.: FTDI# 53 Appendix A - Cable EEPROM Configuration. A user area of the internal EEPROM is available to system designers to allow storing additional data. The internal EEPROM descriptors can be programmed in circuit, over USB without any additional voltage requirement.

  • Page 45: Ttl-232R-5V And Ttl-232R-3V3 Cables

    Document Reference No.: FT_000054 TTL-232R TTL TO USB SERIAL CONVERTER RANGE OF CABLES Datasheet Version 2.03 Clearance No.: FTDI# 53 TTL-232R-5V and TTL-232R-3V3 Cables The TTL-232R-5V and TTL-232R-3V3 cables are both terminated by a 6 way, 0.1”, Single-In-Line (SIL) connector. The difference between the two cables is that the TTL-232R-5V operates at +5V levels (signals and power supply) and the TTL-232R-3V3 operates at +3.3V levels (signals only, VCC= +5V).

  • Page 46: Ttl-232R-5V And Ttl-232R-3V3 Electrical Parameters

    Document Reference No.: FT_000054 TTL-232R TTL TO USB SERIAL CONVERTER RANGE OF CABLES Datasheet Version 2.03 Clearance No.: FTDI# 53 Header Pin Name Type Colour Description Number Output Orange Transmit Asynchronous Data output. Input Yellow Receive Asynchronous Data input. RTS# Output Green Request To Send Control Output / Handshake signal.

  • Page 47: Table 4.5 Ttl-232R-3V3 I/O Pin Characteristics

    Document Reference No.: FT_000054 TTL-232R TTL TO USB SERIAL CONVERTER RANGE OF CABLES Datasheet Version 2.03 Clearance No.: FTDI# 53 Parameter Description Minimum Typical Maximum Units Conditions Output Voltage High I source = 3mA Output Voltage Low I sink = 8mA Input Switching Threshold VHys Input Switching Hysteresis...

  • Page 48: Ttl-232R-5V-Aj And Ttl-232R-3V3-Aj

    Document Reference No.: FT_000054 TTL-232R TTL TO USB SERIAL CONVERTER RANGE OF CABLES Datasheet Version 2.03 Clearance No.: FTDI# 53 TTL-232R-5V-AJ and TTL-232R-3V3-AJ The TTL-232R-5V-AJ and TTL-232R-3V3-AJ cables are both terminated by a standard 3.5mm Audio Jack (AJ) connector. The difference between the two cables is that the TTL-232R-5V-AJ operates at +5V levels (signals and power supply) and the TTL-232R-3V3-AJ operates at +3.3V levels (signals and power supply).

  • Page 49: Ttl-232R-5V-Aj And Ttl-232R-3V3-Aj Cable Signal Descriptions

    Document Reference No.: FT_000054 TTL-232R TTL TO USB SERIAL CONVERTER RANGE OF CABLES Datasheet Version 2.03 Clearance No.: FTDI# 53 TTL-232R-5V-AJ and TTL-232R-3V3-AJ Cable Signal Descriptions Header Pin Name Type Colour Description Number Black Transmit Asynchronous Data output. RING Input Brown Receive Asynchronous Data input.

  • Page 50: 5.3.2 Ttl-232R-3V3-Aj Electrical Parameters

    Document Reference No.: FT_000054 TTL-232R TTL TO USB SERIAL CONVERTER RANGE OF CABLES Datasheet Version 2.03 Clearance No.: FTDI# 53 5.3.2 TTL-232R-3V3-AJ Electrical Parameters Parameter Description Minimum Typical Maximum Units Conditions Must be less that 2.5mA Output Power Current during suspend. Operating Temperature Range Table 5.4 TTL-232R-3V3-AJ I/O Operating Parameters...

  • Page 51: Ttl-232R-5V-We And Ttl-232R-3V3-We Cables

    Document Reference No.: FT_000054 TTL-232R TTL TO USB SERIAL CONVERTER RANGE OF CABLES Datasheet Version 2.03 Clearance No.: FTDI# 53 TTL-232R-5V-WE and TTL-232R-3V3-WE Cables The TTL-232R-5V-WE and TTL-232R-3V3-WE cables are both un-terminated; they are bare and tinned wires. The difference between the two cables is that the TTL-232R-5V-WE operates at +5V levels (signals and power supply) and the TTL-232R-3V3-WE operates at +3.3V levels (signals only, VCC=+5V).

  • Page 52: 6.3.1 Ttl-232R-5V-We Electrical Parameters

    Document Reference No.: FT_000054 TTL-232R TTL TO USB SERIAL CONVERTER RANGE OF CABLES Datasheet Version 2.03 Clearance No.: FTDI# 53 6.3.1 TTL-232R-5V-WE Electrical Parameters Parameter Description Minimum Typical Maximum Units Conditions Dependant on the USB port Output Power Voltage 4.25 5.25 that the TTL-232R-5V-WE is connected to...

  • Page 53: Ttl-232R-3V3-2Mm Cables

    Document Reference No.: FT_000054 TTL-232R TTL TO USB SERIAL CONVERTER RANGE OF CABLES Datasheet Version 2.03 Clearance No.: FTDI# 53 TTL-232R-3V3-2mm Cables The TTL-232R-3V3-2mm cable is terminated by a 8 way, 2mm pitch, Single-In-Line (SIL) keyed connector. The TTL-232R-3V3-2mm operates at +3.3V levels (signals and power supply). These cables are primarily intended for interfacing the FTDI VDRIVE2 and VMUSIC2 modules.

  • Page 54: Ttl-232R-3V3-2Mm Cable Signal Descriptions

    Document Reference No.: FT_000054 TTL-232R TTL TO USB SERIAL CONVERTER RANGE OF CABLES Datasheet Version 2.03 Clearance No.: FTDI# 53 TTL-232R-3V3-2mm Cable Signal Descriptions Header Pin Name Type Colour Description Number Ring Indicator Control Input. When remote wake up is enabled taking RI# low (20ms active low pulse) can be Output Blue...

  • Page 55: Cable Pcb Circuit Schematic

    Document Reference No.: FT_000054 TTL-232R TTL TO USB SERIAL CONVERTER RANGE OF CABLES Datasheet Version 2.03 Clearance No.: FTDI# 53 Cable PCB Circuit Schematic The circuit schematic for the small internal electronic circuit board, utilising the FTDI FT232R, which is encapsulated into the USB connector end of the cable, is shown in Figure 8.1.

  • Page 56: Contact Information

    Document Reference No.: FT_000054 TTL-232R TTL TO USB SERIAL CONVERTER RANGE OF CABLES Datasheet Version 2.03 Clearance No.: FTDI# 53 Contact Information Branch Office – Tigard, Oregon, USA Head Office – Glasgow, UK Future Technology Devices International Limited Future Technology Devices International Limited (USA) Unit 1, 2 Seaward Place, Centurion Business Park 7130 SW Fir Loop...

  • Page 57: Appendix A - Cable Eeprom Configuration

    Document Reference No.: FT_000054 TTL-232R TTL TO USB SERIAL CONVERTER RANGE OF CABLES Datasheet Version 2.03 Clearance No.: FTDI# 53 Appendix A - Cable EEPROM Configuration Each TTL-232R cable is controlled by the FTDI FT232R IC. This FT232R device contains an EEPROM which contains the USB configuration descriptors for that device.
  • Page 58 Document Reference No.: FT_000054 TTL-232R TTL TO USB SERIAL CONVERTER RANGE OF CABLES Datasheet Version 2.03 Clearance No.: FTDI# 53 The internal EEPROM in the cable can be re-programmed over USB using the utility program FT_PROG. FT_PROG can be downloaded from the www.ftdichip.com. Version 2.8a or later is required for the FT232R chip.
  • Page 59 Document Reference No.: FT_000054 TTL-232R TTL TO USB SERIAL CONVERTER RANGE OF CABLES Datasheet Version 2.03 Clearance No.: FTDI# 53 Appendix B - List of Figures and Tables List of Figures Figure 1.1 Using the TTL-232R Cable ......................1 Figure 4.1 TTL-232R-5V and TTL-232R-3V3, 6 Way Header Pin Out ............10 Figure 4.2 TTL-232R-5V TTL-232R-3V3, 6 Way Header Mechanical Details ..........
  • Page 60 Document Reference No.: FT_000054 TTL-232R TTL TO USB SERIAL CONVERTER RANGE OF CABLES Datasheet Version 2.03 Clearance No.: FTDI# 53 Appendix C - Revision History Document Title: TTL to USB Serial Converter Range of Cables Document Reference No.: FT_000054 Clearance No.: FTDI# 53 Driver Page: http://www.ftdichip.com/FTDrivers.htm...
  • Page 61 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: FTDI TTL-232R-5V-WE TTL-232R-5V...
  • Page 62 General Purpose Relays PCB Relays SCHRACK Power PCB Relay RZL 1 pole 12/16 A, 1 form C (CO) or 1 form A (NO) contact DC coil 530 mW 5kV/10mm coil-contact, reinforced insulation Ambient temperature 70°C (special applications 85°C) Typical applications Household appliances, boiler control, timers, garage door F0305-A control...
  • Page 63 General Purpose Relays PCB Relays SCHRACK Power PCB Relay RZL (Continued) Dimensions 12 A/16A, pinning 3.5 mm S0557-AB 12A, 16 A, pinning 5 mm S0557-AA Recommended pcb hole for manual mounting: k1.3mm PCB layout / terminal assignment For automated mounting please ask for Bottom view on solder pins detailed drawing.
  • Page 64 General Purpose Relays PCB Relays SCHRACK Power PCB Relay RZL (Continued) Product code structure -L012 Typical product code Type RZ Power PCB Relay RZ Version Black Cover Version 3.5mm pinning, 12 A/16A 5mm double pinning, 16A Contact configuration 1A 1 form A (1 NO) contact 1C 1 form C (1 CO) contact Contact material AgNi 90/10...
  • Page 65 IGES 2D Drawing STEP 3D PDF Solder Profile UL Plastic File CofC RoHS Compliant CofC REACH Compliant Certificate of Origin Check Stock Request a Sample Send Us An Email Generated Part Number KMDLAX-3P-KPPSR Part Number Builder KMDLAX KPPSR MINI/CIRCULAR DINs: KMDLAX Series Contact Series Number...
  • Page 66 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Kycon KMDLAX-8P KMDLAX-4P KMDLAX-6P KMDLAX-3P KMDLAX-7P KMDLAX-5P KMDLAX-8P-KPPSR KMDLAX- 6P-KPPSR KMDLAX-7P-KPPSR KMDLAX-5P-KPPSR KMDLAX-4P-KPPSR KMDLAX-8P-G30 KMDLAX-H KMDLAX-F KMDLAX-I KMDLAX-C KMDLAX-3P-KPPSR...
  • Page 67 This is the next step in the evolution of the automatic antenna tuner St. Leonard MD, June 2019 – LDG is proud introduce the next step in the evolution of the automatic antenna tuner: PC control. With the addition of a low-cost USB cable, radio amateurs can control their AT-600ProII and AT-1000ProII tuners from their PCs, without any upgrades to the tuner.
  • Page 68 - add 10 ohm series resistors on switches to combat undershoot LED BAR2 LED BAR1 AT-600Pro FP Title: Date: LDG Electronics, Inc. 15 June 2009 1445 Parran Rd. Version: St. Leonard, MD 20685 Sheet Error : LDGlogo1.bmp file not found.
  • Page 69 .01uf .01uf .01uf .01uf Power Jack IND DN SW FIDUCIAL1 FIDUCIAL2 FIDUCIAL3 TUNE SW 661-MKA25VC101M (100uF 25V) 661-MKA25VC47RM (47uF 25V) LDG LOGO FUNCTION SW ANTENNA SW POWER SW FPCLOCK FPDATA FPSTROBE PWR LED ANT LED 74HC04 74C393 74C393 BYP LED...
  • Page 70 RFFREQ .01uf .01uf N100 0.1uF .01uf N3WDZ_LMV7219 PBR941 150k 0.1uF .01uf PBR941 0.1uF DIODE_1N4007 DIODE_1N4007 100k 4.7k .01uf .01uf 120 OHM CHOKE 120 OHM CHOKE TESTPOINT TESTPOINT TESTPOINT Title Size Number Revision Date: 5-Jun-2012 Sheet of File: C:\Contracting\LDG\AT600ProII\at600proii.Ddb Drawn By:...

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