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LNR FX-4A Instruction Manual

Qrp 17/20/30/40 meter cw/ssb transceiver
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Instruction Manual

LNR FX-4a
QRP 17/20/30/40 Meter
CW/SSB Transceiver
Thank you for purchasing the LNR FX-4a
17/20/30/40 Meter CW/SSB Transceiver.
This unit is designed as a small and lightweight transceiver
perfect for portable use.
We hope you find this transceiver as fun to use as we do.
Please follow the instructions carefully and you will find this
transceiver to be a powerful, yet user-friendly unit.

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  • Page 1: Instruction Manual

    Instruction Manual LNR FX-4a QRP 17/20/30/40 Meter CW/SSB Transceiver Thank you for purchasing the LNR FX-4a 17/20/30/40 Meter CW/SSB Transceiver. This unit is designed as a small and lightweight transceiver perfect for portable use. We hope you find this transceiver as fun to use as we do.
  • Page 2 FX-4A Specifications Sheet Transceiver Weight 15.5 oz. Current drain on Receive 250-270ma Current drain on Transmit 1200ma Receive/Transmit Bands 40M: 7.000.00-7.300.00 MHz 20M:14.000.00-12.350.00 MHz 30M:9.999.99-10.155.00 MHz 17M:18.068-18.168.00MHz Display Type LCD: 128 x 64 Transmitter Max Output Power 5 Watts CW & SSB...

  • Page 3: Important Instructions

     FX-4A purchase includes a microphone for SSB). Initial Set-Up 1. To Power UP, plug power cord to FX-4A. Center con- ductor is + Positive. 2. Slide power selector switch to ON. Display will signify version 3.6 and then normal VFO display.

  • Page 4: Memory Storage

    Tap M/V button to exit menu mode.  Memory Storage The FX-4A has 10 memory stores per each of the 4  bands. To access, TAP the M/V button. “CH 00” and Mode will be displayed in the top left corner of the display.

  • Page 5: Basic Operation

    Tap BAND button to desired frequency (ex. 40M, 30M,  20M, 17M). FX-4A has a VFO A and a VFO B. To toggle between VFO A and VFO B, Tap the A/B Button. Tap MODE button to toggle between CW, LSB, USB.
  • Page 6 NOTES The FX-4A has an RIT function; and is accessed by [PH]  W/R switch. RIT will be display left of screen above filter settings., Once in RIT mode there is two frequency’s displayed. Bottom is Original VFO setting while the Top (Large) numbers is the RIT setting.

  • Page 7: Ssb Operation

    SSB Operation FX-4A has Side Band or voice capability with a  2.6KHz filter built in. This is non-adjustable. The included clip-on microphone has a built-in  speaker mic. CW Operation FX-4A has Iambic A and B functionality. To change ...
  • Page 8 Menu Features [PH] BAND button until menu display appears. *CW Delay: 0.1Sec to 1.5Sec *CW Vol (Sidetone): 01 to 10 *CW Fre (Pitch): 0550Hz 1500 Hz *CW Mode: Auto = Paddle Manu= Straight/Bug *H-VWR-P: *Light: Delay 1Sec - 9Sec/ (Backlit Timer) Always Open *IF: Default - 0-0.700Hz...
  • Page 9 Menu Notes All settings are adjustable however certain settings are for informational use only should not be changed as this will affect selective and off frequency operation. The following settings should NOT be changed. No Set Point Change Required. R BFO: 8.999.300Hz T BFO: 9.000.000Hz USB BFO: 9.001.500Hz LSB BFO: 8.998.500Hz...
  • Page 10 500 mW into 8 ohms, from 9v supply DC Power: 5 to 13 VDC at less than 15 mA We hope you enjoy your new LNR FX-4A 17/20/30/40 Meter QRP Transceiver. For technical assistance, please contact us at information below: LNR Precision, Inc.

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