LNR LD5 DSP-SDR Quick Manual Manual
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LNR LD5 DSP-SDR Quick Manual Manual

Cw/ssb qrp transceiver
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LD5 – CW/SSB QRP Transceiver
SDR /DSP
© 2014
LNR Precision Par EndFedz Antennas and QRP Transceivers

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Summary of Contents for LNR LD5 DSP-SDR

  • Page 1 LD5 – CW/SSB QRP Transceiver SDR /DSP © 2014 LNR Precision Par EndFedz Antennas and QRP Transceivers...
  • Page 2 Functions that this unit performs are separate and switchable for reception / transmission. They are displayed on the screen display as RX / TX with symbols. The LD5 is capable of firmware update via USB port. See LNR web page for instructions. How to order: LNR Website www.LNRprecision.com...

  • Page 3: Block Diagram

    USB, LSB, CW, CW-R, DIGITAL DATA:CAT –USB jack : CW, PSK, RTTY, SSTV – 3.5mm jack Power 5W output in CW / SSB Frequency Stability +/- 3 ppm (Si570 defined) typical © 2014 LNR Precision Par EndFedz Antennas and QRP Transceivers...
  • Page 4 8 different filters – 4 of 4 for CW/ SSB - 1-3 factory presets – No.4 adjustable for CW/50- Filters 1000Hz/ and SSB/250-3.6KHz Compressor SSB 0-20dB SSB TX MUTE Enable= no monitor Disable= monitor Transmitter Input Power 10.5-13.8 VDC Output Power 3.5 – 8W © 2014 LNR Precision Par EndFedz Antennas and QRP Transceivers...
  • Page 5 –real voltage on display Two modes CW Select a hand key or a paddle Receiver Receive sensitivity 0.2uV Preamp Ant Preamp Spurious response rejection IMD3 -48Db/ 5W IMD5 -43dB -6 db © 2014 LNR Precision Par EndFedz Antennas and QRP Transceivers...
  • Page 6 Front panel indicators and functions © 2014 LNR Precision Par EndFedz Antennas and QRP Transceivers...
  • Page 7 Sequential pressing of the STEP button or the Tuning encoder steps through the tuning rate. STEP 1 bar- 1Hz 2 bars=10Hz 3 bars=100Hz 4 bars=1KHz tuning rate. ₣ LOCK Lock/unlock the tuning dial symbol appears to the left of the mode designation on LCD © 2014 LNR Precision Par EndFedz Antennas and QRP Transceivers...
  • Page 8 Press MEMO again To recall a stored memory channel; Press MEMO Use the VFO to dial up the desired memory location Memory Recall ꜛ Press the Up arrow Press Memo again © 2014 LNR Precision Par EndFedz Antennas and QRP Transceivers...

  • Page 9: Menu Settings

    GAIN TX DIG Setting from 1-9.8 using the VFO knob. This function controls the AF Gain in Digital mode SQUELCH Settings 0-100. A 0 (zero) setting essentially turns squelch off. © 2014 LNR Precision Par EndFedz Antennas and QRP Transceivers...
  • Page 10 © 2014 LNR Precision Par EndFedz Antennas and QRP Transceivers...

  • Page 11: Split Operation

    SET frequency on VFO A 14020.00 and on VFO B 14030.00 REMEMBER, first VFO chosen is an RX frequency: SPLIT OPERATION PUSH RIT button, and then follow RIT MODE : © 2014 LNR Precision Par EndFedz Antennas and QRP Transceivers...
  • Page 12 If you wish to reverse the frequency, exit RIT Mode and switch to VFO B, then push RIT and then VFO A. Notice the arrow shows pointing to the right On TX you will see this : © 2014 LNR Precision Par EndFedz Antennas and QRP Transceivers...
  • Page 13 SSB: Select Filter #4. Press F then Filter. Use the VFO knob to adjust the low end. Press RIT to adjust the High end. Pressing RIT again will toggle back to low end adjust. Press Filter when complete. SERVICE MODE – It is strongly recommended to contact LNR Support before entering service mode To enter Service Mode –...

  • Page 14: Basic Settings

    FILTER TX CW BELL SOUND Adjustment of Power – entries are shown from “Power TX”- First row on Display: TX ADC indications power “when all bands are equal in LEVEL TX power”. © 2014 LNR Precision Par EndFedz Antennas and QRP Transceivers...
  • Page 15 Regulation in mW from 10% to 100% LED MODE Mode for backlight LCD - constant or relight by pressing any button or rotating of tuning knob SSB MUTE Allows for monitoring transmitted SSB signal © 2014 LNR Precision Par EndFedz Antennas and QRP Transceivers...

  • Page 16: Digital Modes

    In order to operate digital mode or interface with computer, utilize the Line IN/OUT jack and cable. The radio has typical levels for audio signals similar to other amateur radios. © 2014 LNR Precision Par EndFedz Antennas and QRP Transceivers...
  • Page 17 9. Tune to 40M and store a memory location. When the 40M band is selected with the UP and DOWN arrows, use the Memory function to recall 160, 80 or 40M bands. © 2014 LNR Precision Par EndFedz Antennas and QRP Transceivers...
  • Page 18 TUNING BAR STEPS IN CW MODE PREAMP ENABLE NORMAL ATTENUATOR ENABLE EXAMPLE CW FILTER #1 EXAMPLE CW FILTER #4 KEYBOARD LOCKED NOISE REDUCTION= NOISE BLANKER= NOTCH FILTER= © 2014 LNR Precision Par EndFedz Antennas and QRP Transceivers...

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Ld5 sdr /dsp

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