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LNR LD-11 User Manual

Hf+6m dsp sdr qrp transceiver
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LD -11
HF + 6m DSP SDR
QRP Transceiver
USER Manual
(Preliminary) Ver. 1.0.1

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Summary of Contents for LNR LD-11

  • Page 1 LD -11 HF + 6m DSP SDR QRP Transceiver USER Manual (Preliminary) Ver. 1.0.1...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS 1. TABLE OF CONTENTS ...... 2 2. INTRODUCTION ...... 3 3. SPECIFICATIONS...... 4 4. ACCESSORY PACKAGE..... . . 7 5. PANEL CONTROLS & CONNECTIONS ... 8 5.1 FRONT PANEL...... 8 5.2 SIDE PANELS...... 10 6. OPERATION ....... 11 6.1 GENERAL OPERATION.... 11 6.2 RECEIVE OPERATION.... 13 6.3 TRANSMIT OPERATION .... 16 • GENERAL TX OPERATION ... 16 • MODE-SPECIFIC OPERATION.. 17 o SSB OPERATION .... 17 o CW OPERATION .... 18 o DIGITAL MODES OPERATION .. 19...

  • Page 3: Introduction

    IMPORTANT MESSAGE Operating an Amateur Radio Transmitter / Transceiver requires an Amateur Radio License in ALL Countries! Operating the LD-11 without a valid Amateur Radio License is punishable by law in ALL Countries. INTRODUCTION - - - - - - - - - - - - - - - - -...

  • Page 4: Specifications

    SPECIFICATIONS GENERAL TRANSCEIVER SPECIFICATIONS Technology Solid State SDR-DSP Direct Conversion 160, 80, 60, 40, 30, 20, 17, Frequencies / Bands 1.8 MHz to 54.0 MHz 15, 12, 10, 6m Modes AM, CW, DIGI, FM, LSB, USB CAT: USB2 (FTDI Chip) Digital Modes JST, PSK, RTTY, SSTV, etc.

  • Page 5: Transmitter Specifications

    TRANSMITTER SPECIFICATIONS (fold-back protection for Output Power 5 Watts (typical) / adjustable high SWR) Selectable: Output Power or Selectable: Numerical or TX Metering Bar Graph D.C. Voltage Numerical display Metering Adjustable Gain & Delay Compressor Adjustable 0-20dB SSB TX Mute Disable = Monitor / Enable = Mute Key Type Selectable: Automatic = Paddle / Manual = Hand-Key...

  • Page 6: Receiver Specifications

    RECEIVER SPECIFICATIONS Technology Solid State SDR-DSP Direct Conversion Sensitivity 0.2 uV With Preamp On Preamp +20 dB Attenuator -12 dB 160m, 80m, 60+40m, Pre-Filtering 7 LPF and 7 BPF (cascaded) 30+20m, 17+15m, 12+10m, 6m Spurious Response IMD3: -48 dB …Rejection Current Drain Backlight: ON / OFF Avg.

  • Page 7: Accessory Package

    ACCESSORY PACKAGE The LD11 ships with the following accessories: Microphone: An electret mic that USER MANUAL draws its power from the mic line (tip). /If you use a dynamic mic, you must CAT CABLE: This is a standard insert a 350 to 400 nF capacitor computer USB2 cable with type A plugs between YOUR mic capsule and this on both ends.

  • Page 8: Front Panel

    FRONT PANEL CONTROLS 1. VFO-TUNING / Multi Knob; Adjusts frequency in operation mode; Adjusts menu value in Menu mode. 2. AF Gain Control 3. Power ON/OFF 4. PRE/ATT – pushing button toggles through Preamp, Attenuation, or None places the transceiver in transmit (TX) mode.
  • Page 9 14. MEMO – Pushing this button The pictures (below) describe most enables storing recalling of the features which are displayed memory locations. on the LD-11 display. 15. VFO/PAN – Pushing this button toggles between VFO-A and VFO-B. LD11 [Preliminary] USER MANUAL Ver. 1.0 NOV 8, 2017...

  • Page 10: Side Panels

    SIDE PANEL CONNECTIONS Left Side Panel LINE IN/OUT: Used for connecting to external sound card interface. KEY: The LD-11 accepts either a accessories page for pinout. Audio Straight Key or Paddle. Both connect level is independent of volume control. to the 3-pole, 3.5 mm key jack.

  • Page 11: Operation

    • Turn the radio ON and observe the 2. Most software menu items have dial. The LD-11 logo should appear variable parameters that for 1 seconds, and then the radio adjustable with the VFO knob. For switches to operate mode.

  • Page 12: Display Backlight

    knob changes only the Receive the Transmit frequency, it does not frequency, it does not change the change the Receive frequency. Transmit frequency. The [delta] change in frequency You must be in TX mode to enable when rotating the VFO knob can be XIT.

  • Page 13: Receive Operation

    ADJUSTMENT bandwidth appears) • Rotate the VFO knob to adjust The LD-11 has 4 filters per mode in bandwidth (CW = wider, AM/CW/FM/SSB (F1, F2, F3, & F4). CCW = narrower). Changes are There is only one filter for DIGI mode heard in real-time, but not yet with a fixed bandwidth of 3.35 kHz.
  • Page 14 • Set the center frequency of the OTHER DSP OPTIONS passband for the CW filter in Menu Mode “Pitch CW”. Noise REDUCTION <NR>: The NR is used to help reduce the level of Push “MENU”, then using the UP received broadband noise.

  • Page 15: Transmit Operation

    The mode is selected in the Software Menu “Show TX”. AUDIO OPTIONS TRANSMIT DISPLAY METHOD: The AUDIO EQUALIZER: The received LD-11 can display the output power or audio adjusted three SWR on a Bar Graph or as a numerical frequency ranges: Low/Medium/High.
  • Page 16 SWR it is reduced to just Watt. switches to 14.155 MHz. When you release the PTT button it returns to SPLIT FREQUENCY OPERATION RX and 14.150 MHz. LD-11 SPLIT frequency To EXIT SPLIT, just push the [RIT] capability (i.e. transmit button while in RX Mode.

  • Page 17: Mode-Specific Operation

    See “Side Panel Connections” (and – GENERAL ADJUSTMENTS on pages 16 adjustments) on page 10. and 17. The LD-11 has several features for CW VOX-GAIN: The level of VOX gain is Mode. In order to enable transmitting adjusted in the Software “Voice VOX in CW, you must select a delay time in Level”.
  • Page 18 100 Hz off frequency. 3.5:1, 4:1, and 4.5:1. • Reverse CW Key –This feature CW KEY SELECTION: The LD-11 will enables the operator to quickly operate with a simple straight key, reverse the dit and dah sides of the external keyer, or using its own built-in paddle.
  • Page 19 MENU MODE SETTINGS Menu Mode in LD-11 is entered or exited simply by pressing the MENU button (the top right button) on the front panel. Here you can change the settings of many of the radio’s features and in most cases, monitor the changes as you are making them.
  • Page 20 When the noise blanker (NB) is activated by pushing "F" + "DOWN/NB", this adjusts the blanking. 4 is maximum blanking and 12 is minimum blanking. Noise Blanker Set this value as high as possible while blanking is still effective. This minimizes audio distortion. You can listen to the changes in real-time as you adjust.
  • Page 21 Adjusts RX Audio Equalizer in 3 ranges, 'LOW' Frequencies, 'MEDium' Frequencies, and 'HIGH' 22 EQ RX Frequencies in steps from 1 (deemphasize) to 10 (maximum emphasis). Toggle between the 3 ranges by pressing the RIT/XIT button on the front panel. Adjusts SSB/CW the squelch sensitivity level for all 23 Squelch modes except FM from 0 to 100.

  • Page 22: Service Mode

    =============================================== SERVICE MODE Use the accompanying description, which is step-by-step for setting up in service mode LNR Precision, Inc. Please contact BEFORE entering Service Mode =============================================== SERVICE MODE is a special maintenance mode where additional parameters may be adjusted. It is used for presetting general and unit-specific values of the radio.
  • Page 23 ALWAYS EXIT SERVICE MODE AS SOON AS YOU HAVE FINISHED MAKING CHANGES TO THE MENU ITEMS. This helps avoid making accidental changes to menu items. SERVICE MODE Continued: DO NOT TOUCH ANTHING in here unless you are 100% sure that you know what you are doing.

  • Page 24: Menu Items

    SERVICE MODE DESCRIPTION / COMMENTS MENU ITEMS Virtual gap frequency from 5006 to 10013 Hz. IF DSP Recommended to use low-frequency virtual IF. No need to ever change this value. DO NOT TOUCH IT. V PWR Adjustment of displayed voltage For correcting the VFO frequency.
  • Page 25 – switched with STEP. DO NOT TOUCH IT. In the rare event that you manage to blow out some or all of the factory presets, LNR Precision, Inc. please contact . The general and unique parameters of your specific radio (by serial number) must be re-entered manually.

  • Page 26: Index

    INDEX ccessory Package: 7. Fuse: 4, 7. RI T: 9, 11, 12, 13, 14, 15, 16, 17, 22. ACE: See Notch Filter; 15. ambic Mode: 5, 19, 20. RT TY: 14, 19. AF Gain: 8, 22. Introduction: 3. idetone: 10, 18, 20. AGC: 3, 15, 21.
  • Page 27 LNR Precision, Inc. 1954 N Fayetteville, St., Asheboro, NC 27203 Phone 336-672-1818 or cell 336 848-2743 The LD-11 Concept and Design were created by LZ2TU, RA9YTJ, & LZ1JY MADE IN EUROPE LD11 [Preliminary] USER MANUAL Ver. 1.0 NOV 8, 2017...

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