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The PSK transceiver project of DL-QRP-AG


Designed by DK1HE

Features:

  • - Allband possible by plug in band modules
  • - High dynamic Receiver with Diode Ringmixer(HPF505) PLUS Preselektor
  • - Rag Chew  Push Pull PA (max. output 10Watt)
  • - Power adjustable
  • - Frequency fine tuning (Window Shift) for growing frequency range
  • - S-Meter / Power meter connection
  • - Build in Soundcard interface Line-in / Mic-in fully decoupled
  • - COM-Interface for PTT
  • - all Ports decoupled from PC! AF decoupled by special AF Transformers, PTT decoupled by Optocoupler
  • - only few external wiring

PCB1: Signal Generator, RX-Trontendl, T/R Mixer, TXl incl. Low Pass Filter, T/R -Switching, PC-Interface with AF Transformers + Optocouplers. PTT, Voltage Regulators

PCB2: Bandmodul Band- Xtal, ;TX/RX Banpassfilters

PCB3: 9MHz-IF with 9 pole Monolitic Filter 2.4 kHzl, Demodulator, AGC-generator, S-Meter- / Pout-Amplifier, 9MHz-SSB-Exciter (USB only).

 Remark: PCB 3 is the same PCB we use for the high level 2m SSB/CW Transceiver. 

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