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Contest Call LY5V
Lithuanian Amateur Radio Station
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Digi Interface for Icom IC-737AT

 I have some problems with my radio in Digi modes. Start to search Interface with galvanic isolation between PC and Radio Transceiver. Found schematic and adapt for my situation. 2 little PCB. In one is Audio Interfaces with Critchley 9000 (CR/0059) Isolation Transformers, in second PTT+CW interfaces with Optoisolators CNY17. I use COM2 port for Digi modes and CW. COM1 used for CAT functions. Radio is Icom IC-737AT.

First PCB is Audio Interface. 63x35mm PCB created with Sprint-Layout.

Second PCB is PTT an CW Interface via COM2 port, 63x35 mm PCB created with Sprint-Layout

Solar Data/Conditions

Last activities


Oct 26, 2013 - Call LY5V

105 QSO (LP, 20m band)

143 QSO points

Mult 58

Total: 8294

Software: CG Log 2.64.4b

IC737, Dipole (Inv. V), 7m Up Gr.

Club: Kaunas University of Technology Radio Club - Nemokamas lankytojų skaitliukas