I have some problems with DDS made from Si570. When connect transmitter
DDS becomes unstable. I will need more time , or redesign DDS with AD9833.
Front panel:
First module - VFO (freq. oscillator) and transceiver control:
Receiver module with NE602 mixers and crystal BFO:
Audio:
Receiver modules:
RF Transmitter 0.5W:
Enclosure (120x95x40):
Tests:
First receive test:
SCHEMA (with 0.5W RF Power):
http://www.schematics.com/project/lz1dpn-cw3-swl-sw20-57798/
ALL SOURCES AND SCHEMATICS:
https://github.com/LZ1DPN/LZ1DPN-CW3/
73 ES MNI DX'es!LZ7DP
