Saturday, January 23, 2016

Wiring modules

The cw/multi function board has been build in. Most connections to other modules are made.
Now I have:
  • CW Sidetone,
  • PTT switch
  • TX/RX are displayed on the display.
  • S meter circuit works although I have a used a led as S indicator. The brighter it is the stronger the signal strength.
  • CW semi break in
The circuit to disable the bfo while transmitting CW has been made but is not wired to the modules.
Without this functionality the suppressed bfo out of the mixer would be present in the output signal.

Receiver is ready it seems to work fine. A better speaker would improve audio quality though. I may replace the small speaker by a bigger one. I could also make a connection for an external speaker.

Things to do:
  • Make the power amplifier including ALC and low pass filter
  • Make a CW unit to be able to TX in CW mode.
  • Make a better audio filter for CW and SSB

No comments:

Post a Comment