The Power and PTT Board

To protect your mike to much current when you press the PTT switch a relay is activated. This relay activates power to either the receive (R) or transmit (T) power line. The power (P) line constantly carriers 12 Volts. The ground  (G) line is the common ground.

You can find the Board and Schematics including Eagle files here:

PWR + PTT Files

Welcome to LOKA20S

For those of you who only know me professionally, I'm also a ham. My call-sign is PH9Z. (pronounced: Papa Hotel Nine Zulu). I have a F(ull) license, which means I'm allowed to operate on all radio amateur bands.

On the blog I will keep you posted on the development of the LOKA20S transceiver. This is basically a bitx20 where I made separate print for each block.