Preparing for SAC 2015
This weekend I started preparing for SAC (Scandinavian Activity Contest) that will take place next weekend (CW) and the SSB part in october. When I have been running SO2R with the MK2R+ SO2R box from Microham there has been a problem with a ground loop between the LF from both transceivers. So this weekend I spent some time going throgh my junk boxes for some audio transformers. I found 2 pairs of 600 ohm audio transformers, took them out of their plastic casings and made a new HF proof one out of PCB board. Perhaps ugly but it works, no one will see it anyway since it is hidden.:)
Now the audio coming from the SO2R box is perfectly clear and without annoying "hum". Still have some stuff to do during next week. Beverage boxes need to go back into the woods after thuder season and an antenna needs some repairs. Hopefully I will get everything running before the weekend !