As there are no local ATV signals for me to receive with my basic ATV equipment (from my home QTH) I thought it wise to gain some 13cms experience by getting active on 13cms SSB. I know there are one or two active people less than 50 Km away and maybe a beacon within range.
Rather than start from scratch I thought it best to go for a known and proven design. I have therefore bought from G3WDG (i.e. the RSGB Microwave Committee components service) the following basic modules required to get started: Transverter + 1088 LO + 1W PA
|This is inside my transverter (Oct 2003).|
Top left: WDG010 transverter module, lid removed
Ratsnest above relay is relay driver from +12v TX line
I have added an SMA socket on the LO module to provide a loose coupling from the output to a counter so that I can check its frequency.
I have also added a lid to the whole unit and applied paint not just to hide the mess but to keep the dust out and enable things to be placed on top! When I took the photo I noticed a dent in the lid so it is also providing protection from heavy objects.
Another addition to my 13cm equipment is a 6 Watt PA. I built it from a kit designed and produced by Philipp Prinz, DL2AM. (Beware; the instructions are only in German but otherwise an excellent kit).
So far I have virtually no test gear for these sort of frequencies; all I can report is that the PA looks nice, gets very hot (even on a big heatsink) and makes my signal considerably stronger. This new PA has to be shared between my ATV and SSB stations so I may build it into a case with a proposed sequencer and coax relay.