GB3WY 6m FM voice repeater (R50-9)
Thurs 5th Aug - It's been two weeks and I'm still waiting for the PA PCB and components to arrive.
Sun. 1st Aug - We visited the site today but unfortunately the farmer was behind schedule which meant the bulls were
still in the barn and we can't put the antenna up until they have been moooo'ved.
Thurs. 22nd July - Ordered the 10W PA PCB and components.
Sat. 17th July - This afternoon I finished wiring up the logic. The logic is mounted inside a diecast box with separate
leads connecting it to the receiver and transmitter. The problems with poor audio quality have been eliminated as well as the
CTCSS decoder chopping on low frequency speech peaks, the latter by designing a new high pass filter using
LTspice. The entire audio passband can now be swept without the CTCSS decoder
losing lock. So far it's taken about four weeks and most of my spare time to get this far. The next job is to build a separate
RF PA on a substantial heatsink so the transmitter will run cool.
15th June - The NoV was issued by OfCom on the 8th June 2010. That's 30 days from submission to license so thank you to those
involved in the process. Due to problems with the audio quality the repeater is currently undergoing a rebuild.
