Unfortunately the beacon issues coincided with me having an accident so I had to repair myself before tackling the beacon.
There were a number of minor issues with loss of gain from MMIC
amplifiers reducing the drive levels but new chips restored the
correct levels. What took some time was an intermittent issue
traced to a 3 dB attenuator that would be OK one minute and then
have a 30 dB loss the next so a new unit solved the issue.
On 05/03/2021 14:12, John Fell wrote: