Sounds like the PSU is the problem.
Are you using something simple like a 5v regulator to power it ?
If so attached a voltmeter scross it under no load and then
observe the voltage whilst putting your finger on the regulators
metal case / tab.
If you see even a minor variation like 10mv then you've got a
decoupling problem and the regulator won't perform properly.
What exactly is the PSU ?
73 de Andy
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--- In QRPLabs@..., "john349624" <g4pir.john@...> wrote:
Frame = 10 start = 0
All gnd's are common
PSU Set at 4.9v
TX 14.097100
Output 9VPP
After tx cycle output drops to 2vpp.
If I go into menu between tx cycle then output drops to 0.
Same on all modes.
so is it firmware ? or I'll try again tomorrow with it boxed up.
John.
