On Mon, Jun 10, 2024 at 05:45 AM, Spencer WD4AWD wrote:
I reflowed both pads and now there is continuity between D510 and D513 cathodes and Q511 drain.? I performed a LPF sweep and now the 15/17m bands look correct!? Breakthrough!
Spencer, you made a big step forward. I'm sure you will resolve the remaining issues.
However, the high SWR problem remains
The SWR sweeps are also not so good. For both the
SWR measurement and the
LPF sweep
T507 and the parts around are important.
Please check the solders (remember L513) and construction of T507. I will search for an older discussion related to T507 and some expected voltages and send you the link soon.
73, Ludwig
