Hi Evan,
Thanks for your help. We are making progress. Should have thought to use the dummy load, plot shapes are now sensible.
Reflowed all the filter toroids and confirmed voltages on selection diodes are correct for each band.
20 and 40 now look fine, but 30m is still pretty weak, -11 db, see attached.
I've also attached my band configuration. Since 20 and 30 share LPF 2 and 20 is fine, that suggests LPF 2 is ok. But BPF 2 is unique to 30 so I'm thinking L12 is still bad, but I've reflowed it, and C28-31, twice now. IC3? perhaps??
73
