The traces were done before the Rigol lost it's calibration. Also, note the lack of symmetry in the traces. The valley should have symmetrical slopes on both sides. So, it is far from what I'd consider "decent..."
I had already moved marker 1 to the transmit frequency to determine the loss. I seem to remember it was about -5dB down, but my memory isn't what it used to be. Evidently it was much higher, probably -15dB
30 solid watts in,
ZERO watts at the antenna port. If I slightly detune the receiver side's reject I
can get about 6 watts out, but by then I've de-sensed the receiver considerably.
Using my Service Monitor receiver sensitivity at the antenna port is 0.28µv sinad, when connected to the duplexer's antenna port sensitivity is 1.86µv sinad.
For comparison, the Cellwave duplexer in my Bridgecom BCR-40U repeater allows 50 watts in, 40 watts out. The receiver's sensitivity is 0.28µv sinad.
I'm fixing to give this problem child one more pass at getting tuned, before I demote it to a door stop... :roll: