I also see a bunch of birdies - I check the frequencies when I get a chance.
On the audio sweep curves I see a notch at about 2.2K the varies from run to run and band to band - I have no idea of the cause.
I think my transmit power has dropped from 4W to 2W that may of occurred with rev 9 firmware.? I see under diagnostics a Transmit voltage of 10v.? I don't recall any report under rev 7.? If rev 7 allowed full 12v then this change would account for the power drop.? I will switch back to rev 7 to check this when I get a chance.