I assume the c2037 was ahead (closer to the antenna) of the ham rx of 144.61 on the duplexer on the bottom???? The notch cavity of that c2037 if set to the normal notch depth will add to the loss of the 144.39 signal because of the width of the notch and a bit of bridging loss of the pass can. ?The notch depth should be reduced to narrow the width of the notch. If I remember correctly, the notch should be adjusted to 15dB.?
