Hello Jared,
I have not been following these threads very carefully, but the thought occurred to me wondering if your transmitter might have spurs when connected to the duplexer? It would be easy enough to check with a spectrum analyzer connected via a lossy T between the TX and duplexer, (if not already checked.)? I had just finished working on a Spectrum repeater that did have spurs close to the TX frequency, corrected by retuning each stage while watching the spur level drop until they disappeared.
John W1GPO
On 11/02/2022 8:19 AM Jared Smudde <computerwhiz02@...> wrote:
So last night, I measured the MTR at 0.4uV at the receiver port and 0.5uV at the duplexer antenna port.
I injected a signal into the receiver port of the MTR that had just barely had no noise and when I injected it through the duplexer into the repeater, there was noise present. It wasn't heavy noise but it still had noise on the signal.
