Hello, I have seen this type of issue when the polarities are mismatched between antenna and radio, or when the frequencies are configured on the wrong radios (Hi on Lo and vice versa). However, it appears that you have double-checked that the Hi radio has the correct frequency assignments and that the polarities match. I would also double-check any waveguide or mediation kit alignments/integrity.
Another gotcha could be the actual part numbers of the radios being used. Ensure that the frequencies and channel sizes being used fit within the range printed on the side of the unit (not just the center frequency, but the whole channel).
Much less common, but still possible is a bad antenna. I would perform an RF loopback test to ensure that the radio is operating correct. If the loopback test is good, it might be worthwhile to try a different antenna.
I don't believe that the omni's would be causing a signal degrade issue and any interference would manifest as high MSE. Ideal MSE would be between -37 and -42dBm.
If the hardware checks out and the polarities are correct, I would open a support ticket. They will ask for the LINKPlanner file and unit info off of the devices. I would highly recommend putting together a LINKPlanner file for this link, at a minimum to double-check part numbers, and the unit info will contain the configuration and logs.
- PTP 820Unit Info.pdf (223 KB)