Always great information and help here!
I don’t have any experience with manually setting the signal channels but I’ll have to read up and learn about that, thanks tevek.
I did some shopping for a new cable. (Don’t tell my wife I bought the expensive choice!) I needed an HDMI cable with the type c mini for the DJI HD module end and a type D micro for the Avegant Glyph end.
I looked and looked for a cable with a 90 degree on the mini end but had no luck, there were plenty with the 90 degree on the micro end, and plenty of 90 degree adapters but I really wanted to go with a single cable to eliminate any adapter. I think my adapter was the biggest source of signal interference.
The cable I was originally using came with the Avengant Glyph and had a standard HDMI plug on one end and a micro on the other. The cable itself was kind of on the thin side. The adapter I was using was thick but the female socket for the standard HDMI plug wasn't deep enough to take the entire plug inside it's housing so some of the plug’s metal was exposed. Perhaps that is where most of the leak was?
I ended up going with a company called Lindy USA. It was pricey but compared to the price of replacing a Phantom it was cheap insurance.
High-Speed-HDMI® cable with Ethernet, Type C (Mini) / Type D (Micro), 1.5m
Thanks alokbhargava again for your suggestions. I will make sure to route the new cable away from the antennas.
Now if the spring and warm weather would only come quicker to Massachusetts!!