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Antennas placed at the tear drop.
At this position UHF channel reception is fine.
VHF RF 12 gradually degraded over the last 6 months.
I can view alternate KNTV NBC 11.3 on RF 49 from Mt Allison San Jose.
B and C are open areas.
D is over the roof copper water pipe repair done 10 years ago.
Nearby houses do have roof solar systems. I would expect panel interference
to be greater during the day and less during the night. I will take more measurements
using the SiliconDust diagnostic program.
I'm suppose it could be other interference.
The residential development has underground power distribution from the 60s.
The county is slowly converting to LED intersection lights.That was done 2 years ago
Could I use AM radio as a interference detector?
My SiliconDust tuner is 2 years old. Maybe the power supply is failing and weak station
reception is first symptom of pending failure.
To do list:
Replace baluns and check connections before rainy season.
Replace SiliconDust tuner wall wart power supply.
If simple measures do not improve situation I may just bail on RF 12. Depend
on RF 49 for NBC network content.
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