The strong signal may be from a source other than the TV signals. FM harmonics seem to have been ruled out so that leaves a puzzle. It's too bad that consumer grade tuners do not offer better diagnostics.Seems strange that I get 100% signal strength on 13.1, 11.1 and 7.1 but 0 quality on 11.1 and 7.1 and 100% quality on 13.1.
That's interesting. What is the make and model of the old HLSJ and the make and model of the new HLSJ?I bought a new HLSJ a few weeks back and decided to give it a try. After I installed it VHF channel 7.1 was now almost perfect with some minor pixelation showing up from time to time.
You can now do a report from rabbitears.info using their new search map:11.1 is still a no go.
Something is there that shouldn't be there, but we don't know what it is yet. I was hoping you could get an SDR dongle going as a substitute for a spectrum analyzer. I use my old Sadelco 719E signal level meter to listen to and measure noise on VHF. It is stronger on VHF-High than on UHF, and very strong on VHF-Low with an indoor antenna. The signal must be at least 15 dB stronger than the noise to be received.So there must be some FM noise impacting 7.1. It was not all corrected but the filter helped a lot. Must be some noise still getting past the HLSJ.
You did say you had solar panels, but you didn't say if they were solar electric or solar thermal for heating:I see solar panels on your roof. Are they solar electric or solar thermal? If they are solar electric, I would suspect inverter interference.
Which kind do you have?lenlab said:Yes I have had solar for the past 7 years and it never impacted my reception UHF or VHF.
I bought the RTL-SDR.COM dongle and had to learn how to assemble the software to make a spectrum analyzer.An Update on my journey and experience. I bought an RTL-SDR USB device and then tried out software to get it working.
One caveat is I have no clue what I am doing and what the resulting displays are showing me with the various software discussed
You need the spectrum analyzer software for that. I learned how to assemble and use two 32-Bit programs and one 64-Bit program.I am interested in analyzing my high VHF OTA signal for noise interference.