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Old 7-Sep-2018, 11:35 PM   #5
rabbit73
Retired A/V Tech
 
Join Date: Aug 2012
Location: S.E. VA
Posts: 2,747
Quote:
Originally Posted by JoeAZ View Post
Rabbit73,
I've asked for our new member to PM you directly.
Good.

I hope he knows that he has a limit of 5 PMs before he is authorized to post. If he needs to continue a PM conversation, he has to copy and save earlier PMs, and then delete them.

Good advice above from ADTech.
Quote:
Prior to the neighbors house being there I was getting a signal at a much lower height. Now 58' AGL gets it, 54' AGL doesn't.
Sounds like the neighbor's house is blocking the signal. Raising the antenna certainly helps.
Quote:
I just climbed off the tower to disconnect a Lime PA which Solid Signals had on sale, thought I'd give it a try. I could seen no difference in the system with the rudimentary signal strength meters at my disposal. In fact I lost Ch 5 (17), 60 mins didn't record last night. Thus I took the Juice PA off line.
Are you calling the Juice preamp the Lime preamp? Why would you remove a preamp when your report indicates you need one? OTA signals constantly vary in strength. Your test doesn't support the conclusion to remove the preamp with 2Edge marginal signals.

It's not clear to me what is connected to what and how long the coax lines are. Something like this?

7698 > preamp > coax 50 ft > grounding block > preamp power inserter > distribution amp > TVs

Quote:
By the way, I can't get 3 (24) at 33' but I can get Tucson 4 (23), go figure. :-)
Enhancement of weak, usually impossible, signals by Tropospheric Propagation.

Quote:
Hi, I'm in Fountain Hills AZ trying to get a reliable signal on Channel 12.
Electrical interference is higher on VHF-High than on UHF. it could be affecting reception of 12.

Another possibility is FM interference. You have a strong local FM signal that can interfere with the reception of 12. I did an FMFool report based on an estimated location derived from your TVFool report because I don't have your address or the exact coordinates of your antenna. It shows that KHOT-FM at -13.7 dBm is strong enough to interfere with 12.
http://www.fmfool.com/modeling/tmp/7...d/Radar-FM.png

The Juice preamp doesn't have an FM filter, but it does have an LTE filter; there wasn't room in the case for both. For some weird reason ADTech's boss decided to discontinue their FM filter.
https://www.antennasdirect.com/store...on_filter.html

And what is even more weird, their UVSJ UHF/VHF combiner is out of stock:
https://www.antennasdirect.com/store..._combiner.html

His boss doesn't seem to understand that having those two items in stock encourages the sale of their antennas.

Rant over.

Anyway, you can use a HLSJ, high section, as an FM filter:
https://www.solidsignal.com/pview.asp?p=zhlsj

Order two; you might need two in series between the antenna and the preamp if my estimate is correct. And the coax must be grounded with a grounding block connected to the house electrical system ground to help reject interference.
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Last edited by rabbit73; 8-Sep-2018 at 1:21 AM.
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