Deep Fringe - Setup no longer working, at a loss
Hello All! Sorry for the novel, but its a 7 year story.
With great advise from this forum 7 years ago I installed an 91XG and AntennaCraft 10G202 on a chimney mount, about 20' from ground to antenna, pointed at 338. At that time I had RG59 cables with crimp ends running to the old directTV coax to the TV. I received all the red channels at 338 degrees (Denver) 95% of the time, and the yellow and green eastern channels (Kansas) 100% of the time, including the VHF channel 10. This setup worked great for about 3 years when I realized it was breaking my chimney apart. I moved it to a tower 15' north, 30' from ground to antenna, pointed at 338, with all new RG6quad with compression ends (and rebuilt my chimney). This reduced my reception of Denver channels to about 90%, which I assumed was due to the horizontal shift. Still good. Since then I have progressively lost signal more and more. I started losing the Kansas channels when pointed north, so I installed a rotor to be able to point to the east when necessary. I have burned through 5 pre-amps: the 10G202, 3 RCA TVpramp1's, and 1 new version CM7777 all of which stopped working at some point. Antenna Direct sent me a new balum. I have rewired from the antenna to the ground 3 times, and now test with a tv at the base rather than in the house. It just kept getting worse. I have not received Denver channels reliably (>20% of the time) for about the last year and have just had it pointed east. Channel 10 has started to get choppy. This weekend I decided to try a new 91XG and a Winegard Boost XT preamp (instead of the RCA) and completely rewired, to try to get my Denver channel back. I think it got worse. In the house and base of the tower I get some of the Denver channels very choppy, and no Kansas channels pointed north. I get vhf10 very choppy only when pointed northeast, and get 17 and 19 only when pointed due east with occasional choppiness. I just can't figure out what gives and am at a loss. Any thoughts on what could be going on, or anything else to try? Anything I could be testing for? I am considering an HDB8X to try... but am very hesitant to keep throwing money at this.. I just wasted $100+ on a new 91XG, and also concerned about its wind load, not sure my tower could take it. Before all of this, I used to get Kansas with an RV antenna, so thinking giving up on Denver, ditching the tower and its lightning risk, and just putting a mid-range vhf/uhf combo down low to at least get Kansas. But pointed east on my tower my 91XG is choppy on them sometimes now, so maybe that won't even work?!? I wired up the elderly neighbor next door with his 30 year old UHF antenna and no preamp and he gets Kansas most the time. ?@%@X! Here are my reports: Note I do have a full power FM station about 1/2 mi south. http://www.tvfool.com/?option=com_wr...90388d28ae2280 https://www.rabbitears.info/searchma...study_id=26776 Hope someone has some thoughts... thanks!!! |
No easy solutions and lots of work involved....
For starters: I would run a PROVEN "jumper cable" from each of the antennas to a tv at the base of your tower. How do each of the antennas perform compared to what you are now typically receiving??? If better, then you know the wiring/amplification is suspect further down. I'd also try the above with/without amplification as that FM station may be causing you some interference. |
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It sounds like the new tower location isn't quite as good as the chimney location was for reception. Quote:
https://forum.tvfool.com/attachment....7&d=1573527393 https://forum.tvfool.com/attachment....2&d=1573522871 https://forum.tvfool.com/attachment....3&d=1573522932 Denver channels would never make it to your location except during unusual atmospheric conditions. https://forum.tvfool.com/attachment....4&d=1573523050 Quote:
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https://forum.tvfool.com/attachment....5&d=1573525178 K24EZ is a low power translator only running 0.192 kW ERP, that's 192 Watts. The actual transmitter output is only 20 Watts with an antenna gain of 8.06 dB. 0.03 kW TPO + 8.06 dB gain = 0.192 kW ERP https://www.rabbitears.info/tvq.php?...ms&facid=55618 Quote:
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Thanks guys!
Rabbit, attached is my FM fool report. I knew they were from Idalia repeaters, just meant the channels were Denver channels. My county is the only county in eastern CO that turned their repeaters off in 2007. :(. I forgot about the terrain model/map... In 2012 I was definately in a more solid band of the Idalia transmitter.. I wonder if they lowered the power or something. I theorized tree growth as well... but just found it too coincidental that I also progressively lost Kansas channels. Whats a way to test a cable to know its "proven" as mentioned by JoeAZ? Test resistance? Other than that... sounds like I just need to give up on the Idalia/Denver channels. Thanks! |
Sorry for the delay in responding to you.
I spent a lot of time reviewing your situation. Realistically, you should have no problems with the Kansas stations. KWKS runs 464kw with an antenna height of 373m agl. KLBY runs 625kw but the antenna is 219m agl. The issue with KBSL pixelating is probably related to the 91XG antenna, that is not designed to receive VHF. The other two stations should not be causing you any concern. This leads me to believe you do have some issue with your system. How close/tall are the closest trees and in what direction are they??? My favorite way of testing cable is to run a Rf signal from a "source" such as a converter box with on screen graphics to the television. I manipulate the cable, one small section at a time and look at the television for any changes in video or audio. There are other ways of testing cable as well. |
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