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Low VHF interference

Here are my crappy pictures.
 
Reactions: rabbit73
rabbitears.info owner " forget his name" should incorporate your answer here into the website.
His name is Trip on this forum. He is the webmaster for the rabbitears.info site and works for the FCC.

I have known Trip for a long time and have learned a lot from him. He checks my posts from time-to-time. When I say something that is right, he supports me; when I say something that is wrong, he corrects me. I appreciate both; I don't want to post bad advice.
 
Reactions: FTA4PA

Thank you for the interesting antenna photos with notations.





I see you are using a splitter in reverse to combine your VHF-Low twinlead antenna with your 4-bay bowtie antenna.

Sometimes that works OK, but not always. The correct device to use is a HLSJ (VHF-High/VHF-Low Separator-Joiner).

If the two antennas pick up the same signal, when they reach the combiner they might interfere with each other.

To see if using a splitter in reverse as a combiner for your two antennas is working OK, I suggest you make a TEMPORARY test by connecting just the VHF-Low twinlead antenna to the 7777 preamp to see if there is any improvement in your VHF-Low signals.
 
Reactions: freeisforme
I am using the twin lead as a simple folded dipole tv antenna. Is there a better radio or radio antenna to find other poles? Marine VHF radio? Don't have it but can borrow. I don't mind building a antenna. As always, cheap or free is best.

If you can pick up the noise without an external antenna then that'll help pinpoint the source. I've removed a "rubber duck" antenna on an FM transceiver to locate interference issues.
 
correction: the twin lead is 96 inch. i cut it shorter for better reception on rf 6. i should make it longer. i dont watch 6 abc.

reverse splitter: i did try each antenna without the splitter. it seemed to make no difference on low vhf. hi vhf " one channel at the time of install" and uhf the difference was not enough to lose any channels. therefor i kept the reverse splitter. if you think the HLSJ will help some, i give that a try too.
 
If you can pick up the noise without an external antenna then that'll help pinpoint the source. I've removed a "rubber duck" antenna on an FM transceiver to locate interference issues.
i did try the AM radio. some pole are noisy next to my house. I should record the power line noise and post it. can i post just audio?
 
Build Day. I will take a picture of the single meter on the TV with the current twin lead antenna and the new 14awg antenna for channels 2, 6. directly connected no splitter. Thanks Rabbit73
 
Need more gain. A signal strengh of 40+ is needed to watch channel 2 on the TVs (4). The reverse splitter and Amp lower the strength to about 25-30. Channel 6 seems to work OK at 35.