Hey everyone--I have a grounding question that I can't seem to find a good answer for. And before you tell me I have to ground because of lightning please read that I am indoors here!
I just put an antenna up in my attic so that I can improve my VHF/AIR/HAM band reception. It is near the top of my attic (but indoors) and connected with at most 30 feet of RG-58U coax. My concern is that the coax needs to run near some power and computer LAN lines--no way around that as the scanner shares a desk with the pc. I am getting interference in the HF and VHF low range because of the other lines near the antenna--and I have read that a lot of common-mode interference gets to the antenna and into the signal if the coax is un-grounded.
Is there a reason to / benefit for grounding the antenna of a receive-only setup like a scanner? I grabbed a test lead and tried to ground at the scanner with no noticeable benefit--is there a difference between grounding at the scanner vs. the antenna too?
I'd appreciate any advice you can give me because running unnecessary grounds will be a royal pain on that side of my house!
I just put an antenna up in my attic so that I can improve my VHF/AIR/HAM band reception. It is near the top of my attic (but indoors) and connected with at most 30 feet of RG-58U coax. My concern is that the coax needs to run near some power and computer LAN lines--no way around that as the scanner shares a desk with the pc. I am getting interference in the HF and VHF low range because of the other lines near the antenna--and I have read that a lot of common-mode interference gets to the antenna and into the signal if the coax is un-grounded.
Is there a reason to / benefit for grounding the antenna of a receive-only setup like a scanner? I grabbed a test lead and tried to ground at the scanner with no noticeable benefit--is there a difference between grounding at the scanner vs. the antenna too?
I'd appreciate any advice you can give me because running unnecessary grounds will be a royal pain on that side of my house!