Hello Fellow Tower Talkians, I'm placing a 65 ft. tower with a C31XR on top, approximately 400 ft from my shack in the house. I've always used RG-213 or RG-8U in the past to this Yagi, (but I've neve
Tom, Lets assume your total coax cable length is 500 feet from your transmitter, out to your tower, up the tower, then to the C31XR feedpoint. Here are the loss figures in feet per dB for various com
If you're a purist, you could purchase 500 feet of Andrew LDF5-50A, but that would set you back about the same amount as your tower and beam! 73! Frank W3LPL ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Frank and Bill make good points. For the last 10 years, I have been using 3/4" CATV for most of the 190-foot run from my house to my antennas. To be specific, I use RG-213 up the tower and across the
On Wed, 16 Aug 2006 22:25:04 -0400 (EDT), donovanf@starpower.net wrote: While cable loss is certainly an issue, there are many other elements in the equation. Will the more distant location provide s
Author: Robert Chudek - KØRC <k0rc@citlink.net>
Date: Fri, 18 Aug 2006 12:23:06 -0500
Hi Pete, Can you elaborate on the "1750 Hz (measured at 28 MHz) of 3/4" CATV" you mentioned? First, I assume you meant 1750 KHz, but aside from that, I'm not following what you mean. Also, measuring
You're right, Bob, it was a typo. The idea was that I wanted to have a half-wavelength (or close to it) at the lowest frequency of operation, meaning 160 meters. But I also wanted to measure as accur
Author: Robert Chudek - KØRC <k0rc@citlink.net>
Date: Fri, 18 Aug 2006 16:19:43 -0500
FB! Pete, Regarding your measurement at 28 MHz idea... Last winter I wanted a 1/2 wavelength feedline for 1830 KHz. I used my AEA HF VIA Analyst to tune the coax. The AEA has a computer interface and
If I were putting a relay at the far end, with the goal of measuring coax properties, I'd terminate it in a deliberate mismatch other than a short or open, and certainly not in a load matched to the