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Ross Archer wrote:
On Aug 30, 10:15 pm, RHF wrote: QUESTION FOR ONE AND ALL : Coax Cable - What's Between Your Antenna and Radio ?http://groups.yahoo.com/group/Shortw.../message/14610 Low Loss type Coax Cable ? RG58 Coax Cable ? RG8 Coax Cable? RG6 Quad-Shield Coax Cable ? WHY - Cost ? Performance ? Value ? hope this helps - iane ~ RHF . . . . I'm using Belden 9913F7 (this is 9913 with a foam dialectric instead of the generic 9913's air dialectric). I'm using it because I bought a good bit of it for UHF/VHF work where its low loss is really important.As an aside, avoid air dialectric cable because it can act as a "wick" and conduct water and moisture via capillary action if exposed to the elements and not adequtely waterproofed. A very experienced ham swears by LMR-400, either ultraflex or standard. The ultraflex is a lot less stiff and can turn corners a lot better and that's what he uses. Ladder line or window line is worth a look too, and it can be relatively cheap. ![]() http://www.vk1od.net/LOLL/index.htm An interesting hybrid approach would be to use ladder or window line from the antenna feedpoint to the outside entry point, then transition to a 6:1 or 4:1 balun and coax for the final run into the house. ![]() Wonder if anyone has tried this instead of coax, and how their success was? The main reason I'm using coax is the antenna does both TX and RX duty, and I didn't want to deal with the possibility of "RF in the shack" issues. Hey, Ross, Long time no read! I'm using LMR-400 (standard) for a V/UHF run and have fallen back to RG-213 for HF runs. I had used 9913UF for the longer HF run, but the on-paper performance didn't last when the cable was exposed to intense UV. -- Eric F. Richards "Nature abhors a vacuum tube." -- Myron Glass, often attributed to J. R. Pierce, Bell Labs, c. 1940 |
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