G'day Down here in Western Australia, RG-11A 75 ohm cable seems virtually unobtainable these days - and VERY expensive on the rare occasions when you can get it. However, RG-6 75 ohm triple- or quad-
One caveat - the RG-6 that is so plentiful and cheap these days has a steel center-conductor with copper plating. This does not matter at VHF/UHF where CATV stuff is carried due to the skin effect. H
The celluar polyethylene dielectric stuff is normally 78%. If you have the type similar to Belden 8215 (double shielded polyethylene dielectric) the VF is 66%. This is according to the Belden Catalog
Hi Steve I can't really answer your question abt using RG6 for tx - altho it looks as stout as RG58 and RG59. I would guess the insulation between the shield and center conductor is the key. Whether
effect. However, I RG6 CommScope Cable solid copper center conductor loss vs. copper clad steel (in brackets): MHz dB/100ft 1 .20 (.26) 10 .76 (.81) 50 1.46 (1.46) 100 2.05 (2.05) 200 2.83 (2.83) The
...SNIP... handle I have two catalogs in front of me. One is the Beldon Master Catalog and the other is from Alpha wire. There is no such thing as 'typical' 75 ohm coax. As in the 50 ohm variety, VF
SNIP same power handling capabilities as RG-8. SNIP RG-6 is more comparable to RG-8X or LMR-240. They are all basically 1/4" cables vs the 3/8" size of RG-8, RG-11, RG-213, LMR-400, Belden 9913, etc.
The celluar polyethylene dielectric stuff is normally 78%. If you have the type similar to Belden 8215 (double shielded polyethylene dielectric) the VF is 66%. Solid polyethylene is around .66, but f
With reference to this thread, one parameter not mentioned thus far is the so-called quad shield CATV type cables are excellent feedlines for such receiving antennas as Beverages, pennants and flags