[CW] High Power Coax

[Hal Dale]

I received a 500ft spool of RG17/U from Army Mars years ago...It was around 7/8"..11000 Vrms.... Being in the comm biz last 40 years, I also installed lots of 1-5/8"....More about cable loss than voltage...Hal/WB4AEG






---- On Sat, 13 Apr 2024 17:17:26 -0400 sbjohnston--- via CW <cw at mailman.qth.net> wrote ---





Biggest I've used in my radio stations has been 3-1/8" rigid coaxial line.  Dielectric is dry air or nitrogen.  Mounting and hangers have to allow for the considerable expansion hot days versus cold nights for hundreds of feet of this line.



Some VHF TV stations I've worked with had the 6-1/8" size.  





Steve WD8DAS   




mailto:sbjohnston at aol.com   


http://www.wd8das.net/   http://www.wd8das.net/


http://af4k-crystals.com/   

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Radio is your best entertainment value.   

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On Friday, April 12, 2024 at 03:34:56 PM HST, D.J.J. Ring, Jr. <mailto:n1ea at arrl.net> wrote:





50 Ohm coax sections. The inner conductor is 6-1/8 inch hardline outer conductor. Big stuff. It easily handles 4 Megawatts peak power or about 360 kW continuously.



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