[TowerTalk] Crimp on Coax connectors

[John Simmons]

But the RG400 has a *slightly* larger center conductor requiring a 
different connector (or careful drilling of a standard one).

73,
-de John NI0K

Jim Brown wrote:
> On 9/5/2019 1:01 PM, Jamie WW3S wrote:
>> whats the difference between LMR-400 and RG-400 ?
>
> LMR400 is the size of RG8, center is copper coated Al, shield is foil 
> plus copper braid. Foam dielectric.
>
> RG400 is the size of RG58, center is stranded silver-coated copper, 
> shield is double braid of silver-coated copper. Dielectric and outer 
> jacket are Teflon. Loss is similar to RG58 (RG58 and RG400 are not 
> specs, simply generic descriptions).
>
> The 2006 Belden book (more than an inch thick) lists 18 RG58/U and 52 
> RG59/U cables. Loss at 10 MHz for the RG58 cables varies from 1.1 to 
> 1.5 dB/100 ft (3.6-4.9 dB/100m). RG400 is about 1.2 dB/100 ft at 10 
> MHz. I've found Harbour Industries RG400 on ebay at good prices.
>
> The virtues of RG400 are its flexibility, high temperature and power 
> ratings, its excellent shielding, and its small size. The virtue of 
> LMR400 is low loss.
>
> 73, Jim K9YC
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