[amsat-bb] (no subject)

[Norm n3ykf]

9913f7 has a solid dielectric. Conductor migration is a problem with
straight 9913, as well as other issues. Minimum bend radii need to be
observed.

PL-259 connectors can be applied to f7 with a plumber's torch.
Amphenol N's are easy install and easy to come by. Do look for the
9913f7 compatible ones as the center conductor is heavier.

I like Belden as quality is top notch. Flexible and long lived
product. Keeping work in the US? Priceless.

A 50' run is not much to worry about. Use LMR-400 DB (cost=free) for
the 130' home run to the shack on VHF. It needs no preamp. On the UHF
side, LDF450A does better, but needs a preamp.

Try Craigslist for bits of cable. I dug 300' of LDF450A out of a
dumpster. Still have 100'.

Tomato or tomato. Do take care as workmanship rules the longevity and
weatherproof qualities of the final product. All of this stuff works.
Install with a hammer? Not for long.



On Sat, Feb 18, 2017 at 7:09 AM, Jeff <jeff_griffin at comcast.net> wrote:
> There is only a .3 DB of loss difference between the regular and flex LMR400
> in your 50 foot run. Nothing to worry about. I would just go with the
> LMR-400-UltraFlex.
>
> Here is a link to the Times microwave coaxial cable calculator...
>
> http://www.timesmicrowave.com/calculator/?productId=52&frequency=435&runLength=50&mode=calculate
>
> 73 Jeff kb2m
>
>
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