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(Mr.) Taka Kamiya
KB4EMF / ex JF2DKG
On Sunday, July 7, 2019, 12:00:52 AM EDT, Glen English VK1XX
<[email protected]> wrote:
Hal, Good point.
and I have never seen a spec for phase stability for Cat-7 cable !
for RG58, OR OTHER polyethylene, might be up to 150ppm /deg C. maybe as
good as 10 ppm/deg C for some LMR.
With 1000 feet of cable might be an issue for fine stuff. a few nano
seconds each way over temperature might not matter for his project...
I forget it is not a microwave RF VNA application. Easy to resolve
anyway with a difference balance term somewhere.
g
On 7/07/2019 11:23 AM, Hal Murray wrote:
>> coax cables are in general NOT PHASE STABLE with temperature, either.
> Is twisted pair any better?
>
>
>
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