[time-nuts] Switching 1 pps signal

[Taka Kamiya]

--------------------------------------- 
(Mr.) Taka Kamiya
KB4EMF / ex JF2DKG
 

    On Sunday, July 7, 2019, 12:00:52 AM EDT, Glen English VK1XX <glenlist at pacificmedia.com.au> 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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