[time-nuts] Switching 1 pps signal

[Taka Kamiya]

I should have mentioned this clearly earlier, but all converting and switching, then measuring happens in ONE 2U rack case.  Length of each cable is minimal.  I thought mention of TICC would make it sort of clear but it didn't.
I have LOTS of coax relays.  I'll use them.  It's a gross overkill but I've seen 80s HP equipment have overly generous parts selections, too.  It's hard to explain EXACTLY as the contraption isn't built yet.  That made it necessary to use generic terms.  I apologize for causing confusion.

--------------------------------------- 
(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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