[time-nuts] Leakage, tinySA

[John Ackermann N8UR]

You can get custom-made decent quality cables with double shielded coax 
(either RG-316D or RG-142) from China (where else?) for pretty low 
prices.  I am sure the cable isn't mil-spec but I cut a piece open and 
the shield coverage, which is the main thing I worry about at HF 
frequencies, is pretty good.  The connector finish is sometimes a bit 
rough (particularly the BNC bayonet part) but they hold up pretty well 
and I haven't seen any damage from mating them.

The place I mainly work with is "RF Bat" or "SuperBat" at rfbat.com. 
Ask for Amy and tell her I sent you. :-) (no commercial relationship, etc.)

John
----

On 1/16/21 12:40 PM, Brian Lloyd wrote:
> On 1/16/21 04:32, Hal Murray wrote:
> 
>> The 10 MHz is stronger near coax carrying 10 MHz and next to a 
>> Z3801A.  I'll
>> have to try some good cables.  Anybody have a favorite source?  Is 
>> there a
>> magic word?  Do I have to specify the type of coax?
> 
> Yes. RG400 or RG316. Do NOT use RG58 or RG174. Both RG400 and RG316 are 
> double-shielded to reduce leakage. The choice is dictated by length of 
> run and physical flexibility required. Mostly I use RG316 cables on the 
> bench. For more than a meter or so I go with RG400. You can get either 
> type of cable terminated with N, BNC, TNC, or SMA connectors.
> 
> All kinds of pre-made cable assemblies using RG316 are available from 
> Amazon for surprisingly-low prices. I can't buy the coax and connectors 
> for what I end up paying Amazon for completed cables. For RG400 I end up 
> making my own cable assemblies.
> 
> The LMR cables (Times Microwave and knock-offs) are pretty good too. 
> LMR195 is pretty good but not nearly as flexible as the aforementioned 
> cables. LMR400 is just too big and inflexible for easy use on the bench.
>