Author Topic: Rg174, rg316, etc  (Read 790 times)

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Offline cncjerryTopic starter

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Rg174, rg316, etc
« on: November 12, 2020, 08:27:00 am »
When I bought a nanovna for the heck of it,  it came with two short sections of black cable, about 2.8mm in diameter.  It seemed a little larger than rg174 but I didn't have any 174 at hand.  It was also pretty flexible.  I usually use rg316 for short test leads or hardline for internal connections.  I'M wondering if there are new rg174/316 type super flex cables with better shielding and maybe silicone outer material?  I would like something with better or at least the same db loss per 100ft @10Mhz like 316 but more flexible, also 50ohm.

Thanks

Jerry
 

Offline HB9EVI

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Re: Rg174, rg316, etc
« Reply #1 on: November 12, 2020, 12:30:48 pm »
I got 2 cables with blue coat with my NanoVNA; I guess it's a RG316 type cable.
if shielding is crucial, I'd go with semi-rigid like the RG402; to my knowledge there isn't anything new in the diameter section of about 3mm with better shielding and higher flexibility than RG174/RG316
 

Offline cncjerryTopic starter

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Re: Rg174, rg316, etc
« Reply #2 on: November 12, 2020, 04:55:22 pm »
The black cable that came with the nano is very flexible, for all I know it is just twin lead, but it seems fatter and according to my other devices, it is just as good as 316.  I have to find some 174, I thought I had a roll to compare it with.

thanks
 

Offline thinkfat

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Re: Rg174, rg316, etc
« Reply #3 on: November 12, 2020, 07:05:18 pm »
Semirigid as test leads is not a good idea. You damage it each time you bend it.
Everybody likes gadgets. Until they try to make them.
 


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