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Re: Is there a known ch0 input protection mod? #problem #nanovna


 

Device from MiniCircuits: VLM-33W-2W-S+

URL:

Rated from 0.200 through 3000 MHz in a 50-ohm system. It's marketed as a
spectrum analyzer protector.

Dave - W?LEV

On Fri, Feb 4, 2022 at 8:19 PM Roy J. Tellason, Sr. <roy@...>
wrote:

On Friday 04 February 2022 07:43:31 am Michael wrote:
Search on "How not to damage your NanoVNA when measuring SWR" in
Youtube. Good video basically TVS + Back to Back diodes, series resistor
and good description of functions. Also applies to TinySA.

Michael (GW7BBY/GB2MOP)
Good video, that. I wonder, though, how necessary that protection
network is if you make it a point to ground the cable to the antenna to
discharge static buildup, and you don't plan to leave the Nano connected?


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*Dave - W?LEV*
*Just Let Darwin Work*

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