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Old September 9th 11, 01:14 AM posted to rec.radio.amateur.antenna
Jim Lux Jim Lux is offline
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First recorded activity by RadioBanter: Mar 2007
Posts: 801
Default MFJ-868 SWR/Wattmeter

On 9/8/2011 4:12 PM, John S wrote:
On 9/8/2011 4:18 PM, Jim Lux wrote:
On 9/8/2011 12:27 PM, Jeff Liebermann wrote:
On Thu, 08 Sep 2011 14:12:20 -0500, John
wrote:

On 9/8/2011 1:30 PM, Jim Lux wrote:

And, you can take ESD hits that degrade, but don't destroy, the part.
I've got some LNAs in my desk drawer that appear to work just fine,
except the NF is a bit higher than it used to be.

How do you know it was ESD that caused the degradation?


Oh.. I don't know on the ones in the drawer that's what did it (because
they still work, after a fashion)


That's the reason I asked. Thank you.


Yeah.. the guy or gal who figures out a good non-destructive, no
disassembly required way to detect latent ESD damage is going to be a
hero for those of us building one-off high-rel gear. There have been
some partial solutions for specific parts, but no generalized way, yet.