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Author Topic: Electrical Resistance on SMA Connector  (Read 1668 times)

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Offline skaw

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Electrical Resistance on SMA Connector
« on: June 16, 2016, 01:15:09 PM »
Hi Guys,

anyone of you with a Mode-S Beast or probably similar receiver...

Could you please check, what electric resistance you have on the SMA Connector for the Antenna? Between the inner signal connector and the outer mounting thread i have about less than 1 Ohm and somehow i doubt that this is correct..

Offline Anmer

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Re: Electrical Resistance on SMA Connector
« Reply #1 on: June 17, 2016, 07:13:14 AM »
I'm away from home and my Beast  But many are getting confused by SMA and RP-SMA connectors.

http://www.openplatform.com.hk/rfconnectortype_en.htm

Here to Help.

Offline skaw

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Re: Electrical Resistance on SMA Connector
« Reply #2 on: June 17, 2016, 08:48:08 AM »
Thanks, but thats not the case. The Beast and my coax cable has non-RP-SMA Connectors.

G√ľnter from jetvision could give me an answer:

Quote
The center conductor of the SMA is short against ground by a 8.2nH air coil of low impedance for protection against statics and weak lightenings.

So my readings seem to be correct.
« Last Edit: June 17, 2016, 08:49:51 AM by skaw »