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Author Topic: Grounding SDR receivers  (Read 2049 times)

Matt285

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Grounding SDR receivers
« on: October 22, 2019, 1542 UTC »
I am thinking of purchasing an SDR receiver such as the AirSpy. I have always owned table top receivers and was curious about the grounding of such receivers. Thanks
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Offline ChrisSmolinski

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Re: Grounding SDR receivers
« Reply #1 on: October 22, 2019, 1652 UTC »
They typically get grounded through the antenna connector.  Of course there's also a ground via the USB connector, and then your computer, which can make things interesting.
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Chris Smolinski
Westminster, MD
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netSDR / AFE822x / AirSpy HF+ / KiwiSDR / 900 ft Horz skyloop / 500 ft NE beverage / 250 ft V Beam / 58 ft T2FD / 120 ft T2FD / 400 ft south beverage / 43m, 20m, 10m  dipoles / Crossed Parallel Loop / Discone in a tree

Matt285

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Re: Grounding SDR receivers
« Reply #2 on: October 22, 2019, 1825 UTC »
Are we talking about an outside earth ground? Wondering how to attach to an SMA connector.
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Offline ChrisSmolinski

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Re: Grounding SDR receivers
« Reply #3 on: October 22, 2019, 1830 UTC »
In my case I use an SMA to F connector. My coax cables run outside where they get grounded, then underground, then come back up again (and get grounded again) and then go to the antenna.  I use CATV style grounding blocks.
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Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
netSDR / AFE822x / AirSpy HF+ / KiwiSDR / 900 ft Horz skyloop / 500 ft NE beverage / 250 ft V Beam / 58 ft T2FD / 120 ft T2FD / 400 ft south beverage / 43m, 20m, 10m  dipoles / Crossed Parallel Loop / Discone in a tree

Offline Josh

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Re: Grounding SDR receivers
« Reply #4 on: October 22, 2019, 1844 UTC »
Some guys have just wrapped solid bare wire around the sma connector of the sdr to ground.
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