LNA help

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Reg_C
Posts: 3
Joined: Fri Aug 31, 2018 6:48 am

LNA help

Post by Reg_C » Fri Aug 31, 2018 6:51 am

Hi all,

I'm kinda new to the SDR world. I have a pretty simple question about LNA's. Does the antenna connect to the input or the output? I was look at the new nooelec Goes LNA specifically and don't want to connect the device up the wrong way around.

Thanks a lot!

phil
Posts: 51
Joined: Mon Aug 21, 2017 11:02 pm

Re: LNA help

Post by phil » Fri Aug 31, 2018 7:50 am

All the LNAs i have including a nooelec, the input is the antenna side, output to the radio.

Reg_C
Posts: 3
Joined: Fri Aug 31, 2018 6:48 am

Re: LNA help

Post by Reg_C » Fri Aug 31, 2018 1:02 pm

Perfect. Thank you so much for your help!

rtlsdrblog
Site Admin
Posts: 2394
Joined: Mon Nov 19, 2012 11:54 pm

Re: LNA help

Post by rtlsdrblog » Sat Sep 01, 2018 9:44 am

Yep think of the way that the signal travels. The signal is input from the antenna, gets amplified by the LNA, and then is output to the SDR. Reversing most LNA's shouldn't break it, but better not try just in case.

Reg_C
Posts: 3
Joined: Fri Aug 31, 2018 6:48 am

Re: LNA help

Post by Reg_C » Sun Sep 02, 2018 3:35 am

Great explanation. Thank you! I very much appreciate it!

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