SNR without LNA

1

Hello to everyone,

Is a SNR of 1.4 - 1.9 dB without a LNA possible?

My complete setup:

RPB 3
DX Patrol MK2
Homebrew l band patch antenna

I ordered the following LNA:

http://www.ebay.de/itm/30dB-low-noise-LNA-Breitband-Modul-Empfanger-RF-Wideband-Verstarker-0-1-2000MHz-/172478977373?hash=item28288c555d:g:P7wAAOSwnHZYcpTr

Hope it is ok for receiving a stronger signal, I heard I need at least 3 dB.

BTW: I’m aware of the LNA4ALL.

Thanks!

73 de Daniel

2

Is there any way to set the rf gain?

Because I need to adjust the rf gain for the dx patrol sdr device.

I’m already connected to the pi with ssh but I can’t find a config.

Thanks…

3

most probably it doesn’t work as a wideband LNA and picking up all the surrounding noise too. the outernet LNA has a narrow bandpass filter (SAW filter)

4

gain in the Skylark system is set automatically