2,4 Ghz Down converter

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gldr
Posts: 25
Joined: Tue May 05, 2015 6:38 pm

2,4 Ghz Down converter

Post by gldr » Sun May 10, 2015 2:36 pm

Hello,

I need to buy a down converter to use the Rtl_Sdr Usb Key to scan the 2,4 Ghz frequencies range, like done here:

http://blog.cyberexplorer.me/2014/01/sn ... 6984695036

My doubt is on the down converter to choose:

2.2-2.4 Ghz or 2.4-2.6 Ghz ?

The author of the article above has preferred the 2.2-2.4 GHz down converter instead of the 2.4-2.6 version.

Thanks

rtlsdrblog
Site Admin
Posts: 2699
Joined: Mon Nov 19, 2012 11:54 pm

Re: 2,4 Ghz Down converter

Post by rtlsdrblog » Sun May 10, 2015 9:56 pm

If you're looking at freq's above 2.4 GHz, i'd think that the 2.4 - 2.6 one would work better, though both will probably work just fine. He probably just chose that one as they are much more common.

gldr
Posts: 25
Joined: Tue May 05, 2015 6:38 pm

Re: 2,4 Ghz Down converter

Post by gldr » Mon May 11, 2015 2:21 pm

I'm going to buy the 2.4-2.6 Ghz version.

I suspect that a power injector for the down converter is always needed because it's an active device.

rtlsdrblog
Site Admin
Posts: 2699
Joined: Mon Nov 19, 2012 11:54 pm

Re: 2,4 Ghz Down converter

Post by rtlsdrblog » Tue May 12, 2015 10:34 pm

Yep, you'll need a power injector of some sort. Be careful that the DC power doesn't enter the RTL-SDR dongle, or it may get fried.

KD0CAC
Posts: 12
Joined: Tue Jun 02, 2015 7:24 pm

Re: 2,4 Ghz Down converter

Post by KD0CAC » Tue Jun 09, 2015 1:12 pm

I started with interests in the SDR from ham radio and bought a package from Nooelec .
But also thought about using to troubleshoot wifi 2.4 & 5 ghz , so looking for an downconverter also ?

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