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Technical Topics => SDR - Software Defined Radio => Topic started by: Antennae on June 09, 2014, 0459 UTC

Title: Afedri dual channel receivers
Post by: Antennae on June 09, 2014, 0459 UTC

Afedri's site has 2 SDR receivers to choose from with dual channels that I am stoked about. I want one so I can use antenna diversity and therefore reduce fading of my received signals!  Or I could use it as 2 separate receivers in one and view different spectrum from each.

AFEDRI SDR-Net x2 Dual Channel
http://afedri-sdr.com/index.php/afedri-sdr-net-x2-dual-channel

AFE822x SDR-Net ( Dual Channel )
http://afedri-sdr.com/index.php/new-afe822x-sdr-net-dual-channel

I'm going to study these up. I don't know the difference between the 2 besides the physical stuff.  I need to get some sleep so I have more mental bandwidth to study with.

Title: Re: Afedri dual channel receivers
Post by: IQ_imbalance on September 02, 2014, 0236 UTC

Any idea how it addresses the separate channels?  Different IP addresses or something?

Title: Re: Afedri dual channel receivers
Post by: ChrisSmolinski on September 02, 2014, 1159 UTC

Assuming they copied the netSDR (which they did previously) the I/Q data from the two channels are interleaved in the UDP data stream.

Title: Re: Afedri dual channel receivers
Post by: IQ_imbalance on September 05, 2014, 0254 UTC

I'm tempted by the dual receiver simply on the cost per unit basis (hey, only $100 for another SDR!) but in all likelihood would simply use one receiver on my H-800 and the other on my (eventual) skyloop.  If that's the case then an antenna switcher is lots cheaper....

Title: Re: Afedri dual channel receivers
Post by: Antennae on September 05, 2014, 0332 UTC

But with a switcher you don't get both of your antennas combined :)