[Hackrf-dev] Sensitivity

[Tom]

I have taken some screen shots comparing the two, hackrf on the left and r820t2 dongle on the right.

LNA is off on the hackrf.

 

 

imgur.com/Z1JPbXm <http://imgur.com/Z1JPbXm> 

imgur.com/LRLcuy1 <http://imgur.com/LRLcuy1> 

imgur.com/Atf5x02 <http://imgur.com/Atf5x02> 

 

 

From: Tom [mailto:vsboost at hotmail.com] 
Sent: Friday, 3 April 2015 9:54 AM
To: Rich Sanders
Cc: hackrf-dev at greatscottgadgets.com
Subject: Re: [Hackrf-dev] Sensitivity

 

This is indeed interesting, are you able to take some screen shots comparing the two..

Can any other owners confirm they get similar SNR between the two.

On 2 Apr 2015 11:01 pm, Rich Sanders <richnsanders at gmail.com <mailto:richnsanders at gmail.com> > wrote:

I wonder if there is a manufacturing/consistency issue?  I find my HackRF to be at least as sensitive as my RTL dongles.

 

Rich

 

On Wed, Apr 1, 2015 at 11:08 PM, Tom N <vsboost at hotmail.com> wrote:

Thanks Stefan,

 

Just needed to confirm this with others.

 

Completely understand that they are two different devices built on different hardware etc.. etc.. but at the end of the day receive performance is the one thing that really counts when using SDR and if i can barley pick up a community radio station on 151mhz that is only 10km away from me using the hackrf with the ant500 but the signal screams in using the $12 dongle and the same antenna then that's not on.

 

If Mike ever considers a HackrfTWO please put receiver sensitivity/SNR at the top of your priority.

 

Cheers

  _____  

Date: Wed, 1 Apr 2015 08:16:05 -0500
Subject: Re: [Hackrf-dev] Sensitivity
From: wageners at gmail.com <mailto:wageners at gmail.com> 
To: vsboost at hotmail.com <mailto:vsboost at hotmail.com> 

Yes, big time!

 

Stefan

 

On Wed, Apr 1, 2015 at 5:45 AM, Tom N <vsboost at hotmail.com <mailto:vsboost at hotmail.com> > wrote:

Am I correct in saying that a rtl dongle is more sensitive then the hackrf?

 

I have done many tests with different software, sdr#, gqrx, sdr console and have tried every different gain setting, samplerates, bands, but my conclusion is that the SNR is better on the dongle. 

 

Can other members please confirm their findings comparing the two?

 

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