[Hackrf-dev] Thanks To All You Guys Stateside !. :)

[Stephen]

Hi James,

I have had similar problems with RX sensitivity on a genuine HackRF.

 

These are just my views, but from the posts I have read (here & elsewhere),
some of the genuine HackRFs have substantial RX sensitivity issues.

I found myself in this situation - I have been trying to use the HackRF for
narrowband VHF  RX & found it was being outperformed by the cheap dongles.  

Convinced there was an issue, I did side by side testing using an RF test
set (HP8920) & found there was about an 8-10db difference in RX sensitivity
(measured by the receiver's ability to detect an unmodulated carrier above
the noise floor).

 

I have been able to significantly improve the performance of the HackRF with
an external LNA with a low noise figure (~$30-$40 US) . This works as the
first amp in the RX chain has the most significant impact on RX system noise
- well it is working out so far. 

 

If you don't want to go to this trouble, I suggest the Airspy. It is RX
only, but its performance is very good.

 

Another alternative, I have found the RX performance of the clone HackRFs is
substantially better than the genuine one (in my case).

 

Regards

Stephen

 

From: HackRF-dev [mailto:hackrf-dev-bounces at greatscottgadgets.com] On Behalf
Of James Zervas
Sent: Monday, 8 February 2016 2:20 AM
To: HackRF-dev at greatscottgadgets.com
Subject: [Hackrf-dev] Thanks To All You Guys Stateside !. :)

 

Thanks for everybodys help and support but I give up on the HackRF One.
Maybe it just has a really poor receive on the device.

 

Thanks Guys

 

James

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