[Hackrf-dev] Help with troubleshooting rx on my possible broken

[Fred Toewe]

Frank,  I am no Hackrf expert, but I fear you fried the first stage of 
the receiver.  The Wiki warning reads

"Receive Power

The maximum RX power of HackRF One is -5 dBm. Exceeding -5 dBm can 
result in permanent damage!

In theory, HackRF One can safely accept up to 10 dBm with the front-end 
RX amplifier disabled. However, a simple software or user error could 
enable the amplifier, resulting in permanent damage. It is better to use 
an external attenuator than to risk damage."

Assuming you had an antenna connected when the 0.5 watt transmission was 
made, the power was probably just too much for the first stage.  I would 
troubleshoot that portion of the radio."

The possible good news is that this probably happened to a lot of people 
so you should be able to get advice which components likely need replacing.

Good luck, Fred

On 4/16/2015 12:31 AM, hackrf-dev-request at greatscottgadgets.com wrote:
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 15 Apr 2015 21:56:27 +0200
> From: Frank Pedersen <frank at sundog.dk>
> To: hackrf-dev <hackrf-dev at greatscottgadgets.com>
> Subject: [Hackrf-dev] Help with troubleshooting rx on my possible
> 	broken	hackrf
> Message-ID:
> 	<CAJCYWcgcOJwTNt=4zj-h4ShXj98kgH=0wTPPjC3Bo8AnoKH_CQ at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> Hello and greetings,
> I hope I can ask my question here..
>
> I got my hackrf around 4 - 5 month ago, and it have been working flawless
> until last night. First it was working great, then sudently no signal.
> There was a guy that send out an rf signal on 0,5 w like 1 meter away from
> me, but I can't believe that it would course it to break!?
>
>