It was one of those “something’s not working on my Hack. I’ll try my second 
one” things.

I admit I was doing weirdness on the poor boards. I was trying out running USB 
over CAT 5 and had a USB transmitter and receiver setup with about 150 feet of 
CAT 5 between. The receiver, the unit near to the remote Hack was powered from 
a 5 V linear regulator (LM117 with pot and caps etc). Had the thing working 
pretty well with a bandwidth of 4 Mhz when disaster occurred.

I found that the CAT 5 receiver was also blown so I did something way wrong.

Some fun.

From: Chuck McManis 
Sent: Tuesday, September 4, 2018 10:55
To: j...@seti.net 
Cc: Hackrf-dev 
Subject: Re: [Hackrf-dev] Two Dead Hacks

Just out of curiosity (and a desire not to step into something) do you know how 
you killed the HackRFs? I've seen people who killed the input or output RF amps 
because they weren't thinking about RF stages, and I've seen a couple of 
reports of people killing them by using poorly regulated battery based power 
supplies.



On Mon, Sep 3, 2018 at 12:20 AM James Brown <j...@seti.net> wrote:

  I managed to kill both my Hacks. Neither one will enumerate on the USB. Tried 
several machines. No Luck.
  Is there a service for repair of these machines?
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