[Hackrf-dev] Low signal on my HackRF One with ANT500

[Jon B]

In my case I used a paper clip in place of the antenna (Michael's
suggestion) and I could see the FM station signals.  I then inspected the
antenna.  The only thing I could think to do was ohm the center pin to the
ground.  It was shorted.  I unscrewed the black plastic cone from the SMA
connector and noticed the coil wasn't bent correctly.  It was shorting
right at the first turn.

On Sun, Sep 7, 2014 at 12:02 PM, Doug Theriault <dtnh at mac.com> wrote:

> Matt,
>
> You might want to check whether your ANT500 is measuring a short at the
> connector.  Another user had issue where the spring/coil was shorting or
> not making proper contact with the center conductor of connector.
>
> http://nine.pairlist.net/pipermail/hackrf-dev/2014-August/000412.html
>
> Doug
>
> On Sep 7, 2014, at 4:00 AM, Matt Turner wrote:
>
> Hi,
>
> I've fired up my new HackRF One with Pentoo Linux but am struggling to get
> good results using the FM radio example on the getting started page.
>
> I'm not able to receive any of the local FM radio stations that I normally
> listen to, when I tune to them I just hear static. I have an old Nokia N900
> with an FM transmitter that I've fired up on 95.0MHz. I'm able to receive
> the transmission from that but the sound output from my speakers sounds
> like a typical very bad FM reception.
>
> A little battery FM radio I have tunes into it perfectly.
>
> A picture of the FFT Plot from the example FM radio file is here:
> http://imgur.com/Da4TMFv I've not made any changes except for clicking
> the 'Average' checkbox on the FFT trace options. The HackRF One is sat
> right next to my FM radio transmitter.
>
> I get the same effect on two computers - a laptop and a desktop, both
> using Pentoo Linux from a USB stick.
>
> Where should I go from here to try and work out what's happening?
>
> Thanks,
>
> Matt
> _______________________________________________
> HackRF-dev mailing list
> HackRF-dev at greatscottgadgets.com
> http://nine.pairlist.net/mailman/listinfo/hackrf-dev
>
>
>
> _______________________________________________
> HackRF-dev mailing list
> HackRF-dev at greatscottgadgets.com
> http://nine.pairlist.net/mailman/listinfo/hackrf-dev
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://nine.pairlist.net/pipermail/hackrf-dev/attachments/20140907/aa5e6ebf/attachment.html>