[Hackrf-dev] ANT500 shorted

[Christoffer Holmstedt]

I've tried some basic FM examples with my HackRF that I got from
Store4Geeks and it works just fine so it's not the entire batch that got
broken antennas ;)

-- 
Christoffer Holmstedt

2014-09-28 22:39 GMT+02:00 Rich S <richnsanders at gmail.com>:

>  The whip can be handy, especially when traveling.  Unless you're going to
> transmit, I'd recommend hiding a discone antenna in your attic (this wife
> will not like seeing this every day.)  The wideband freq response is great,
> although there is no gain.  The ST4 costs under $70,
> http://www.antennacraft.net/Antennas/AntennasScanner.html , and does a
> good job.  If you're handy, you can make your own discone using the
> calculator on this page, http://www.changpuak.ch/electronics/calc_11.php
> ,  I made a discone antenna that has very good performance from 600 Mhz to
> just under 6 Ghz.  I made this out of sheet metal and it cost me under $45.
>
> Wideband amps are really getting cheap too.  QST's July 2014 edition had
> the schematics and parts list for an amp that will work up to 4 Ghz and 6
> Ghz.
>
> Rich
>
>
>
> On 9/28/2014 2:38 PM, Matthias Wolf wrote:
>
>   Hi Mike & list,
>
> I just wanted to let you know that I also received a shorted ANT500 (got
> mine from Store4Geeks in Sweden). Until I found out today, my experiences
> with the tutorials and HackRF were very, very discouraging. I only got a
> huge DC spike in the center of my spectrum but no usable signals at all.
>
> I got this behaviour across all systems (including Pentoo) and all SDR
> applications. The FAQ made me think that I had a firmware / library
> mismatch problem, so I sat down and went through the hassle of manually
> compiling the newest versions. Ah, my wife says hello. Turns out she's not
> quite happy having me in the basement all the time.
>
> So, for the sake of other husbands' wellbeing, I would like to encourage
> you to update the FAQ to include these particular symptoms together with
> the advice to measure the antenna and replace it with a paperclip.
>
>  Unfortunately that's not all. When I tried to repair the ANT500 by myself
> (effectively voiding the warranty), the spring decided to jump away and to
> hide somewere beneath my furniture. So now it's useless AND missing a part.
> Could you help me out somehow? Are you shipping spare parts to Europe by
> any chance?
>
>  Thanks
>  Matt
>
>
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