[Hackrf-dev] HackRF USB voltage

[Andrea Salvatore]

Hi Charles,

I'm running the RF Analyzer with HackRF on Nexus 2013 and Nexus 7 2012 fully charged and have no problems with them.

Maybe it's the OTG cable?

72/73, Andrea IU4APC

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> Il giorno 21/dic/2014, alle ore 17:06, Jay Bougie <jaybougie at gmail.com <mailto:jaybougie at gmail.com>> ha scritto:
> 
> Thanks for sharing that observation.
> 
> On minor clarification to ask, what generation/release year is your Nexus 7?
> 
> On Dec 21, 2014 10:55 AM, "Charles" <cbeener at columbus.rr.com <mailto:cbeener at columbus.rr.com>> wrote:
> I've been fighting the HackRF for some time now . I now can get it working with my Nexus 7.
> 
>  The problem ended up to be the Nexus USB output power when it is more the 70% charge on the battery. the output of the power off
> 
>  it is more than 5.1 volts apx 5.27 volts. and it will not connect to the Nexus when it is at that high of voltage.
> 
>  But if we run down the Nexus 7 to 70% the voltage at the USB is low enough the the HackRF will connect to the Nexus 7.
> 
>  I'm going to try a small resistor in series with the Plus voltage to drop that Nexus voltage down so it will work at full charge.
> 
>    Were using the RF Analyzer program on the Nexus to play around with the HarkRF .
> 
>    Just some info . Hope it helps someone else.
> 
>  WB8LGA
>  Charles
> 
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