[Hackrf-dev] HackRF USB voltage

Jay Bougie jaybougie at gmail.com
Sun Dec 21 11:06:34 EST 2014


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> 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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>
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