[Hackrf-dev] HACKRF support added to OpenCL TDD/FDD LTE Cell Searcher Tracker!

[Jiao Xianjun]

I haven't measured it. 820t tuner also causes that issue if I recall
correctly.
During that period, I searched Internet and found someone mentioned
possibility of power supply. It did work after I used dock. Amazing.
These two dongles always work fine in my desktop computer. This reflects
the issue indirectly, because desktop has enough port power, doesn't chase
low power usually.


Maybe it is also related to kind of "startup current" things (instead of
total power consumption)? Just a guess.




On Mon, Apr 14, 2014 at 7:55 AM, Michael Ossmann <mike at ossmann.com> wrote:


> On Sat, Apr 12, 2014 at 04:32:53PM +0800, Jiao Xianjun wrote:

> >

> > 2. lower power consumption. (For Thinkpad T410, I have to use the

> > laptop dock to ensure enough power supply to the E4K dongle. If the

> > dongle is plugged to T410 directly, it would be very unstable.

> > Sometimes driver crashed, sometimes computer lost responses... While

> > hackrf can be used freely with my T410 every where without dock, even

> > without AC adapter).

>

> That is interesting and a bit surprising.  Have you measure the power

> consumption of your E4K dongle?  I wonder if the instability might have

> to do with something other than power.

>

> Mike

>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://nine.pairlist.net/pipermail/hackrf-dev/attachments/20140414/c7e35021/attachment.htm