[Hackrf-dev] HackRF Jawbreaker Bugs

Russell Hande zefie at persona.cc
Wed Aug 7 02:58:34 EDT 2013


also regarding calibration, its not quite like the rtl. the RTL had a
set offset, so if it was off 500hz, it was off 500hz at 30mhz, and
500hz at 1000mhz. This is not the case with the Jawbreaker, as I
explained. So implementing a ppm offset for the SDRSharp plugin won't
quite solve the problem.

On Wed, Aug 7, 2013 at 2:55 AM, Russell Hande <zefie at persona.cc> wrote:

> Does the current firmware allow reading the current IF or only writing

> a new one? I'd gladly try to implement some sort of slider in the

> config dialog of the hackrf sdrsharp plugin so long as I can read the

> current IF and update it as needed.

>

> On Wed, Aug 7, 2013 at 2:53 AM, Michael Ossmann <mike at ossmann.com> wrote:

>> On Wed, Aug 07, 2013 at 02:49:29AM -0400, Russell Hande wrote:

>>>

>>> I'm just trying to figure out if there is an easier way than having to

>>> guess which IF won't misbehave at any given tune. Of course if it was

>>> that easy it could be implemented in the firmware.

>>

>> Indeed. Avoidance of the 1300/2600 MHz problem (and similar) could be

>> implemented in firmware, but avoidance of particular occupied harmonics

>> probably can't.

>>

>> If you were to add a knob to user software to adjust the IF in

>> real-time, it would go a long way toward allowing people to understand

>> and correct such problems.



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