[Hackrf-dev] Constallation plot
Vitor Augusto
vitorafsr at gmail.com
Fri Nov 7 17:56:05 EST 2014
Well, Mike, my test setup is below. But I only want an advice if I
should buy another antenna for 1GHz. At least if another antenna will
give me better results at 1GHz (or not, just similar results). I am
working in a project and I need to operate at 1GHz.
* software compiled from source with the version from "Tue Nov 4
23:37:38 2014 -0700"
* spi flash firmware and cpld updated with this version
* laptop with Linux Ubuntu 14.10
* I'm in the fifth floor with a open view; the closest building in
front of me is at least 1km
* GNU Radio Companion 3.7.3
* gr-osmosdr version 0.1.1.4.ac95af2-1
* grc with file below
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<timestamp>Fri Nov 7 19:42:36 2014</timestamp>
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On Fri, Nov 7, 2014 at 8:13 PM, Michael Ossmann <mike at ossmann.com> wrote:
> On Fri, Nov 07, 2014 at 08:02:56PM -0200, Vitor Augusto wrote:
>>
>> I did some screenshots (link below) with signal seen with
>> constallation plot over the range 330MHz-380MHz. By now, my antenna
>> works in the range 75MHz-330MHz. Is that right? I do need to by
>> another one if I want to work at ~1GHz?
>
> 1 GHz is at the top end of the ANT500 frequency range when the antenna
> is fully collapsed. It generally performs better at the lower end than
> at the higher end, but it should be usable at 1 GHz.
>
> If you want any help interpreting your results, you'll have to provide a
> lot more information about your test setup.
>
> Mike
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