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Re: Regarding missing osmocom source

From: Fabian Schwartau
Subject: Re: Regarding missing osmocom source
Date: Wed, 18 Nov 2020 11:32:56 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0

I cannot open the grc file, it complains with some parsing error.
However, I am wandering what you did in the screenshot. That makes no
sense to me. You have the BladeRF at 2.4 GHz center frequency with a
sample rate of 61.44 MHz (is that supported by the BladeRF?). Even if,
why are you generating an additional signal with a Frequency of -2.4GHz
at a sample rate of 61.44 MHz? It is certainly possible to do that, but
I think it is not your intention. The signal coming from the Osmocom
source is centered around 2.4 GHz, thus a frequency of 0 corresponds to
2.4 GHz. Remove the "Signal Source" and just display the received
spectrum. On the TX side set the osmocom sink to 2.4 GHz and set the
signal source you use to feed the osmocom sink with to something like 1
MHz. Now you should see a signal at 1 MHz in the receiver.

Best regards,

Am 18.11.20 um 11:20 schrieb Rozana Alam:
> Hello community,
> I am trying to transmit  continuous waves (CW signal)  using bladeRF
> through gnu-radio. i can see the transmitting signal through QT-Gui but
> i can't receive the signal in network analyser. In the gnu block i have
> used signal source and osmocom sink to transmit signal. I am attaching
> my grc file and snapshots for your reference. I would really appreciate
> your help.
> Sincerely,
> Rozana
> On Wed, Nov 4, 2020 at 4:39 PM Rozana Alam <rozana.alam0@gmail.com
> <mailto:rozana.alam0@gmail.com>> wrote:
>     Hello community,
>     I want to generate simple continuous wave with bladeRF using gnu
>     radio and am a Linux user.but in the gnu platform I am not getting
>     any osmocom source.i have downloaded the gnu from ppa .is there any
>     supplement of osmocom source to generate signal by bladeRF?
>     Your suggestions are highly appreciated.
>     Best regards,
>     Rozana.

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