Forum: GNU Radio QT Sink center frequency not working

2474e637cd95190b38f78b5655f795e2?d=identicon&s=25 Nowlan, Sean (Guest)
on 2014-06-20 23:42
(Received via mailing list)
Attachment: qt_sink_test.grc (6 KB)
Setting the center frequency in the QT Sink doesn't seem to work. It
stays centered at 0 Hz. Center frequency seems to work fine with regular
QT Frequency Sink. GNU Radio version is v3.7.4git-332-g34ee3b7d. I
attached a GRC file.

Sean
?
C539637020fd56193dd6daec746c4a84?d=identicon&s=25 Tom Rondeau (Guest)
on 2014-06-23 16:32
(Received via mailing list)
On Fri, Jun 20, 2014 at 5:41 PM, Nowlan, Sean
<Sean.Nowlan@gtri.gatech.edu>
wrote:

>  Setting the center frequency in the QT Sink doesn't seem to work. It
> stays centered at 0 Hz. Center frequency seems to work fine with regular QT
> Frequency Sink. GNU Radio version is v3.7.4git-332-g34ee3b7d. I attached
> a GRC file.
>
>  Sean
>


Hmm... just tested your example GRC file here and it worked fine for me.

Tom
2474e637cd95190b38f78b5655f795e2?d=identicon&s=25 Nowlan, Sean (Guest)
on 2014-06-23 17:22
(Received via mailing list)
On Fri, Jun 20, 2014 at 5:41 PM, Nowlan, Sean
<Sean.Nowlan@gtri.gatech.edu<mailto:Sean.Nowlan@gtri.gatech.edu>> wrote:
Setting the center frequency in the QT Sink doesn't seem to work. It
stays centered at 0 Hz. Center frequency seems to work fine with regular
QT Frequency Sink. GNU Radio version is v3.7.4git-332-g34ee3b7d. I
attached a GRC file.

Sean


Hmm... just tested your example GRC file here and it worked fine for me.

Tom

Strange. I’m using the latest git revision on master. PyQt4 version is
4.10.4. Any other ideas?

Sean
2474e637cd95190b38f78b5655f795e2?d=identicon&s=25 Nowlan, Sean (Guest)
on 2014-06-24 12:47
(Received via mailing list)
Well, that would help, wouldn’t it! D’oh. Thanks!

Sean

From: Nowlan, Sean
Sent: Monday, June 23, 2014 1:39 PM
To: 'Tom Rondeau'
Subject: RE: [Discuss-gnuradio] QT Sink center frequency not working

Ah. The shame. Thanks!

From: trondeau@trondeau.com<mailto:trondeau@trondeau.com>
[mailto:trondeau@trondeau.com] On Behalf Of Tom Rondeau
Sent: Monday, June 23, 2014 11:23 AM
To: Nowlan, Sean
Subject: Re: [Discuss-gnuradio] QT Sink center frequency not working

Stupid question, but you are clicking the "Display RF Frequencies" check
box, right?

Tom


On Mon, Jun 23, 2014 at 11:21 AM, Nowlan, Sean
<Sean.Nowlan@gtri.gatech.edu<mailto:Sean.Nowlan@gtri.gatech.edu>> wrote:
On Fri, Jun 20, 2014 at 5:41 PM, Nowlan, Sean
<Sean.Nowlan@gtri.gatech.edu<mailto:Sean.Nowlan@gtri.gatech.edu>> wrote:
Setting the center frequency in the QT Sink doesn't seem to work. It
stays centered at 0 Hz. Center frequency seems to work fine with regular
QT Frequency Sink. GNU Radio version is v3.7.4git-332-g34ee3b7d. I
attached a GRC file.

Sean


Hmm... just tested your example GRC file here and it worked fine for me.

Tom

Strange. I’m using the latest git revision on master. PyQt4 version is
4.10.4. Any other ideas?

Sean
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