Re: Keep current frequency always in the center?

Brandon Jordan <>

I agree that the ability to keep the tuned frequency centered should definitely be added. This is one of the biggest annoyances I have using the application.

I also agree about 'zooming'. There should definitely be the ability to zoom in on a frequency ala Perseus. It would also be very helpful to include peak markers similar to those in Spectravue (and Perseus).


On 8/25/2010 7:26 AM, Mauno Ritola wrote:
Could this be made optional ro something? At least I have no use for
the waterfall, if the tuned frequency doesn't keep in the centre, at
least when zoomed. Also zooming should go deeper, if one wants to see
close carriers.

Best regards,


25.8.2010 15:18, David Messing kirjoitti:

I am opposite in thinking to Rado. I much prefer the display of the
waterfall exactly the way it presently is.
_When looking at the the bottom bar showing the 200 kHz bandwidth_, on
75 meters I know I am looking at the specturm of 3.8 to 4.0 mHz. That
bottom bar is wonderful in concept. When on a shortwave broadcast
band, same thing.

Looking at the waterfall, based on the bottom bar, I know where I am
at all times. I hated the way Spectra Vue locked it in the center.
That is why I used Winrad over it, then when SDR Console came along it
too didn't lock the frequency in the center.

There is only one good thing about Spectra Vue, its AM broadcast audio
is excellent.

The problem with locking the waterfall to the center frequency is when
it is an odd ball frequency, it is hard to eyeball the with accuracy
the other frequencies.

I do not want to loose this great concept, exactly the way it is!


Nebraska City

On Wed, Aug 25, 2010 at 6:33 AM, gurljo<gurljo@...
<mailto:gurljo@...>> wrote:

Hi Everyone,

This is my first time posting here, so let me express my awe and
respect to Simon for his efforts and the great work he is doing
with SDR-radio. It is shaping up to be an amazing alternative for
RFSpace product users (like me) and I am sure to many other people
with different hardware.

Sorry if my question has been answered already, I searched but
could not find related posts.
So here goes my question - Is there a way to lock the currently
received frequency to always stay in the center of the
spectrum/waterfall (or more precisely the lock the spectrum around
the current frequency) ? Like in Spectravue, so when tuning the
receiver the spectrum is always centered around the current frequency?
I have searched around SDR-radio's options but could not find such
an option. At present the marker has to go over the edge of the
spectrum for it to jump to the next segment (+- 50 kHz ?!?). So
tuning around the bands is kind of "jumpy".

All the best,


PS. I am using SDR-radio with SDR-IQ.

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