Re: Signal Shown Mid-screen


Oh really - AirSpy does not function to specification, if at all, at that frequency.


On 20211109 22:28:21, George Stein - NJ3H via wrote:
Hi Simon,

Thanks for helping me.  Attached is the picture I believe you want.  Let me know if you need something else. I am seeing these spurs, depending on zoom factor, as I tune every 5 MHz.  In this case, I am not.  I have offset the cursor, for visibility purposes.

This issue happens on the Elad and Airspy.  I haven't checked other SRDs yet.

This situation did not occur in the last version I had installed. 3.0.28.  Hope this is easy to fix.

I slid the RF gain to zero and the spike at 19 MHz remained, while the other spikes disappeared.  For the picture it is at 6, which is what I have been using.

George, NJ3H
Redmond, Oregon USA

On Tuesday, November 9, 2021, 10:01:59 PM PST, Simon Brown <simon@...> wrote:



Make a screenshot with the Ribbon Bar’s Home panel visible, then I can see the radio settings. What we’re seeing in the centre could be a spur which can be eliminated.


Simon Brown, G4ELI


From: <> On Behalf Of George Stein - NJ3H via
Sent: 09 November 2021 22:57
Subject: [SDR-Radio] Signal Shown Mid-screen



I hope someone can help me with this issue. I am using SDRC version 3.1, Windows 10.

Please see the attached picture. I have offset the frequency so that one can see the signal in the picture.

Using an Airspy R2 with SDRC:
At 145.800 MHz there is an S7 signal.  However, if I move the frequency with the slide bars, the signal stays dead center left to right.  I am getting these signals in many places.  Using the SDR Sharp software, these signals are not there. 

Using an Elad S2 with SDRC:
I am seeing many of these signals similar to the R2 situation described above.

If I look outside the 2 meter band, I see these signals every 5 or 10 MHz.  If my zoom is increased, then I have seem them every 100 KHz.

This situation does not occur with the particular SDR's native software.

Can anyone offer any ideas to correct this situation?

Please let me know if you need any different views.

George, NJ3H
Redmond, Oregon USA

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