Airspy R2

[David Leiken]

I’m trying to configure a Airspy R2 for a 700MHZ P2 P25 system. The system I’m trying to monitor is near by. The default tuner settings for this tuner are not working. What are the ideal settings for this setup? I’m using beta 0.6.0 Beta 2

[Nate]

What is happening when you try?

No signal at all or no audio?

I have a n R2 and other than loading the jmbe library and running the cpu vector calibration i have made no changes short of adding channels.

That and make sure windows is seeing it correctly in device manager. It should show up under "Universal Serial Devices" at the very bottom in device manager and it should show as an "Airspy R2"

On Fri, Nov 3, 2023 at 8:13 AM David Leiken <david...@gmail.com> wrote:

I’m trying to configure a Airspy R2 for a 700MHZ P2 P25 system. The system I’m trying to monitor is near by. The default tuner settings for this tuner are not working. What are the ideal settings for this setup? I’m using beta 0.6.0 Beta 2

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[David Leiken]

It does not lock on a control channel. I have not ran a cpu vector calibration yet. I will try that.

Sent from my iPhone

On Nov 3, 2023, at 10:30 AM, Nate <na...@natesnetwork.com> wrote:



[sdrtrunk]

Can you please post a screenshot that shows the signal and channel that you're trying to decode?

[David Leiken]

I ran the CPU vector calibration and it now works. The only issue I’m having now is that my computers CPU is running very high compared to when I was running 7 dongles at 1.2 MHZ. I have the Airspy R2 set for 10 MHZ

Sent from my iPhone

On Nov 3, 2023, at 10:30 AM, Nate <na...@natesnetwork.com> wrote:



[Nate]

Good to hear its working.

7 dongles at 1.2 MHZ is 8.4 MHZ.

Now you are running 10 MHZ, or another dongles worth and a bit, so its more to crunch.

And its constant 10MHZ some control channels all the time and the occasional talk channel, now you are crunching 10MHZ all the time.

Before it was just your control channel all the time and the talk channels when they are in use.

(I am not an expert, i could be wrong on this, hope someone else confirms or corrects, but ive also dabbled for many years)

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