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Question for SdrDx Users

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K5KNT:
I'm using the Windows version, but I think this question isn't OS specific.

In the lower left corner is a window that after starting the software displays "AFEDRI-SDR Connected" - I'm using an AFEDRI SDR-Net. After selecting "Run" This windows displays "AFEDRI-SDR Running 120ppm MP=-4837".

Can someone explain what the "ppm" and "MP" mean and is there a certain value I should strive for?  The SDR is connected via ethernet.  I'm running Windows 10, if that makes any difference.

Thanks.

Kent

Token:
I am not 100% sure, but I think these are just status indicators, nothing you can change.  The first part is clear, it is connected to an AFEDRI-SDR.  I think the second part is drift in ppm based on temp, but I am not sure, at least mine seems to follow temp.  The third, the MP, I think is missed packets.  Mine always misses a bunch of packets on startup, so the number climbs when I light the thing off and then stops.

T!

ChrisSmolinski:
Ideally, both should be as close to zero as possible. I usually see a ppm value of around 10 or so. I would worry more about the large MP (missed packets) value, especially if it is growing, which could indicate you have a networking problem causing a lot of lost data, or your machine is overtasked. Mine always reads zero.

You should have the SDR connected to a dedicated ethernet port on your computer, rather than the shared ethernet you use for your internet connection.

K5KNT:
Thanks for the replies. Following an uninstall along with cleaning out my registry, I just installed the latest version (2.17r). When I first start it, I'm getting a missed packet reading in the hundreds, but if I stop and restart then the Missed packets go to zero. the ppm reading begins around -90 now but drops to about -15 to -30 over time.

Chris - I only have one ethernet port on my computer, should I connect the SDR to the computer and then connect the computer to the internet via wifi?

ChrisSmolinski:
You could give that a try, and see if it helps.  While I see Token reports missed packets when he first starts run mode, I have never encountered that here, either with the AFE822 nor the netSDR.

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