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Technical Topics => SDR - Software Defined Radio => Topic started by: K5KNT on November 11, 2013, 2050 UTC

Title: SdrDx Any Helpful Tips for A Newbie?
Post by: K5KNT on November 11, 2013, 2050 UTC

I've been trying HDSDR and SdrDx with my AFEDRI and I was wondering if anyone using SdrDx has some helpful tips.  I've been reading through the documentation but I'm not understanding some of it.

For example I really do not understand the purpose of or how to use the screen in the lower right hand corner.

Also, I posted a comment on the developer's site asking about scheduled recording. His reply

Quote

You can drive SdrDx’s recording facilities from a Python script; any schedule you like. Very simple to do, presuming you know a little bit about python.[\quote] Although I would like to learn Python I would like a more user friendly option.

Thanks,

Kent

Title: Re: SdrDx Any Helpful Tips for A Newbie?
Post by: ChrisSmolinski on November 11, 2013, 2059 UTC

The scope screen in the lower right can be used in many ways. I really only use one of them - the CAR button option to show the carrier frequency of a received AM station. So I can't offer any hints for using the other modes.

Title: Re: SdrDx Any Helpful Tips for A Newbie?
Post by: rdla4 on November 12, 2013, 0003 UTC

Likewise, the CAR window is used most.  Sometimes I use the WTF window (Not what you may think...) for placing notches or seeing where some sort of noise is distributed in the audio. I can then taylor the audio settings---LPF or HPF, BW etc to minimize undesirable noises etc.

Title: Re: SdrDx Any Helpful Tips for A Newbie?
Post by: K5KNT on November 16, 2013, 1646 UTC

Would any of you mind posting your settings for the "DSP", "SDR", and "DMD" buttons?  I'm trying to figure out where to set these at.  Mine currently are:

SDR: Bandwidth/sample rate -1800 KHz 20000 Ksps, RF Gain/Attn - 0 dB, SDRIQ IF Gain/Att - 24 dB, AFEDRI gain: -1, Post-Attenuator S-Metering is unchecked.

DSP: FTT Size - 16384 pts, FTT Averaging - 1, 2D Screen Size - 50%, Mouse Click Resolution - 50 Hz, Max Display Rate - 50 Updates/Sec, Highlight Button Text is checked, Freq Offset - 0.

DMD:
AM: AGC ON - Checked, Use Hang Timer - Unchecked, Slope 0, Knee - -120 dB, Decay - 20 mS, FM Squelch - just past the right edge of the CW Offset box, CW Offset - 0 Hz.
SAM: AGC ON - Checked, Use Hang Timer - Unchecked, Slope 0, Knee - -120 dB, Decay - 20 mS, FM Squelch - far left, CW Offset - 0 Hz.
FM: AGC ON - Checked, Use Hang Timer - Unchecked, Slope 0, Knee - -120 dB, Decay - 200 mS, FM Squelch - far left, CW Offset - 700 Hz.
USB: AGC ON - Checked, Use Hang Timer - Unchecked, Slope 0, Knee - -69 dB, Decay - 20 mS, FM Squelch - above the "H" in Hz on CW Offset, CW Offset - 500 Hz.
LSB: AGC ON - Checked, Use Hang Timer - Unchecked, Slope 0, Knee - -120 dB, Decay - 200 mS, FM Squelch - far left, CW Offset - 0 Hz.
CWU: AGC ON - Checked, Use Hang Timer - Unchecked, Slope 0, Knee - -120 dB, Decay - 20 mS, FM Squelch - far left, CW Offset - 64 Hz.
CWL: AGC ON - Checked, Use Hang Timer - Unchecked, Slope 0, Knee - -120 dB, Decay - 20 mS, FM Squelch - far left, CW Offset - 0 Hz.
 
Thanks,

Kent

Title: Re: SdrDx Any Helpful Tips for A Newbie?
Post by: fyngyrz on April 11, 2014, 0214 UTC

Timer script for playback or recording now available at fyngyrz.com on SdrDx download page.

--Ben
AA7AS