DSDPlus How To Make Spectrum Window Show A Smaller Bandwidth

[CanesFan95]

Is there a setting to make the spectrum window scope show a smaller slice of bandwidth? I'd like to make it show maybe a .5 MHz total amount of frequency spectrum from right to left. This would be helpful for crowded / busy segments like 460.0000 MHz and easier to click on the exact frequency that you want. Right now mine shows 3 MHz worth of spectrum and that's too much.

 

[slicerwizard]

No, and your IF gain is too high.

 

[CanesFan95]

Aye, bummer. Would be nice if there was a way. Well, I went ahead and lowered all 3 gains down to 10. And I tried something else in the FMPA.cfg file. The setting that says:

1024 ; spectrum window width

that FMP.txt says not to change. Well, I went ahead and tried changing it just to see what would happen.

I figured out that on my machine and Windows resolution setting, I can get it to stretch the full width of the monitor which helps a little bit so the frequency spikes aren't so narrow:

1270 ; spectrum window width

 

[slicerwizard]

And I tried something else in the FMPA.cfg file. The setting that says:

1024 ; spectrum window width

that FMP.txt says not to change. Well, I went ahead and tried changing it just to see what would happen.

And now we know how some folks are crashing their copies of FMPA...

 

[TheButcher]

I use SDR# ported via VAC to DSD+ FL. Works for me when looking for more digital signals. Then I use a separate .bat file to get FMP24 to talk to DSD+ FL. Also works great for me.

 

[vince48]

so how do you adjsut the "IF" for an Airspy?

 

[slicerwizard]

L key.

 

[vince48]

so how do you adjsut the "IF" for an Airspy?

L key.

Thank you Sir

 

[CanesFan95]

Welp, back to 1024. I figured out if you change that setting, the manual tuning will be off. If you hover the mouse pointer and click on a frequency, it'll tune to a slightly different frequency.