Is There A Squelch on FMP24 - Fast Lane 2.155?

[AB9NN]

I have set-up two folders for two FMP24 instances running on two RTL-SDR dongles with 2 configuration files and two scan lists. Works better than expected but a few frequencies experience noise that SDR# would defeat with a squelch setting. In reviewing the FMP24 display I see the following:

FMP24 Scan FM 999.999 Step 5.0 BW 12.5 Gain 49.6 SQ

Is the "SQ" squelch and if so how does one enable it, disable it and set it's threshold - from within the scanlist files if possible as done with the BW (band width)?

 

[phyberoptics]

-q1 from the batch file or press q in the fmp24 window.

It’s all covered in fmp24.txt


Sent from my iPhone using Tapatalk

 

[AB9NN]

-q1 from the batch file or press q in the fmp24 window.

It’s all covered in fmp24.txt

Sent from my iPhone using Tapatalk

Thanks, tried typing "q" and I see it's a binary. Did a search for all "q" in my FMP.txt file from DSD+ Fast Lane 2.155 and it's not in there other than in the word "frequency", etc.. Are 1 and 0 the only values?

 

[BM82557]

I found this in the Notes.txt file -

Squelch logic has been added.

Use -q1 on the command line to enable squelch.

Press Q to enable/disable squelch.

Squelch sensitivity levels are fixed:

Manual tuning: uses loose squelch / will unmute on weak noisy signals

Scanning: uses tighter squelch / will not unmute on weak signals

 

[AB9NN]

THANKS! That explains why I didn't find it in the file someone said it was in. And it explains, probably, why on a particular frequency or two the scanner seems better behaved than one or two others that I have used - although it's certainly a step or two slower. But, I guess, if you find static real fast - was that a winner?

 

[phyberoptics]

Sorry, it's not in fmp.txt, but it is available by typing fmp24 -help.

Usage:
FMP24 [options] Normal operation
FMP24 -h Show help

Options:
-i<num> RTL SDR device number (1-255) [-i1]
-o<num> Output audio device (1-255) [-o1]
-o<port> Output audio TCP port (256-65535)
-g<num> RF gain (dB) [max]
-P<num> Frequency correction PPM value (-999.9-999.9) [-P0.0]
-a<num> Enable/disable auto center tuning (0-1) [-a1]
-q<num> Enable/disable squelch logic (0-1) [-q0]
-f<MHz> Initial tuned frequency [-f99.9]
-b<kHz> Initial RF filter bandwidth (4, 7, 9.5, 12.5, 22) [-b7]
-b-<kHz> Set initial RF filter bandwidth and ignore hints from DSD+
-t<num> Initial RF filter set (standard or tight) [-t0]
-u<num> Enable/disable unlicensed spectrum display (0-1) [-u0]
-z<num> Show zoomed spectrum (0-1) [-z1]
-n<num> Select noise filter (0-2) [-n0]
-v<num> Set volume level (0-500) [-v100]
-s<num> Enable/disable scanner mode (0-1) [-s0]
-y<num> Select spectrum survey list file (0-999) [-y0]
-wsl<v>.<h> Spectrum window location [-wsl50.50]
-_<num> Minimize windows at startup; bitmapped
-rc Role is trunk control/rest channel monitor
-rv Role is trunk voice channel monitor

Active keys:
0-9 . Enter set frequency
[/] select step size
Cursor </> step frequency
Ctrl Csr </> step frequency by 250 Hz

A toggle auto center tuning
D cycle audio demodulation mode
Q toggle squelch mode
U toggle unlicensed spectrum display mode
M toggle spectrum memory overlay
X reset spectrum memory
Z toggle spectrum zoom overlay
I select injection mode
b/B select RF bandpass filter
T select tight or standard RF bandpass filter set
N select noise filter
Cursor ^/v adjust volume level
spacebar toggle muting

g/G adjust RF gain
p/P adjust PPM frequency correction

R toggle raw I/Q and FM demod recording

S start scanner mode or exit hold mode
Y start spectrum survey
C start trunk control/rest channel following mode
V start trunk voice channel following mode

? list active keys
Esc exit scanner/survey/CC/VC modes or exit program

Left click on spectrum: retune

 

[AB9NN]

Thanks! So nice to have professional, clear concise help available when one wants to reach out for it. That command worked famously... A binary option as I figured from it's behavior. Onward!