DSDPlus Squelch control for DSD + Fastlane

K5uf

Member
Premium Subscriber
Joined
Nov 17, 2024
Messages
11
Location
Belmont ms
I am using a RSP1B sdr along with DSD + Fastlane. To start it up I activate 1R and then FMPP-CC. I can get some P25 activity but the constant white noise is becoming a
nuisance. One post said to hit the space bar (mute) for squelch but it will cut out the noise but will not allow P25 get thru the mute. Any ideas on how to activate a squelch? Must warn you up front no computer whiz.
 

dave3825

* * * * * * * * * * * *
Premium Subscriber
Joined
Feb 17, 2003
Messages
9,438
Location
Suffolk County NY
That's in FMP24
-q<num> Enable/disable squelch logic (0-1) [-q0]
active
Q toggle squelch mode


Q or q are not a selection in FMPP

FMPP 1.24

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

Options:
-i<num> SDRPlay device number (1-255) [-i1]
-o<num> Output audio device (1-255) [-o1]
-o<linkID> Output audio DSD+ Link ID (256-65535)
-oT<port> Output audio TCP port (256-65535)
-A<num> RSP2 antenna select (1-2) [-A1]
-N<num> Enable/disable RSP2 notch filters (0-1) [-N0]
-L<num> LNA gain (0-8) [-L8]
-M<num> IF gain (0-59) [-M30]
-T<num> Enable/disable RSP1a/RSP2 bias tee (0-1) [-T0]
-f<MHz> Initial tuned frequency [-f99.9]
-b<kHz> Initial filter bandwidth (4, 7.6, 9.5, 12.5, 22) [-b7]
-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]
-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

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 bandpass filter
F select noise filter
Cursor ^/v adjust volume level
spacebar toggle muting

A toggle RSP2 antenna select
O toggle RSP2 notch filters
j/J adjust LNA gain
k/K adjust IF gain

R toggle raw I/Q and FM demod recording

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

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

Left click on spectrum: retune

What do you have source audio set to?

1735315204461.png
 

K5uf

Member
Premium Subscriber
Joined
Nov 17, 2024
Messages
11
Location
Belmont ms
That's in FMP24
-q<num> Enable/disable squelch logic (0-1) [-q0]
active
Q toggle squelch mode


Q or q are not a selection in FMPP



What do you have source audio set to?

View attachment 175159
input shows hi fi cable (vb audio)
line 7 usb audio codec
none can be accessed by hitting enter on them/ normal i guess
use direct fmpx linking is checked
moni source audio always is checked
I have been having some success is using the space bar to start a squelch function as long as someone is talking on p25 at the time. Works about 75% of the time. Much better than 0% of the time
 

K5uf

Member
Premium Subscriber
Joined
Nov 17, 2024
Messages
11
Location
Belmont ms
input shows hi fi cable (vb audio)
line 7 usb audio codec
none can be accessed by hitting enter on them/ normal i guess
use direct fmpx linking is checked
moni source audio always is checked
I have been having some success is using the space bar to start a squelch function as long as someone is talking on p25 at the time. Works about 75% of the time. Much better than 0% of the time
Very much appreciate you folks taking your time to assist.
 

dave3825

* * * * * * * * * * * *
Premium Subscriber
Joined
Feb 17, 2003
Messages
9,438
Location
Suffolk County NY
Think your settings are off a bit. Can you post a pic showing the input, output and control tabs like this?



1735397078697.png 1735396971941.png 1735397028464.png
 

K5uf

Member
Premium Subscriber
Joined
Nov 17, 2024
Messages
11
Location
Belmont ms
hope you are able to decipher these
 

Attachments

  • IMG_2622.jpg
    IMG_2622.jpg
    43.6 KB · Views: 16
  • IMG_2623.jpg
    IMG_2623.jpg
    64.6 KB · Views: 15
  • IMG_2624.jpg
    IMG_2624.jpg
    59.3 KB · Views: 14

K5uf

Member
Premium Subscriber
Joined
Nov 17, 2024
Messages
11
Location
Belmont ms
Im proud to report that fix is working perfectly! Thank you kindly for helping the computer illiterate ole man! Let me ask you another question...on your output page you have the add talkgroup and add radio alias checked. What does having those checked do?
 

dave3825

* * * * * * * * * * * *
Premium Subscriber
Joined
Feb 17, 2003
Messages
9,438
Location
Suffolk County NY
1735408762834.png

In DSDPlus, you can have your session recorded in one large wav or mp3, or into individual wav or mp3 files.

Checking those boxes adds the tg and radio aliases to the recorded mp3's.
 
Top