---
name: "grgsm_livemon"
section: "1"
platform: "linux"
package: "gr-gsm"
version: "1.0.0~20220727-1+b18"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/grgsm_livemon"
---

# grgsm\_livemon(1)

GSM C0 monitor forwarding packages to network interface

## NAME

grgsm\_livemon - GSM C0 monitor forwarding packages to network interface

## SYNOPSIS

grgsm\_livemon \[options\]

## DESCRIPTION

Interactive monitor of a single C0 channel with analysis performed by Wireshark.  Example command to run wireshark:

sudo wireshark -k -f udp -Y gsmtap -i lo

## OPTIONS

- **-h, --help**

  show this help message and exit

- **--args=***ARGS*

  Set Device Arguments \[default=\]

- **-g** *GAIN,* **--gain=***GAIN*

  Set gain \[default=30\]

- **--osr=***OSR*

  Set OverSampling Ratio \[default=4\]

- **-p** *PPM,* **--ppm=***PPM*

  Set ppm \[default=0\]

- **-s** *SAMP\_RATE,* **--samp-rate=***SAMP\_RATE*

  Set samp\_rate \[default=2M\]

- **-o** *SHIFTOFF,* **--shiftoff=***SHIFTOFF*

  Set Frequency Shiftoff \[default=400k\]

- **-f** *FC,* **--fc=***FC*

  Set GSM channel's central frequency \[default=941.8M\]

## SEE ALSO

- •

   \<https://github.com/ptrkrysik/gr-gsm/\>

- •

  **grgsm\_scanner(1)**

## AUTHOR

Piotr Krysik - ptrkrysik@gmail.com

## COPYRIGHT

public domain