---
name: "osmoradio"
section: "1"
platform: "linux"
package: "osmocom-analog"
version: "0.0~git20250208.4ebf64f-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/osmoradio"
---

# osmoradio(1)

http://osmocom-analog.eversberg.eu/docs/

## NAME

**osmoradio** - http://osmocom-analog.eversberg.eu/docs/

## SYNOPSIS

**osmoradio** *--sdr-soapy\|--sdr-uhd \<sdr options\> -f \<frequency\> -M \<modulation\> -R\|-T* \[*options*\]

### options:

**-h** **--help**

-

  This help

**--config** \[~/\]\<path to config file\>

-

  Give a config file to use. If it starts with '~/', path is at home dir. Each line in config file is one option, '-' or '--' must not be given!

**-f** **--frequency** \<frequency\>

-

  Give frequency in Hertz.

**-s** **--samplerate** \<sample rate\>

-

  Give signal processing sample rate in Hz. (default = 100000) This sample rate must be high enough for the signal's spectrum to fit. I will inform you, if this bandwidth is too low.

**-r** **--tx-wave-file** \<filename\>

-

  Input transmitted audio from wave file

**-w** **--rx-wave-file** \<filename\>

-

  Output received audio to wave file

**-a** **--audio-device** hw:\<card\>,\<device\>

-

  Input audio from sound card's device number

**-M** **--modulation** fm \| am \| usb \| lsb

-

  fm = Frequency modulation to be used for VHF. am = Amplitude modulation to be used for long/medium/short wave. usb = Amplitude modulation with upper side band only. lsb = Amplitude modulation with lower side band only.

**-R** **--rx**

-

  Receive radio signal.

**-T** **--tx**

-

  Transmit radio signal.

**-B** **--bandwidth**

-

  Give bandwidth of audio frequency. (default AM=4500 FM=15000)

**-D** **--deviation**

-

  Give deviation of frequency modulated signal. (default 75000)

**-I** **--modulation-index** 0..1

-

  Give modulation index of amplitude modulated signal. (default 1)

**-E** **--emphasis** \<uS\> \| 0

-

  Use given time constant of pre- and de-emphasis for frequency modulation. Give 0 to disable emphasis. (default = 50 uS) VHF broadcast 50 uS in Europe and 75 uS in the United States. Other radio FM should use 530 uS, to cover complete speech spectrum.

**-V** **--volume** 1.000

-

  Change volume of radio side. (Gains transmission, dampens reception)

**-S** **--stereo**

-

  Enables stereo carrier for frequency modulated UHF broadcast. It uses the 'Pilot-tone' system.

**--fast-math**

-

  Use fast math approximation for slow CPU / ARM based systems.

**--limesdr**

-

  Auto-select several required options for LimeSDR

**--limesdr-mini**

-

  Auto-select several required options for LimeSDR Mini

### SDR options:

**--sdr-soapy**

-

  Force SoapySDR driver

**--sdr-channel** \<channel #\>

-

  Give channel number for multi channel SDR device (default = 0)

**--sdr-device-args** \<args\>

**--sdr-stream-args** \<args\>

**--sdr-tune-args** \<args\>

-

  Optional SDR device arguments, separated by comma e.g. **--sdr-device-args** \<key\>=\<value\>\[,\<key\>=\<value\>\[,...\]\]

**--sdr-samplerate** \<samplerate\>

-

  Sample rate to use with SDR. By default it equals the regular sample rate.

**--sdr-lo-offset** \<Hz\>

-

  Give frequency offset in Hz to move the local oscillator away from the target frequency. (default = **-1000000**)

**--sdr-bandwidth** \<bandwidth\>

-

  Give IF filter bandwidth to use. If not, sample rate is used.

**--sdr-rx-antenna** \<name\>

-

  SDR device's RX antenna name, use 'list' to get a list

**--sdr-tx-antenna** \<name\>

-

  SDR device's TX antenna name, use 'list' to get a list

**--sdr-clock-source** \<name\>

-

  SDR device's clock sourc name, use 'list' to get a list

**--sdr-rx-gain** \<gain\>

-

  SDR device's RX gain in dB (default = 0.0)

**--sdr-tx-gain** \<gain\>

-

  SDR device's TX gain in dB (default = 0.0)

**--write-iq-rx-wave** \<file\>

-

  Write received IQ data to given wave file.

**--write-iq-tx-wave** \<file\>

-

  Write transmitted IQ data to given wave file.

**--read-iq-rx-wave** \<file\>

-

  Replace received IQ data by given wave file.

**--read-iq-tx-wave** \<file\>

-

  Replace transmitted IQ data by given wave file.

**--sdr-swap-links**

-

  Swap RX and TX frequencies for loopback tests over the air.

**--sdr-timestamps** 1 \| 0

-

  Use TX timestamps on UHD device. (default = 1)