---
name: "freesrp-io"
section: "1"
platform: "linux"
package: "libfreesrp-dev"
version: "0.3.0-5+b2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/freesrp-io"
---

# freesrp-io(1)

FreeSRP signal I/O tool

## NAME

freesrp-io - FreeSRP signal I/O tool

## DESCRIPTION

usage: freesrp-io \[options\] **-ofilename**

-

  input/output format is complex signed 16-bit

### options:

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

  Print usage and exit

**-o\[filename\]**, **--out**=*\[filename\]* Output to specified file ('-o-' for stdout)

- **-i\[filename\]**, **--in**=*\[filename\]*

  Read from specified file ('-i-' for stdin)

- **--fpga=**/path/to/bitstream.bin

  Load the FPGA with the specified bitstream

- **-t**, **--tx**

  Enable the transmitter

- **-l**, **--loopback**

  Put transceiver in loopback mode

- **-f\[freq\]**, **--freq**=*\[freq\]*

  Center frequency in hertz (70e6 to 6e9)

- **-b\[bw\]**, **--bandwidth**=*\[bw\]*

  Bandwidth in hertz (1e6 to 61.44e6)

- **-g\[gain\]**, **--gain**=*\[gain\]*

  Gain in decibels (0 to 74)

example: freesrp-io **-f2**.42e9 **-b4e6** **-g30** **-o-**

## SEE ALSO

freesrv-ctl(1)