rigsmtr man page

rigsmtr — measure S-Meter vs azimuth using Hamlib


rigsmtr [OPTION]... [time_step]


rigsmtr uses Hamlib to control a rig to measure S-Meter vs azimuth:
It rotates the antenna from minimum azimuth to maximum azimuth. Every second or time_step if specified in seconds, it retrieves the signal strength.
Azimuth in degree and corresponding S-Meter level in dB relative to S9 are then printed on stdout.
To work correctly, rigsmtr needs a rig that could measure S-Meter and a Hamlib backend that  is able to get it, mounted on a Hamlib supported rotator.

Keep in mind that Hamlib is still BETA level software.  A lof of stuff hasn't been tested thoroughly, and the API may change without publicised notice. Please report bugs and feedback at the e-mail address given in the Reporting Bugs section.


This program follow the usual GNU command line syntax, with long options starting with two dashes (`-'). A summary of options is included below.

-m, --model=id

Select radio model number. See model list provided by rigctl.

-r, --rig-file=device

Use device as the file name of the radio to operate on.

-s, --serial-speed=baud

Set radio serial speed to baud rate. Uses maximal rig speed as default.

-c, --civaddr=id

Use id as the CI-V address to communicate with the rig.  Only for Icom rigs. NB: the id is in decimal, unless prefixed by 0x, in which case it is hexadecimal.

-C, --set-conf=parm=val[,parm=val]*

Set radio config parameter. See -L option of rigctl for a list.

-M, --rot-model=id

Select radio model number. See model list provided by rotctl.

-R, --rot-file=device

Use device as the file name of the rotator to operate on.

-S, --rot-serial-speed=baud

Set rotator serial speed to baud rate. Uses maximal speed as default.

-N, --rot-set-conf=parm=val[,parm=val]*

Set rotator config parameter. See -L option of rotctl for a list.

-v, --verbose

Set verbose mode, cumulative (BUG, ERR, WARN, VERBOSE, TRACE).

-h, --help

Show summary of options and exit.

-V, --version

Show version of program and exit.

Return Value

rigsmtr exits with: 0 if all operations went fine; 1 if there was an invalid command line option or arg; 2 if an error was returned by Hamlib; 3 if the rig doesn't have the required capabilities.


rigsmtr -m 209 -r /dev/ttyS1 -M 202 > csmtr

Collect S-Meter readings on a TS850 while an EasycommII rotator makes a  full 360°, and record measurements in file csmtr.
After completion, csmtr file contains for example the following lines :
 0 -47
 30 -40
 60 -22
 90 -3
 120 10
 150 1
 180 -11
 210 -24
 240 -35
 270 -42
 300 -48
 330 -51
 360 -49

Result could then be ploted with gnuplot:

set angles degrees
set polar
set grid polar 15.
unset border
unset param
set style data line
set rrange [-60:60]
set xrange [-60:60]
set yrange [-60:60]
plot "csmtr"


Man page written by Stephane Fillod.


Need more testing. Reports are welcome.

Reporting Bugs

Report bugs to <hamlib-developer@users.sourceforge.net>.

See Also

rigctl(1), rotctl(1), hamlib(3)


January 5, 2008 Hamlib