1RIGSWR(1) Hamlib Utilities RIGSWR(1)
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6 rigswr - measure VSWR vs frequency.
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9 rigswr [-hvV] [-m id] [-r device] [-s baud] [-c id] [-C parm=val]
10 [-p device] [-P type] start_freq stop_freq [freq_step]
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14 rigswr uses Hamlib to control a radio to measure VSWR (Voltage Standing
15 Wave Ratio) over a frequency range.
16 It scans frequencies from start_freq to stop_freq with an optional
18 increment of freq_step (default step is 100 kHz). All values must be
19 entered as an integer in Hertz (cycles per second).
20 Note: rigswr assumes that start_freq is less than or equal to
22 stop_freq. If it is greater, rigswr will exit without doing anything.
23 For each frequency, it transmits at 25% of total POWER during 0.5
25 second in CW mode and reads VSWR.
26 Frequency and the corresponding VSWR are then printed on stdout.
28 To work correctly, rigswr needs a radio that can measure VSWR and a
30 Hamlib backend that supports reading VSWR from the radio.
31 Keep in mind that Hamlib is BETA level software. While a lot of
33 backend libraries lack complete radio support, the basic functions are
34 usually well supported.
35 Please report bugs and provide feedback at the e-mail address given in
37 the BUGS section below. Patches and code enhancements sent to the same
38 address are welcome.
39
41 This program follows the usual GNU command line syntax. Short options
42 that take an argument may have the value follow immediately or be
43 separated by a space. Long options starting with two dashes (‘-’)
44 require an ‘=’ between the option and any argument.
45 Here is a summary of the supported options:
47 -m, --model=id
49 Select radio model number.
50 See model list (use “rigctl -l”).
52 -r, --rig-file=device
54 Use device as the file name of the port connected to the radio.
55 Often a serial port, but could be a USB to serial adapter.
57 Typically /dev/ttyS0, /dev/ttyS1, /dev/ttyUSB0, etc. on Linux,
58 COM1, COM2, etc. on MS Windows. The BSD flavors and Mac OS/X
59 have their own designations. See your system's documentation.
60 -s, --serial-speed=baud
62 Set radio serial speed to baud rate.
63 Uses maximum serial speed from radio backend capabilities as the
65 default.
66 -c, --civaddr=id
68 Use id as the CI-V address to communicate with the radio.
69 Only useful for Icom and some Ten-Tec radios.
71 Note: The id is in decimal notation, unless prefixed by 0x, in
73 which case it is hexadecimal.
74 -C, --set-conf=parm=val[,parm=val]
76 Set radio configuration parameter(s), e.g. stop_bits=2.
77 Use the -L option of rigctl for a list of configuration
79 parameters for a given model number.
80 -p, --ptt-file=device
82 Use device as the file name of the Push-To-Talk port using a
83 device file as with the -r option above.
84 This is only needed if the radio doesn't have CAT PTT control
86 and requires a separate device port to key the transmitter.
87 -P, --ptt-type=type
89 Use type of Push-To-Talk device.
90 Supported types are RIG (CAT), DTR, RTS, PARALLEL, NONE.
92 -v, --verbose
94 Set verbose mode, cumulative (see DIAGNOSTICS below).
95 -h, --help
97 Show a summary of these options and exit.
98 -V, --version
100 Show version of rigswr and exit.
101 Note: Some options may not be implemented by a given backend and will
103 return an error. This is most likely to occur with the --set-conf
104 option.
105
107 The -v, --verbose option allows different levels of diagnostics to be
108 output to stderr and correspond to -v for BUG, -vv for ERR, -vvv for
109 WARN, -vvvv for VERBOSE, or -vvvvv for TRACE.
110 A given verbose level is useful for providing needed debugging
112 information to the email address below. For example, TRACE output
113 shows all of the values sent to and received from the radio which is
114 very useful for radio backend library development and may be requested
115 by the developers.
116
118 rigswr exits with:
119 0 if all operations completed normally;
121 1 if there was an invalid command line option or argument;
123 2 if an error was returned by Hamlib;
125 3 if the rig doesn't have the required capabilities.
127
129 Scans frequencies between 14.000 MHz and 14.200 MHz with 50 kHz step on
130 a TS-850 and records VSWR measurements in file cswr.
131 rigswr -m 209 -r /dev/ttyS1 14000000 14200000 50000 > cswr
133 After completion, cswr file contains the following lines:
135 14000000 1.50
137 14050000 1.31
138 14100000 1.22
139 14150000 1.07
140 14200000 1.07
141 The result can be plotted with gnuplot(1):
143 gnuplot
145 set data style linespoints
146 set grid
147 plot cswr
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150 Depending on keyer/QSK setup, transmissions in CW mode may not be modu‐
151 lated thus possibly giving a wrong result. Please report this situation
152 if it happens.
153 Report bugs to:
155 Hamlib Developer mailing list
157 ⟨hamlib-developer@lists.sourceforge.net⟩
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160 This file is part of Hamlib, a project to develop a library that sim‐
161 plifies radio, rotator, and amplifier control functions for developers
162 of software primarily of interest to radio amateurs and those inter‐
163 ested in radio communications.
164 Copyright © 2004 Thierry Leconte
166 Copyright © 2004-2011 Stephane Fillod
167 Copyright © 2007,2018,2019 Nate Bargmann
168 This is free software; see the file COPYING for copying conditions.
170 There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
171 PARTICULAR PURPOSE.
172
174 gnuplot(1), rigctl(1), hamlib(7)
175
177 Links to the Hamlib Wiki, Git repository, release archives, and daily
178 snapshot archives:
179 hamlib.org ⟨http://www.hamlib.org⟩.
181Hamlib 2019-12-10 RIGSWR(1)