11-23-2007
wtmp or utmp commands
"last" command may be helpful to you
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LEARN ABOUT DEBIAN
transcalc
transcalc(1) General Commands Manual transcalc(1)
NAME
transcalc -- analysis and synthesis tool for microwave and RF transmsision lines
SYNOPSIS
transcalc [-h/--help] [-v/--version]
DESCRIPTION
transcalc is an analysis and synthesis tool for calculating the electrical and physical properties of different kinds of RF and microwave
transmission lines.
Transcalc allows you to interactively edit substrate, component, physical and electrical parameters of a given transmission line. For each
type of transmission line, using entry boxes, you can enter values for the various parameters, and either calculate its electrical proper-
ties (press Analyze button or function key F3), or use the given electrical requirements to sythesize (press Synthesize button or function
key F4) physical parameters of the required transmission line.
When run for the first time Transcalc creates a .transcalc directory under the user's home directory, where some configuration infor-
mation is stored. Transcalc remembers the last transmission line parameters used when the user exits and presents those parameters when
restarted.
Calculated results are updated and presented within the user interface. Moving the mouse over the parameter labels pops up a more helpful
tooltip about that parameter. For example, if you wonder what "Er" stands for, move the mouse over it and a helpful tooltip tells you that
it stands for relative permittivity.
Transcalc knows and converts between many unit types for length, frequency, resistance and angles. Default units can be saved by using the
File->Options menu. Calculated results include conductor and dielectric losses in decibels (dB).
OPTIONS
Transcalc has few command line options at this point.
-v, --version
Causes transcalc to print its version number (a string on the form MAJOR.MINOR, like 0.10) to the standard output, and then
exit.
AUTHOR
transcalc was written by Gopal Narayanan (gopal@astro.umass.edu) and Claudio Girardi (claudio.girardi@ieee.org). transcalc is available at
http://transcalc.sourceforge.net/ (link to URL http://transcalc.sourceforge.net/) .
transcalc(1)