The SWR-200 is an easy to use and high sensitive standing
wave ratio and power meter for practical use by radio amateurs.
It is designed for measuring the forward and reflected
power of standing waves caused between a transmitter and
an antenna and also monitoring the impedance matching
of an antenna for a transmission line. The two meters balanced
mechanically and electrically, one for the forward power and
the other for the reflected one, read the standing wave
ratio directly without a switch. The tube type directional
coupler for reducing inductive and capacitive
reactances to a minimum is useful in the VHF range
The push button switch for selecting the impedance
of 75Ω or 52Ω is useful in mobile radio stations
as well as fixed radio ones.
These manuals are available for the above equipment: