RT-600 Operations Manual
Version 1.0
11
SWR Meter
The RC-600 has no SWR display. If your transceiver does not have a built-in SWR
display, you may install an external SWR meter between the output of the amplifier
and the input of the RC-600.
Bias Tee Information
A Bias Tee is a circuit that injects DC power onto the coax feedline, while isolating
the DC power from both the transmitter and the antenna; two are required, one at each
end of the coax. The LDG RT-600 contains an internal Bias Tee, and the RC-600
contains a Bias Tee designed specifically for use with the RT-600. The following
information is provided for your reference if you ever need to use the RT-600 without
the RC-600.
You can easily “homebrew” a Bias Tee from readily available components.
Alternatively, ready-made Bias Tees are available from commercial suppliers,
including the SGC 54-70 DC Coaxial Line Isolator, the Array Solutions Bias Tee
Master, and many others. The Bias Tee must be rated for at least 1 Amp, and 1.8 to
54 MHz.
For more information on Bias Tee construction and theory, see the Wikipedia article
“Bias Tee” at http://en.wikipedia.org/wiki/Bias_tee, ARRL’s QST article in the
January 2013 issue, Vol. 97, Issue 1, p46, or the Array Solutions Bias Tee Master
product review in the September 2009 issue of QST.
You may install
an external
SWR meter if
desired.
You can make
your own Bias
Tee circuit if
you need to use
the RT-600
without the RC-
600.
