While the transmitter
switch @ to position [REF] and read the meter on
the upper scale @. This is the Standing Wave
Ratio. (Picture 2)
If the SWR is above 2 . 1 the Antenna may need
tuning or there may be a problem in the antenna
system (connectors),
Several antennas provide a means for tuning by ei-
ther a slide adjustment or a control at the base. For
sliding antennas, sliding l/4" each time and repeat-
ing the SWR measurement steps after each adjust-
ment. First moving the antenna inwards and watch-
ing for an improvement in the SWR, than outwards if
no improvement is noticed. Select a center channel
at the transmitter for the measurements.
on, place the sliding
IS
Power Meter Function
4.
The power meter function is provided to monitor
the condition of the transmitter by measuring the
relative power being generated in the transmitter.
This meter will measure up to IO or 100 Watt RF
power, dependent of the position of the sliding
switch @
5.
Power Measurement
Do not turn on the transmitter, while the an-
tenna and test meter are disconnected.
Connect the meter with the transmitter and the
antenna in the same way as for the Sbh measu-
rement.
For measurrng of standard CB transmitter with 4
Watt RF power, p/ace the sliding switch 0
(1 OW/lOOW] to the 1 OW position.
(Picture 1)