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Chapter 2 – ORION II FRONT AND REAR
PANEL CONTROLS AND THEIR
FUNCTIONS
Chapter 2 of the ORION II manual covers
the various controls and connectors on the
front and rear panels, with an explanation of
the each control and how it is used for
operation of the radio.
ANALOG METER
An analog meter is provided at the upper left
hand side of the front of the transceiver. In
receive, the meter shows S-units of signal
strength for the main receiver.
In transmit, the meter shows approximate
output power (+/- 5%). The power meter is
a sampling-type meter and will stay more or
less constant when sampling power output,
particularly when the transceiver is used in
CW mode.
A separate bar graph S-meter for the
subreceiver is present on the radio screen.
(1) POWER
This button turns the transceiver on and off.
566 manual
Part #74410
Printed in USA
(2 – 7) ANTENNA ASSIGNMENTS
The two columns of antenna selection keys
(numbered 2 through 7 in the figure above)
allow the assignment of up to three
connected antennas to each of the two
receivers.
The most common arrangement would be to
have a single antenna connected to ANT 1
used by either the main receiver only, or by
the main receiver and the subreceiver both.
Buttons 2, 4 and 6, as shown above, allow
ANT 1, ANT 2 or RX ANT to be connected
to the main receiver.
To connect an antenna attached to the
transceiver via the ANT 1 rear panel jack to
the main receiver, press button 2 shown
above. The amber LED embedded in the
button will light, indicating the main receiver
is now connected to ANT 1.
Pressing button 4 as shown above will
connect the main receiver to ANT 2.
When either of the ANT 1 or ANT 2 buttons
in the MAIN RX/TX column is lit, a receive
only antenna can be substituted for the
receive side of ANT 1 or ANT 2 by pushing
button 6 as shown in Figure 2-1.
Example: With button 2 or button 4 lit, press
button 6. The operator will note that there
are now two lighted buttons in this column,
either of 2 or 4, plus 6. The radio will
automatically use either ANT 1 or ANT 2 for
transmit and RX ANT for receive in this
configuration.
Buttons 3, 5, and 7 control the assignment
of the subreceiver to each of the antennas
connected to the radio. The subreceiver can
either share the same antenna in use for the
main receiver, or it can be split off to used
with a separate antenna.
An antenna attached to ANT 1, ANT 2, or
RX ANT can be used simultaneously with
both receivers or they can be split off to
separate receivers. One receiver cannot be
used with two antennas at the same time.
Version 4 – October 2006
7
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