Configuration Of An Icom Companion Radio - AOR SDU5500 Manual

Use the spin wheel dial to highlight "AR3000A" then press
briefly be displayed then the CF readout will display the current receive frequency of the AR3000A and
the RX readout will confirm AR3000A. Should any fault occur in connection with the AR3000A at this
stage, the SDU5500 CPU will identify the receiver as "Other" being connected. In this case check the
AR3000A baud rate setting (which should be 9600bps) and connection lead.
Warm Start
Once the SDU5500 has been configured for the AR3000A receiver following a cold start (or any other
receiver in use), it will not be necessary to enter the receiver details again as long as the SDU5500
remains connected to power (presuming that you wish to continue using the same receiver type)... even
after the SDU5500 has been switched off and back on again.
Cold start / Hot start
The initial display which appears on the screen after switching on depends on whether the SDU5500 has
remained connected to a power supply since last use. When the cold start is performed (if power has
been removed), the SDU5500 will start with menu page 1 while menu page 4 will appear when the
SDU5500 is hot-started. Either way, shuttling from page-to-page is possible.
General operational notes
Note: The AR3000A will now be operated from the front panel of the SDU5500, receive mode,
frequency, attenuator etc may be controlled. All controls of the AR3000A will be locked while in
REMOTE mode.
The minimum specified tuning step size when used with the SDU5500 is 50 Hz , any digits below 50 Hz
will be ignored, the acceptable step sizes being in the range 50 Hz to 999.95 kHz inclusive.
Step adjust
The step adjust facility does not operate with the AR3000A when step-up or step-down is activated from
the SDU5500.
Passive band scope
Should you prefer to operate the AR3000A from it's own front panel, it is possible to configure the
SDU5500 for "Other" companion radio and use the display unit as a band scope only. The Centre
Frequency will then always be displayed as 10.7 MHz but an OFFSET will be displayed making the
measurement of interesting traces possible.

4-3 Configuration of an ICOM companion radio

Operation is possible with a number of ICOM wide band receivers. Depending upon the model, the
ICOM optional CT17 (RS232/CIV) converter may be required.
Models supported
The following set-up is required:
R7100 CT17 required
R8500 Direct RS232
R9000 CT17 required
Baud rate
Frequency data 5 Byte
Transceive
Address default IC-R7100
. The legend "AR3000A Connected" will
9600 bps
ON
34h
IC-R8500 4Ah
IC-R9000 2Ah
Section 4-2, 4-3
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