17
Receive mode
When the AR5000 receive mode is set from the SDU5500, the following results:
SDU5500 setting
AR5000 display
IF bandwidth
WFM
FM
220 kHz
NFM
FM
15 kHz
AM
AM
6 kHz
LSB
LSB
3 kHz
USB
USB
3 kHz
CW
CW
3 kHz
AUTO
AUTO
Depends upon bandplan
&
Note: The AR5000 does not have a specific legend for WFM, IF bandwidth beyond 30 kHz
becomes WFM.
IF output
The AR5000 IF output setting is automatically configured when the SDU5500 & AR5000 communicate
for the first time, thus overwriting any manual setting.
Step adjust
The step adjust facility does not operate with the AR5000 when step-up or step-down is activated from
the SDU5500.
Attenuator
The attenuator selects 0dB or -10dB, -20dB cannot be selected. The relationship between attenuator
and CENTRE FREQUENCY of the SDU5500 is as follows:
Centre frequency
Attenuator On
Attenuator Off
Below 1000 MHz (1GHz)
10dB
0dB
1000 MHz and above
0db (ignored)
0dB
Passive band scope
Should you prefer to operate the AR5000 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.
4-2 Configuration of the AR3000A companion radio
Operation is possible with the AR3000A receiver. However a small modification is required in order to
provide a suitable 10.7 MHz IF output from the AR3000A. The modification requires special skills and
proper tools, some suppliers offer the AR3000A with this modification already carried out. Please
contact your supplier for technical assistance, failing this contact your closest AOR distributor:
Japan: AOR Ltd, 2-6-4 Misuji, Taito-Ku, Tokyo 111-0055, Japan
Tel: +81 3 3865 1695 Fax: +81 3 3865 1697
e-mail: [email protected] www.aorja.com
Europe: AOR (UK) Ltd, 4E East Mill, Bridgefoot, Belper, Derbys DE56 2UA, England
Tel: 01773 880788 Int’l: +44 1773 880788 Fax: 01773 880780 Int’l: +44 1773 880780
e-mail: [email protected] www.demon.co.uk/aor
America: AOR USA INC., 20655 S. Western Ave, Suite # 112, Torrance, CA 90501, USA
Tel: 310 787 8615 Fax: 310 787 8619
e-mail: [email protected] www.aorusa.com
Section 4-1, 4-2
