Technical High-Lights - AOR SDU5500 Manual

1-6 Technical high-lights

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Menu driven operation
All facilities are accessible via dedicated keys and on-screen menus.
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Full inter-connection with the AR5000
The AR5000 can be operated from the SDU5500 providing selection of centre frequency, receive
mode, etc. Any frequency spotted and monitored by the SDU5500 may be received by the AR5000
straight away.
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Direct reading of receive frequency and input level
By placing the cursor on any spot frequency, you can read its frequency and input dBm level
on-screen. When connected with the AR5000, the SDU5500 virtually works as a spectrum analyser
over the frequency range of 10kHz to 2600MHz as the centre frequency is always the receive
frequency in spectrum analyser mode.
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Wide spectrum coverage
The SDU5500 covers a maximum of 10 MHz (± 5MHz) spread against the input frequency.
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Dual frequency resolution
SDU input filters may be toggled between 5kHz or 30kHz resolution.
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Wide input range Input range
Of -10dBm to -90dBm by using 2 selectable gain settings.
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Highly accurate frequency management
Through the DDS controlled Local Oscillator circuit.
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Graphical display
Wide variety of graphical display and statistical analysis.
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Remote control via PC
All keyboard operations of the SDU5500 can be mimicked by PC via RS232. Also acquired data
can be downloaded to PC.
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Compatibility with non-AOR receivers
Any companion radio receiver which is equipped with a 10.7MHz IF output may be used with the
SDU5500. It is possible to use a companion receiver with an IF not of 10.7 MHz but within the
range of 5.7 to 15.7 MHz by reprogramming the IF frequency employed by the SDU5500, however
In order to provide a useful bandwidth of at least 1 MHz (+/- 500kHz), as a rule of thumb, the limits
of IF should be considered as 6.7 to 14.7 MHz. Sweep direction is selectable depending on the
heterodyne configuration of the radio, however the maximum sweep span may be narrower than
10 MHz due to the IF characteristics and IF frequency of the companion radio. If being used with
and ICOM IC-R7100 or IC-R9000, the optional ICOM CT-17 (RS232/CIV) interface will be required.
Section 1-6
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