Document No. 8128000560
Software Revision – N1B (07 Oct 04)
7-14
RT-9000 B
Because the system is in Manual Tuning mode, the User may change the above-entered frequency with the
‘TUNING’ dial. The rate (or “steps”) that the dial movement changes the operating frequency and other details
are covered later in section 7.3.2.5 Manual Tuning.
NOTE: After the Load Simplex (‘LOAD SPLX’) key is depressed; the Feature
Menu Display shown in Figure 7.3.2.3 will appear. An ‘ERASE’ selection
at 10 will be present. Depressing this key allows the user to erase an
in-progress frequency entry, one digit at a time, beginning with the last
digit entered (most right-hand). When the desired digits are erased,
simply resume frequency entry using the Numeric Keypad. DO NOT
depress the ‘END’ key at 20.
Depressing the ‘END’ key at 20 will abort frequency selection and cause
the channel to revert to the frequency currently stored.
NOTE: RT-9000 B Transceiver Operating Frequency entries between 100 kHz
and 1.59999 MHz will be accepted and its Receiver will function
normally. However, when its Transmitter is keyed, the frequency display
will flash at 4 . An ‘ILLEGAL XMT FREQ’ message will briefly appear in
the Operational Display.
NOTE: Frequency entries below 100 kHz will not be accepted and the frequency
display will flash at 4 .
Figure 7.3.2.3 Erase Feature Menu
7.3.2.3 TRANSMIT TUNING
After an operating frequency has been entered as described in section 7.3.2.2, the Transmitter portion of the
RT-9000 B will automatically be tuned to the entered frequency. The RT-9000 B will operate in “Simplex”
mode. If the RT-9000 B Transceiver output is feeding a Broadband Antenna directly, the Transmitter will
automatically be tuned. Similarly, if the RT-9000 B Transceiver is driving a broadband Linear Power Amplifier
(such as the LPA-9600) that is also feeding a Broadband Antenna directly, the entire Transmitter equipment
chain will automatically be tuned.
THE TRANSCEIVER IS NOW FULLY OPERATIONAL
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