Harris Platinum Series, Technical Manual

Page: 51 / 158

3.6.3
Power RAISE/LOWER
The power RAISE and LOWER buttons on the main control
panel duplicate the exciter RAISE and LOWER switches. Upon
depressing one of these switches on the main controller, the
appropriate command is relayed to the exciter.
In transmitters with optional dual exciters, the RAISE/LOWER
commands are routed only to the exciter currently enabled; the
standby exciter power is not changed while making adjustments
to the on-air exciter.
In dual exciter operation, after one exciters has been adjusted for
correct visual and aural power, switch to the standby exciter and
adjust visual and aural power again. The second exciter will then
immediately begin running at the correct drive level when excit-
ers are switched at a later time.
The exciter power controls are active even if AC power is re-
moved. Thus, avoid RAISE commands if the transmitter is not
actually on. If any doubt as to the exciter level setting exists,
depress and hold the LOWER command for about 15 seconds to
assure a safe low drive condition upon turn-on.
The RAISE/LOWER controls are dual-speed controls. The rate
of power level change will be slow for the first few seconds after
a button is pressed and held. The power level will change at a
faster rate if the button is held down longer. To return to the slower
rate, release the button momentarily; the control will revert to the
slow speed when the button is pressed again.
Section III - Operation, Controls, and Indicators
Rev. B: 1/11/1999 888-2365-001 3-19
WARNING: Disconnect primary power prior to servicing.