User Manual

24
CAUTION & WARNING
THE ANTENNA CONNECTOR IS A TYPE “N” FEMALE CONNECTOR AND REQUIRES A MATING
TYPE “N” MALE CONNECTOR.
PLUGGING IN A “UHF TYPE (PL-259 OR SO-239)” INTO THE ANTENNA CONNECTOR WILL
DAMAGE AND SHORT OUT THE ANTENNA CONNECTOR. THIS COULD BURN UP THE PA
MODULE AND OTHER INTERNAL COMPONENTS.
CAUTION
DO NOT TURN ON AC LINE OR EXTERNAL DC POWER UNTIL ANTENNA HAS BEEN
PROPERLY CONNECTED TO ANTENNA CONNECTOR!
Power-Up SRPT-30/40A
If using AC line, turn on SRPT-30/40A by turning on front panel AC LINE switch.
If using 12-15 Volt or 15-30 Volt external DC supply, turn on SRPT-30/40A by turning on external DC supply.
Refer to the External DC Supply Operation procedure above for proper installation and operation.
The SRPT-30/40A will begin a power-up routine. The front panel meter will illuminate immediately. After about
three seconds the AFC LOCK LED will begin flashing green indicating that the synthesizer is searching for the last
frequency it was last locked on to.
If the TRANSMIT/STANDBY switch is in the TRANSMIT position, the TRANSMIT LED will flash red in unison
with the green flashing AFC LOCK LED. Once the synthesizer has found and locked onto the frequency, the AFC
LOCK LED will immediately stay on solid green and the TRANSMIT LED will continue to flash red for three
additional seconds. After the three seconds, the SYNTHESIZER will be ready, will enable the power amplifier to
transmit RF power, and the TRANSMIT LED will stay on solid red.
If the TRANSMIT/STANDBY switch is in the STANDBY position, the TRANSMIT LED and hence, the
transmitter RF power, will be off and will stay off even after the SYNTHESIZER has locked and the AFC LOCK LED
has illuminated solid green. When the TRANSMIT/STANDBY switch is placed in the TRANSMIT position (and three
seconds have elapsed since the SYNTHESIZER became locked) the PA will immediately begin transmitting and the
TRANSMIT LED will illuminate solid red.
Adjusting Output Power
Turn the METER CONTROL knob to the FORWARD POWER position and observe the forward power reading on
the top scale of the METER. Using a small flat-head screwdriver, adjust the POWER ADJUST pot (located about ¾ of
an inch behind the POWER ADJUST bezel ring) to adjust the forward power to a desired output power as indicated on
the METER.