INSTALLATION
Select a location for the DU 1500 that allows the connectors to be free of any possible
Contact during operation.
WARNING:SOME BALANCED OR END-FED ANTENNAS WILL PRODUCE
HIGH RF VOLTAGES AT THE BANANA CONNECTORS.RF
BURNS MAY RESULT IF TOUCHED DURING TRANSMISSION.
INSTALLATION PROCEDURES
1. Connect a coax cable from your transmitter or receiver to the RF INPUT connector on
the rear panel.Keep the cable as short as possible. If you use a linear amplifier,connect
your transmitter to the linear amplifier output to the DU 1500.
2. Connect coax cable(s) from your antenna to COAX 1 or COAX 2 connectors ont he rear
panel.Thes connectors are either direct from the transmitter or trough the tuned circuit
depending ont he setting of the OUTPUT SELECTOR switch ont he front panel.
3If you are using a balanced feed antenna,connect the INSTALLJUMPER in the COAX 1
connector and switch band switch TUNED COAX 1.
4. If using a single wire antenna,connect itt o post COAX 1 without installing jumper.
5. Connect a dummy load to the BYPASS CONNECTOR using a coax cable.This
lets you select the dummy load from the OUTPUT SELECTOR switch.Any antenna
that does not require the use o fan antenna tuner may be connected to the BYPASS
connector,if desired.
BEFORE OPERATION
1. To avoid possible damage to the DU 1500,set INPUT,OUTPUT,BAND SWITCH
and POWER RANGE switches as outlined int he next section before applyng
transmitter power.(Tuning Section)
2. Begin tuning with your transmitter se tat a low power setting ( 50 to 100W)
WARNING: DO NOT OPERATE THE DU 1500 WITH THE COVER OFF!
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