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3. INSTALLATION
SETTING UP
a) Unpack the amplifier and check that it is undamaged. The carton should also
contain an operating manual, phono plugs (for relay switching lead) and spare fuse.
Please retain the packing and box should it be necessary to ship it or move it to
another location.
b) Ensure you have a reasonable airflow around the site you have chosen to install
your amplifier. Do not enclose the cabinet or restrict the airflow in any way. Try to
avoid extremes of heat, humidity or dust in order to give many hours of trouble-free
operation.
c) Ensure ALL connectors to be used by yourself are of a sufficient electrical
standard to carry the higher RF output generated by the amplifier. To properly tune
the amplifier a high quality Wattmeter (e.g. Bird thruline) should be used to measure
the output and if possible a similar meter between the driver and the amplifier to
correctly measure the input.
d) NEVER attempt to operate the amplifier without first connecting an antenna or
50ohm dummy load. Check the SWR of the antenna with the amplifier in the OFF or
STBY position and do not operate the amplifier if the SWR is greater than 2 : 1.
e)
Check that the front panel switches are in the STBY and OFF positions.
CONNECTIONS
a)
POWER CABLE. The amplifier is fitted with a 3-wire Mains cable terminated in
a 13A plug (UK only). The supply must be 230VAC single phase, 50/60 Hz.
b)
OUTPUT COAX. Any good quality 50 ohm coax capable of carrying up to
2000W at 28MHz is suitable. This needs an SO239 connector to go on to the
amplifier and whatever connector is required for your Wattmeter.
c)
INPUT COAX. Good quality 50 ohm coax with an SO239 connector to the
amplifier and a connector of your choice for the driver.
d)
RELAY SWITCHING LEAD. Two phono plugs are provided for you to make a
lead to go into the PTT and ALC sockets on the rear of the amplifier and connect
to the linear amplifier connections on your transceiver.
