Instruction Manual

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( 5 ) OPERATION
1) Referring to the illustration per (4) TYPICAL CONNECTION AND SETTING,
connect your transceiver, amp, power supply (or battery), SWR/Power meter,
antenna etc. properly.
Turn on the power switch of the transceiver.
In receiving state, the signal from the antenna will bypass the amplifier, and
receiving signal can be heard from the transceiver.
2) Find a frequency channel that is not occupied by other stations, and key the
transceiver to transmit mode to check the antenna SWR.
It is recommended that antenna is well adjusted for a good SWR value such as
1.5 or lower.
3) After setting the antenna correctly, turn ON the ①POWER switch.
4) If you key (transmit) the transceiver, HL-45B will also be automatically keyed
to transmit. Then the amplified signal is emitted from the antenna. At this time,
LEDs of POWER LEVEL INDICATOR will light according to the transmitting
signal level.
Check the SWR again at this time. SWR may get worse if the power handling
capacity of the antenna is not good enough.
5) When you wish to run the transceiver only and do not need to amplify, simply
turn off the POWER of HL-45B. The signal to and from the radio will bypass
the amplifier, so you do not need to remove the cables.
* When you are using transceivers other than FT-817, connect the amplifier as
shown in B. of (4) TYPICAL CONNECTION AND SETTING, and connect a
remote control cable to **STBY jack (grounded when transmitting) of your
radio accordingly.
(**Also called SEND, REMOTE etc. according to the manufacturer.)
* Maximum input power (RF drive) to HL-45B is 5W.
Do not apply more than five watts of drive power to the amplifier.