Q-MAC Electronics Pty Ltd HF90 Manuale Utente
HF-90 Operation & Installation Guide
The HF-90 must be properly connected to a suitably
charged 12 - 24 Volt battery. If the set does not
receive adequate voltage it will not operate properly -
there may be speech distortion on transmit and the
LED display will begin to dim.
charged 12 - 24 Volt battery. If the set does not
receive adequate voltage it will not operate properly -
there may be speech distortion on transmit and the
LED display will begin to dim.
The power cable supplied by Q-MAC is designed to
minimise voltage drop between the vehicle battery and
the HF-90. Installing a light core cable will result in
severe transmitter distortion and could damage the
radio.
minimise voltage drop between the vehicle battery and
the HF-90. Installing a light core cable will result in
severe transmitter distortion and could damage the
radio.
In a vehicle installation, Q-MAC recommends that you
fit a cartridge fuse (20 Amp) in the active wire, close
to the battery. This will protect the power cable from
the risk of damage through short circuit.
fit a cartridge fuse (20 Amp) in the active wire, close
to the battery. This will protect the power cable from
the risk of damage through short circuit.
Power source
Grounding
Antenna
Where a bull bar is fitted, a vehicle whip antenna should be
mounted on the front of a vehicle (on a special bracket
welded to the bull bar, on the passenger side of the vehicle).
mounted on the front of a vehicle (on a special bracket
welded to the bull bar, on the passenger side of the vehicle).
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Section 8.2
In a vehicle system adequate grounding is provided by
the metal body of the vehicle. The area of metal is
sufficient to allow good ground coupling.
the metal body of the vehicle. The area of metal is
sufficient to allow good ground coupling.
Ensure that the ground on your antenna system (tapped
whip antenna or automatic tuner) makes a good
connection to the chassis of the vehicle. Failure to do
this may substantially reduce the radiation efficiency
of the antenna.
whip antenna or automatic tuner) makes a good
connection to the chassis of the vehicle. Failure to do
this may substantially reduce the radiation efficiency
of the antenna.