A.H. Systems active monopole series Betriebshandbuch - Seite 7
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A.H. Systems Model Active Monopole Antennas
OPERATING INSTRUCTIONS
ASSEMBLY INSTRUCTIONS
To prepare the antenna for operation, attach the telescoping rod antenna
element to the top of the high impedance preamplifier. Connect the rod antenna
by pushing straight down on the female connector on top of the amplifier. Do
not apply excessive sideways force, as this can cause the antenna center-pin to
break. Do not operate the Monopole antenna with the Battery charger
connected.
SETUP INSTRUCTIONS
The amplifier and ground plane can be mounted to any tripod with a 1/4-20
attaching stud. Attach the rod antenna to the connector on the top of the
amplifier. Extend the rod antenna to 41" (104cm) above the ground plane.
Connect the output BNC connector on the side of the amplifier to the input of a
50-ohm receiver or spectrum analyzer. Make ground connection to ground
plane if required by the test specification.
The POWER indicator LED will light and stay lit as long as the battery has
sufficient voltage to power the preamplifier. If the LED does not light, do not use
the preamplifier until the battery has been recharged.
GENERAL USE INSTRUCTIONS
The calibration tables provide a listing of the frequency of operation and it's
antenna factor in dB/m. The field strength is the receiver voltage in dBuV plus
the antenna factor (refer to the antenna factor calibration) plus any cable loss.
When making a measurement, mount the antenna on an appropriate mast or
tripod. Ensure that the Monopole is turned on and use the appropriate The
Active Monopole Antenna is easy to set up and provides good reception with a
minimal need for space. It's flat 0dB Antenna Factor makes it a convent choice
when calculating the field intensity. The signal field strength is the receiver
voltage in dBuV plus the antenna factor (refer to the antenna factor calibration)
plus any cable loss.
A.H. Systems inc. – October 2005
REV A
NOTE: The on/off toggle switch is a locking type to prevent
accidental turn-on or turn-off. Pull out on the toggle handle
and push up to turn amplifier power on. Pull out and push
down to turn off.
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