Atec AH-Systems-SAS-550-1B - Manual (Page 7)

A.H. Systems Model Active Monopole Antennas
CHARGING THE BATTERY
Depending on the model (if applicable), position the input voltage selector
located next to the wall plug on the back of charger to the proper voltage (either
110
– 120 Vac, 60 Hz or 220 – 240 Vac, 50 Hz). Be sure to check the available
voltage and adjust the voltage selector as needed before use. The amplifier
ON-OFF switch must be in the OFF/CHARGE position to charge the battery.
One hour of amplifier operation will be obtained for each hour of charge up to a
maximum of 8 hours operation. Charging for up to 24 hours will not damage
the battery. Using the battery charger to operate the amplifier directly is not
recommended.
REPLACING THE BATTERIES
Remove the four 6-32 flat head screws from the bottom of the ground plane.
Disconnect the battery lead from the PC card. Re-connect the lead from the
new battery pack to the PC card. Snug the four 6-32 flat head screws. Insure
that the orientation of the amplifier box is that the input rod connector is facing
toward the center of the ground plane.
ECF-10 (Equivalent Capacitance Fixture)
The ECF-10 is an equivalent capacitance fixture constructed per IEEE 291 and
ARP 958. This is an indispensable tool used for gain adjustment and calibration
of the active monopole antennas. The ECF-10 is used as a signal substitution
source when calibrating the active monopole antennas. Refer to the alignment
and calibration procedures below.
 A.H. Systems inc. – January 2007
REV B
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