User's Manual

14
received signal to its best point.
b.) With an External Antenna, physically move the antenna's placement. If the antenna is
installed on a vehicle, move the entire vehicle to achieve better RSSI.
It is important to remember that ANY increase in the meter reading, no matter how little, will be a
marked improvement in signal strength. The majority of movement in the meter during the course
of a normal operation will be between 0.5 and 3 on the meter scale. That relates to approximately
a 1 microvolt swing in reception. And every 1/10 of a microvolt increase in signal is a significant
improvement. While it is true that the better the signal the more the needle will move toward the
right of the scale, the needle does not have to move very far to the right to reflect a change in a
signal from one that is "in the mud" and unusable to one that is intelligible, and then to one that is
crystal clear.
TO MEASURE THE INTERNAL BATTERY CONDITION....
Press the BAT/RSSI switch until the LED indicator is YELLOW. The meter scale reflects the
following information:
METER READS.. BATTERY VOLTAGE IS.. DESCRIPTION
Bottom RED Less that 9.7 VDC Unit in Shut Down Mode
TOP RED 9.7 to 11.5 VDC Low Battery Condition
YELLOW 11.5 to 13.8 VDC Normal Operating Range
GREEN 13.8 to 14.4 VDC Full Charge
CHARGING and CARING FOR
THE INTERNAL BATTERY
The Citation 20's internal battery is charging whenever the unit is connected to 110 VAC. The unit
will charge with the POWER switch ON or OFF. If the Citation's POWER switch is ON and the
unit is operating, the battery will charge at a slower rate than if the POWER switch is OFF.
The Citation 20 WILL NOT charge during external 12 VDC operation.
Low battery condition is indicated on the Citation 20 via the RSSI/Battery Condition meter. The
meter will read in the RED LED SEGMENTS - or towards the BOTTOM YELLOW SEGMENTS
(See the section on the RSSI/Battery Meter for complete meter operating instructions). Once the
BAR GRAPH LED begins to turn to the bottom Yellow segments, plan to change your power
source to either external 12 VDC or 110 VAC to ensure non-interrupted operation. A fully
charged battery will supply an average operating time of 6 hours. Operating time will vary due to
the length of time the recorder is in operation.
Once the unit enters a low battery condition, it will continue to operate for at least one hour - then
the Citation 20 will shut off completely.
The internal battery must be fully charged immediately once the unit has either entered the low
battery condition, or if the unit has shut down due to the battery being fully depleted.
NOTE: IF THE CITATION 20 REACHES THE "SHUT DOWN" POINT, IMMEDIATELY PLUG
THE UNIT INTO 110 VAC, TURN THE POWER SWITCH OFF, AND RECHARGE THE
BATTERY. IF THE POWER SWITCH STAYS IN THE ON POSITION AND THE CITATION 20 IS