FSG 90 System
6 Operating Instruction
December 2014
FAV_D10024
57
6.13 Operating times of an
FSG 90
(6 Watt version) supplied from a
12 V battery only
The following duty cycle of Transmit (TX), Receive (RX) and Standby (STBY) results in
available operating time (hours). Both the worst and the most favourable operation
conditions are considered, e.g. maximum receiver volume combined with maximum
speaker load (2 speakers, 4 Ohms each).
Higher current consumption will degrade the nominally available battery capability, as
well as lower temperatures. The following tables show significant time differences
depending on current consumption during Receive, and at temperatures.
Prerequisite: Maximum RX audio volume, AF External ON
Max. current drain
.11 A
2.5 A 1.0 A .11 A 2.5 A 1.0 A .11 A 2.5 A 1.0 A .11 A
Lead Accumulator
12 Volts
7.2 Ah
STBY,
w/out RX
5%
TX
5%
RX
90%
STBY
10%
TX
20%
RX
70%
STBY
20%
TX
40%
RX
40%
STBY
Temperature
- 20°C/-4°F
38 hrs.
12.30 hrs.
6.00 hrs.
3.10 hrs.
Temperature
+20°C/68°F
62 hrs.
20.10 hrs.
10.00 hrs.
5.20 hrs.
Temperature
+50°C/122°F
66 hrs.
22.10 hrs.
11.10 hrs.
6.00 hrs.
Prerequisite: Minimum RX audio volume, AF External OFF (power saving)
Max. current drain
.08 A
2.5 A .25 A .08 A 2.5 A .25 A .08 A 2.5 A .25 A .08 A
Lead Accumulator
12 Volts
7.2 Ah
STBY,
w/out RX
5%
TX
5%
RX
90%
STBY
10%
TX
20%
RX
70%
STBY
20%
TX
40%
RX
40%
STBY
Temperature
-20°C/-4°F
57 hrs.
15.50 hrs.
8.50 hrs.
4.40 hrs.
Temperature
+20°C/68°F
85 hrs.
26.10 hrs.
14.30 hrs.
7.50 hrs.
Temperature
+50°C/122°F
90 hrs.
28.40 hrs.
16.20 hrs.
8.40 hrs.
6.14 Emergency Operation
Even under low / emergency supply conditions, the
FSG 90(X)
can be operated reliably
from as low as 10 Volts supply. This however will reduce both the RF output level and
audio output power.
Batteries must be recharged after discharge. However, the
FSG 90(X)
automatic switch-
OFF feature at too low supply avoids battery damage, even if the radio is stored in
switched ON condition! This is true for all types of 12 V batteries.
Содержание F10185
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