FSG 90 System
2 General Description
December 2014 FAV_D10024 11
2.9 Equipment required but not supplied
a) VHF aircraft antenna with coax cable RG-58C/U and BNC connector (Male)
b) Headphone (8 ... 600 Ohms, typical) and/or loudspeaker (2 ... 16 Ohms)
c) Non-amplified dynamic microphone, (4 ... 600 Ohm),
or amplified/carbon microphone (amplified dynamic or Electret mike), with or without
PTT key (separate mike inputs amplified/non-amplified)
d) Alternatively to b) and c) headsets with similar specifications
e) Battery Box 12 Vdc, minimum 6 Ah, for aircraft without electrical system
f) Push-to-talk key permanently installed on yoke (if microphone w/out PTT key is
used)
g) 25 pole D-SUB connector type DA-25 S and cover, if no pre-manufactured wiring
harness exists.
2.10 Information on Equipment Reliability
For use of the equipment as a ground-based radio station under normal operating
conditions (0° - 40°C operating temperature), a Mean Time Between Failure (MTBF) of
> 9,600 hours was calculated (according to MIL-HDBK-217F).
Mean Time to Repair (MTTR) will depend on shipment times. A standard turn-around
time for factory repairs will be approx. 2 weeks.
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