Garmin 011-01257-20 Panduan Instalasi - Halaman 12

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Garmin 011-01257-20 Panduan Instalasi
1.3.2 Electrical Characteristics
Characteristic
Regulatory Compliance
Unit Software
CLD (Custom Logic
Devices) Compliance
Temperature Range
Power Requirements
Altitude
Audio Panel
Intercom
Headphone Outputs
Speaker Outputs
Marker Beacon Receiver
Page 1-4
Revision C
RTCA/DO-160D Environmental Conditions and EUROCAE/ED-14D
RTCA/DO-178B Level C
RTCA/DO-254 Level C
-45°C to +70°C
Supply Voltage: 28 VDC
See the Environmental Qualification Form for details on surge ratings and
minimum/maximum operating voltages.
Operating Current: 1.75 amps max at 27.5 V
55,000 Feet
Transceiver inputs: 3
Receiver inputs: 5
Unswitched inputs: 4
Input impedance: 500 Ω
Input isolation: 60 dB minimum
Special functions: Failsafe operation
MASQ
Positions: 5 (pilot and 4 passengers per GMA 1347D)
Volume controls: 2 (pilot, passengers)
VOX level controls: 2 (pilot, passengers)
VOX circuits: 5 (one per mic input)
Music inputs (stereo): 2
Music input impedance: 5 kΩ
Music input level: Less than 500 mVac RMS for full output (typical).
1 Vac RMS MAX (3 Vp-p)
Microphone signal processing: 9 pole characteristic and special cabin
noise band de-emphasis
Intercom isolation modes (-00): 2 (Pilot Isolate, Crew Isolate)
Intercom isolation modes (-20): 4 (Pilot Isolate, Crew Isolate,
Special functions: Recorder with playback (selectable recording of
selected COMs) up to 2.5 minutes of recording time.
Automatic squelch: 5 (one per mic input) pilot selectable between auto
and manual.
Output amplifiers: 2, stereo (pilot, passengers)
Fidelity: Power into 150 Ω
50 mW
100 mW
Frequency response: Music: 50 Hz to 20 kHz nominal
Aircraft radio: 200 Hz to 6 kHz nominal
ICS mic: (Special cabin noise band de-emphasis)
Outputs selectable: 1, pilot selectable
Output power: 10 watts into 4 Ω or 8 Ω, @ any normal supply voltage.
Frequency response: 350 Hz to 6 kHz nominal
Frequency: Crystal controlled at 75 MHz
Sensitivity: LO 1000 μV; HI 200 μV
Selectivity: 6 dB @ ±10 kHz min, 40 dB @ ±200 kHz max.
Input impedance: 50 Ω
External lamp drive: 125 mA max each output
Other outputs: Middle MKR sense
Special functions: SmartMute
Specification
TM
processing
Copilot Isolate, All ICS Mode)
Distortion
<0.5%
<5%
TM
marker audio muting
GMA 1347D Installation Manual
190-00303-21