Garmin GTR 200 GTR 200 Installation Manual - Page 15

Display, COM Specifications, Table 1-4, Display Specifications, COM Transmitter Specifications - 8 33

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1.3.3 Display The display on the GTR is a sunlight readable LCD display. Table 1-4 Display Specifications Characteristics Display Size Active Area Resolution Viewing Angle Specifications Width: 3.46" (88.0mm) Height: 0.843" (21.4mm) Width: 2.95" (74.98mm) Height: 0.486" (12.36mm) 200 x 33 pixels Left: 45 Right: 45° Up: 10 Down: 30 1.3.4 COM Specifications The GTR 200 transmitter meets the requirements of RTCA DO-186B section 2.3 for a class 4 transmitter. Table 1-5 COM Transmitter Specifications Characteristics Microphone Input Modulation Capability Modulation Frequency Range Frequency Tolerance Output Power Duty Cycle Carrier Noise Level Stuck Mic Time-Out Demodulated Audio Distortion Specifications Two inputs, standard carbon or dynamic mic with integrated preamp. The GTR 200 provides a 150 Ω AC input impedance and supplies the microphone with an 11 V bias through 470 Ω +/- 5%. 85% with 150 to 1500 mVRMS microphone input at 1000 Hz. Range can be extended from 20 mVrms to 2500 mVrms with mic gain adjustment. AM Double sided Emission Designator: 6K00A3E (118 - 136.975 MHz) 118.000 to 136.975 MHz, 25 kHz channel spacing +/-5 ppm from -20°C to +55°C 10 Watts carrier minimum 20% At least 35 dB (SNR). 35 seconds time-out, reverts to receive Less than 25% distortion when the transmitter is at 85% modulation at 350 to 2500 Hz 190-01553-00 Rev. A GTR 200 Installation Manual Page 1-3

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190-01553-00
GTR 200 Installation Manual
Rev. A
Page 1-3
1.3.3
Display
The display on the GTR is a sunlight readable LCD display.
1.3.4
COM Specifications
The GTR 200 transmitter meets the requirements of RTCA DO-186B section 2.3 for a class 4 transmitter.
Table 1-4
Display Specifications
Characteristics
Specifications
Display Size
Width: 3.46” (88.0mm)
Height: 0.843” (21.4mm)
Active Area
Width: 2.95” (74.98mm)
Height: 0.486” (12.36mm)
Resolution
200 x 33 pixels
Viewing Angle
Left: 45
Right: 45°
Up: 10
Down: 30
Table 1-5
COM Transmitter Specifications
Characteristics
Specifications
Microphone Input
Two inputs, standard carbon or dynamic mic with integrated
preamp.
The GTR 200 provides a 150
Ω
AC input impedance and
supplies the microphone with an 11 V bias through 470
Ω
+/- 5%.
Modulation Capability
85% with 150 to 1500 mVRMS microphone input at 1000 Hz.
Range can be extended from 20 mVrms to 2500 mVrms with mic
gain adjustment.
Modulation
AM Double sided Emission Designator:
6K00A3E (118 - 136.975 MHz)
Frequency Range
118.000 to 136.975 MHz, 25 kHz channel spacing
Frequency Tolerance
+/-5 ppm from -20°C to +55°C
Output Power
10 Watts carrier minimum
Duty Cycle
20%
Carrier Noise Level
At least 35 dB (SNR).
Stuck Mic Time-Out
35 seconds time-out, reverts to receive
Demodulated Audio Distortion
Less than 25% distortion when the transmitter is at 85% modulation
at 350 to 2500 Hz