Garmin GPS 500 Installation Manual page 4

1.3.3 GPS Specifications
Regulatory Compliance
Regulatory Compliance
(TAWS units only)
Acquisition Time
Max Velocity
Dynamics
Antenna power supply
1.3.4 COM Transceiver Specifications (GNS 530 Only) **
Regulatory Compliance
Regulatory Compliance
(TAWS units only)
Audio Output
Audio Response
Audio Distortion
AGC Characteristics
Sensitivity
Squelch
Selectivity
Spurious Response
Transmitter Power
Transmitter Duty Cycle
Modulation Capability
Carrier Noise Level
Frequency Stability
Demodulated Audio
Distortion
Sidetone
Demodulated Audio
Response
* C37d Class 4 & 6 may not provide suitable COM transmit range for some high-altitude aircraft.
** Specifications shown apply at nominal input voltages of 13.75 Vdc or 27.5 Vdc, as applicable, and with a nominal
50 ohm resistive load at the antenna connector.
500 SERIES INSTALLATION MANUAL
190-00181-02
TSO C129a Class A(1), RTCA DO-208, JTSO C129a
ETSO C129a
a) Search-the-Sky (without almanac, without initial position or
time): 5 minutes
b) AutoLocate ™ (with almanac, without initial position or time): 5
minutes
c) Cold Start (position known to 300 nm, time known to 10
minutes, with valid almanac): 45 seconds
d) Warm Start (position known to 10 nm, time known to 10
minutes, with valid almanac and ephemeris): 15 seconds
1000 kts.
6 g
20 mA typical, 40 mA max at 4.6 VDC
TSO-C37d Class 4 & 6* (3 & 5 for "A" models),TSO-C38d Class C &
E, JTSO-2C37e, JTSO-2C38e, RTCA DO-186a
ICAO Annex 10 Volume III (Part II – Voice Communications
Systems) Par. 2.3.3
ETSO-2C37e, ETSO-2C38e
100 mW minimum into a 500 Ω load.
Less than 6 dB of Variation between 350 and 2500 Hz.
The distortion in the receiver audio output shall not exceed 15% at all
levels up to 100 mW.
The audio output shall not vary by more than 6 dB when the level of
the RF input signal, modulated 30% at 1000 Hz, is varied from 5 μV
to 450,000 μV.
(S+N)/N on all channels shall be greater than 6 dB when the RF level
is 2 μV (hard) modulated 30% at 1000 Hz at rated audio.
2 μv ±6 dB for 25 kHz channels.
3 μv ±6 dB for 8.33 kHz channels.
6 dB BW is greater than ±8 kHz for 25 kHz channeling.
60 dB BW is less than ±25 kHz for 25 kHz channeling.
6 dB BW is greater than ±2.778 kHz for 8.33 kHz channeling.
60 dB BW is less than ±7.37 kHz for 8.33 kHz channeling.
Greater than 85 dB.
At Least 10 Watts*, 16 watts for "A" models.
Recommended 10% maximum.
The modulation shall not be less than 70% and not greater than 98%
with a standard modulator signal applied to the transmitter.
Shall be at least 45 dB (S+N)/N.
0.0005%
Less than 10% distortion when the transmitter is modulated at least
70%.
into a 500 Ω load when the transmitter is modulated at least
1.4 V
RMS
70%.
Shall be less than 6 dB when the audio input frequency is varied from
350 to 2500 Hz.
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