Reference Documents - Garmin GMA 240 Installation Manual

Characteristic
Music Functions
Front Panel Mini-
Jack Functions
1.3.3 Power Requirements
Characteristic
Input Voltage Range
Power Input
1.4

Reference Documents

The following publications are sources of additional information for installing the GMA 240. Before
installing the unit, the technician should read all referenced materials along with this manual.
Part Number
190-00917-00
190-00917-02
Page 1-4
Rev. A
Music inputs (stereo): 2
Music input impedance: 600
Music gain: -20dB @ min volume, +26dB @ max. volume (typ.)
Music input level:<200 mVrms for full power* output @ max music
volume knob position (typ.)
3.5 Vrms max music input level
Music bandwidth: 20 Hz to 20 kHz @ full power output
Music distortion: <0.1% THD+N (typ.) @ full power, full bandwidth
Special Functions: Front panel selection and volume control
Front panel control for muting by radios and ICS
Muting by alerts configurable
*Full power output refers to 300 mW into 50 Ω (three 150 Ω headsets in parallel each
driven to 100 mW)
Input Impedance: 5.1 k
Music Input: Auto detection of music source will use jack as Music 1
Telephone Input: Auto detection of TEL source will use jack for TEL
Telephone ring signal is heard without TEL selected
GMA 240 Pilot's Guide
GMA 240 Maintenance Manual
Specification
Ω
(differential)
Ω
Specification
11 to 33 Vdc
4.3 W normal operation (310mA @ 13.8 V)
7.5 W max. operation (540 mA @ 13.8 V)
Document
GMA 240 Installation Manual
190-00917-01