KMA 24
- Compact, fully solid-state unit containing pushbutton audio selector panel, speaker and headphone isoaltion amplifiers, and a marker beacon receiver
- Styled to match with the other King Silver Crown units but can be integrated into any 500 ohm output audio system
- Can handle as many three transceivers and six receivers
- Models with different features and combinations of marker light presentation, AUTO, 2 COMMs, 2 NAVs, DME, ADF, HF, TEL selections (see table below)
- Has two unswitched inputs for use as altimeter warning and telephone ringer
- Has outputs for ramp hailer and passenger address or intercom
- Seperate isolation amplifiers are provided for headphones and speaker to provide isolation even when the same source is selected
- Three isolated 16 ohm resistors provided for transceiver speaker output loads
- Automatic dimmimg for marker beacon lights
- 14V or 28V operation
- TSO'd
DIMENSIONS |
6.25"W x 1.3"H x 6.81"L |
WEIGHT |
1.7 lbs |
FREQUENCY (MARKER) |
Crystal-controlled at 75MHz |
TSO COMPLIANCE (MARKER) |
TSO C35d, Class A, Env. Cat. /A1D1/A/PKS/XXXXXXZBAAA |
TSO COMPLIANCE (AUDIO AMP) |
TSO C50b, Env. Cat. /A1D1/A/PKS/XXXXXXZBAAA |
TEMPERATURE RANGE |
-20 to 55°C |
DUTY CYCLE: |
Continuous |
SENSITIVITY (MARKER) |
LO 1000uV hard, HI 200uV hard |
SELECTIVITY (MARKER) |
6dB at 10kHz min, 40dB at 200kHz max |
INPUT IMPEDANCE (MARKER) |
50 ohms |
OUTPUT (MARKER) |
Capable of 4 mW into isolation amplifier input of 500 ohms |
EXT LAMP OUTPUT (MARKER) |
125mA max each bulb |
INPUT IMPEDANCE (ISO AMP) |
500 ohms |
INPUT ISOLATION (ISO AMP) |
40dB between inputs |
INPUT MUTING (ISO AMP) |
At least 55dB when mic is keyed |
HEADPHONE OUTPUT |
50 mW into 500 ohm load |
DISTORTION |
Less than 5% at rated output |
FREQUENCY RESPONSE |
Within 6dB from 350Hz to 6kHz |
APPLICABLE DOCUMENTS |
RTCA DO-143, DO-78A, DO-160 |
DESIGN |
All solid state |
PART NUMBER | DESCRIPTION |
066-1055-00 |
Selections for: HF/COM1/COM2/NAV1/NAV2/DME/MKR/ADF1/ADF2 |
066-1055-01 |
Selections for: TEL/COM1/COM2/NAV1/NAV2/DME/MKR/ADF1/ADF2 |
066-1055-02 |
Selections for: HF/COM1/COM2/NAV1/NAV2/DME/MKR/ADF/AUTO |
066-1055-03 |
Selections for: TEL/COM1/COM2/NAV1/NAV2/DME/MKR/ADF/AUTO |