Ameri-King AK-451-ELT User Manual
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PHYSICAL CHARACTERISTICS:
SIZE AND WEIGHT:
Main Unit:
(4.27”Wx2.95”Hx5.64”L) 1lbs 14oz
Remote Unit:
(1.58”W x 0.65”H x 2.00”L) 1.0 oz
Transport Blade type, 451 017-3: 600 Knots airspeed, 1.4 lbs
Business Rod type, 451 017-2:
350 Knots airspeed, 0.5 lb
General Aviation whip type,
451 017-1:
300 Knots airspeed, 0.25 lb
Portable Antenna, 451 017-4:
(17”L) 4.0 oz
Mounting Tray & Clamp holder:
(4.51”W x 0.75”H x 5.87”L) 4.0 oz
MOUNTING HOLE SPACING:
Mounting Tray:
4 Trapezoid Corners (L1=2.76”; L2=1.76”; H=2.01”)
Remote Unit:
4 Rectangular Corners (1.825”W x 0.490”H)
Fixed Antenna:
7 / 5 / 1 Holes (0.500” Diameter) for Blade / Rod / Whip
respectively
CASE AND COLOR:
No Sharp Edges, High Impact, Flame Retorted, Fire Resistant, Waterproof, High,
Temperature ABS Plastic, Safety International Orange Color.
GENERAL SPECIFICATIONS (STANDARD CONDITIONS):
TRANSMITTER:
Operating Frequencies:
406.028 MHz ± 0.001 MHz
121.500 MHz ± 0.005 %
243.000 MHz ± 0.005 %
(
Note: AK-451-2D/6D/20D/21D/23D will turn off 243 MHz)
Short term stability ≤ 2 x 10
9
/100ms
Medium slope -1 to +1x10
9
/min
Medium Residual variant ≤ 3 x 10
9
Modulation
Characteristics:
Audio Sweep Frequency: Download
Sweeping:
(1600-300) Hz
Sweep Rate:
3 Hz ± 1 Hz
Modulation Factor:
More than 0.85
Occupied Bandwidth:
Less than 25 Hz
Voice Modulation:
Included
Modulation Duty Cycle:
(33-55) % Square Wave AM Continuous
Peak Effective Radiated50mW @ 121.5 MHz
RF Power (PERP):
50mW @ 125/243.0 MHz
5W +/- 1.58W @ 406.028 MHz
(35.34 to 38.18) dBm @ 406.028 MHz