![background image](http://html.mh-extra.com/html/icom/ic-m504/ic-m504_instruction-manual_612818074.webp)
68
SPECIFICATIONS AND OPTIONS
11
■
Specifications
D
General
• Frequency coverage
: Tx 156.025–157.425 MHz
Rx 156.050–163.275 MHz
• Mode
: FM (16K0G3E), DSC (16K0G2B)
• Channel spacing
: 25 kHz
• Current drain (at 13.8 V)
: TX high
5.5 A max.
Max. audio 1.5 A max.
• Power supply requirement
: 13.8 V DC ±15%
(negative ground)
• Frequency stability
: ±10 ppm
(–20°C to +60°C; –4°F to +140°F)
• Antenna impedance
: 50
Ω
nominal
• Dimensions
: 165(W)
×
110(H)
×
123.2(D) mm
(Projections not included)
6
1
⁄
2
(W)
×
4
11
⁄
32
(H)
×
4
27
⁄
32
(D) in
• Weight
: Approx. 1450 g; 3 lb 3 oz
D
Transmitter
• Output power
: 25 W/1 W
• Modulation system
: Variable reactance frequency
modulation
• Max. frequency deviation
: ±5.0 kHz
• Spurious emissions
: Less than 70 dBc @ 25 W
Less than 56 dBc @ 1 W
All stated specifications are subject to change without notice
or obligation.
D
Receiver
• Receive system
: Double conversion
superheterodyne
• Sensitivity (12 dB SINAD)
: 0.22 µV (typical)
• Squelch sensitivity
: Less than 0.32 µV
• Intermodulation rejection ratio
: 80 dB (typical)
• Spurious response rejection ratio : 80 dB (typical)
• Adjacent channel selectivity
: 80 dB (typical)
• Audio output power
: 4.5 W (typical) at 10% distortion
with a 4
Ω
load
D
Dimensions
Unit: mm (inch)
110 (4
11
Ú
32
)
108.4 (4
9
Ú
32
)
165 (6
1
Ú
2
)
145 (5
23
Ú
32
)
31.4
(1
1
Ú
4
)
91.4 (3
19
Ú
32
)
77 (3
1
Ú
32
)
123.2 (4
27
Ú
32
)
Summary of Contents for IC-M504
Page 1: ...INSTRUCTION MANUAL iM504 VHF MARINE TRANSCEIVER ...
Page 78: ......