Icom IC-M504 Specifications And Options, Specifications, D General, D Receiver, D Transmitter

11 SPECIFICATIONS AND OPTIONS

■Specifications

D General			D Receiver
• Frequency coverage	: Tx 156.025–157.425 MHz		• Receive system	: Double conversion
	Rx 156.050–163.275 MHz			superheterodyne
• Mode	: FM (16K0G3E), DSC (16K0G2B)		• Sensitivity (12 dB SINAD)	: 0.22 µV (typical)
• Channel spacing	: 25 kHz		• Squelch sensitivity	: Less than 0.32 µV
• Current drain (at 13.8 V)	: TX high	5.5 A max.	• Intermodulation rejection ratio	: 80 dB (typical)
	Max. audio 1.5 A max.		• Spurious response rejection ratio : 80 dB (typical)
• Power supply requirement	: 13.8 V DC ±15%		• Adjacent channel selectivity	: 80 dB (typical)
	(negative ground)		• Audio output power	: 4.5 W (typical) at 10% distortion
• Frequency stability	: ±10 ppm			with a 4 Ω load
	(–20°C to +60°C; –4°F to +140°F)		All stated specifications are subject to change without notice or
• Antenna impedance	: 50 Ω nominal
			obligation.
• 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 19 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

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