Icom IC-A4 instruction manual Specifications, DGeneral DTransmitter, DReceiver

SPECIFICATIONS 10

DGeneral				DTransmitter
• Frequency coverage	: TX	118 to 136.975 MHz		• Output power	: 3.7 W (PEP)		typical
	RX	108 to 136.975 MHz			1.0 W (CW)		typical
• Mode	: AM (6K00A3E)			• Modulation	: Low level modulation
• Number of memory channels	: 19			• Modulation limiting	: 80 to 100 %
• Acceptable power supply	: 9.6 V DC nominal			• Audio harmonic distortion	: Less than 10 %
(negative ground)	(authorized battery packs)			(at 60 % modulation)
• Usable temp. range	: –10˚C to +50˚C			• Hum and noise ratio	: More than 35 dB
• Frequency stability	: ±10 ppm (0˚C to +50˚C)			• Spurious emissions	: More than 60 dB
• Current drain	:			DReceiver
Tx	1.2 A (CW) max.
	0.7 A (CW) typical			• Receive system	: Double conversion
Rx	55 mA typical		(at stand by)		superheterodyne
	250 mA max.		(at AF max.)	• Intermediate frequencies	: 1st	28.95 MHz
• Antenna impedance	: 50 Ω (nominal)				2nd	450 kHz
• Dimensions	: 58(W)✕140.5(H)✕32.3(D) mm			•Sensitivity (with 50 Ω load)	: 1 µV (at AM 6dB S/N)
(projections not incl.)				• Squelch sensitivity	: 1 µV
• Weight (with BP-195)	: 425 g			(with 50 Ω load)
				• Selectivity	: 8 kHz (at 6 dB)
					25 kHz (at 60 dB)
				• Spurious response	: More than 60 dB
				• Audio output power	: 500 mW (at 10% distortion
				(at 9.6 V DC)	with an 8 Ω load)
				• Noise and hum	: More than 25 dB
				• External SP connector	: 3-conductor 3.5 (d) mm/8 Ω

All stated specifications are subject to change without notice or obligation.

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