Icom IC-F21S service manual Specifications, ‘ General, ‘ Transmitter, ‘ Receiver

SECTION 1 SPECIFICATIONS

‘ GENERAL

• Frequency coverage	: 440.000–470.000 MHz
• Type of emission	: 16K0F3E (at 25 kHz), 8K50F3E (at 12.5 kHz)
• Number of channels	: 2 ch (IC-F21S), 16 ch (IC-F21)
• Power supply requirement	: 7.2 V DC (negative ground)
• Current drain (approx.)	: Transmit	at High (4.0 W)	1.6 A
		at Low2 (2.0 W)	1.2 A
		at Low1 (1.0 W)	0.8 A
	Receive	rated audio	250 mA
		stand-by	70 mA
• Frequency stability	: ±0.00025 %
• Usable temperature range	: –30˚C to +60˚C; –22˚F to +140˚F
• Dimensions (projections not included)	: 54(W) ⋅ 132(H) ⋅ 37(D) mm; 2 1⁄8(W) ⋅ 5 1⁄32(H) ⋅ 1 15⁄32(D) in.
• Weight (with ant., BP-209)	: 310 g; 10.9 oz.

‘TRANSMITTER

•RF output power (at 7.2 V DC) (with supplied battery pack)

•Modulation system

•Maximum frequency deviation

•Spurious emissions

•Adjacent channel power

•Transmitter audio harmonics distortion

•Limitting charact of modulator

•FM Hum and Noise

•Ext. microphone connector

‘RECEIVER

•Receive system

•Intermediate frequencies

•Sensitivity

•Squelch sensitivity

•Adjacent channel selectivity

•Spurious response rejection

•Intermodulation rejection ratio

•Hum and noise (EIA only)

•Audio output power (at 7.2 V DC)

•Ext. speaker connector

:4 W / 2 W / 1 W (High / Low2 / Low1)

:Variable reactance frequency modulation

:±5.0 kHz (at 25 kHz), ±2.5 kHz (at 12.5 kHz)

:73 dBc (typical)

:70 dB typical (at 25 kHz), 60 dB typical (at 12.5 kHz)

:Less than 3% typical at 1 kHz, 40% deviation

:70–100% of max. deviation

:46 dB typical (at 25 kHz), 40 dB typical (at 12.5 kHz)

:3-conductor 2.5 (d) mm (1⁄10”)/2.2 kΩ

:Double conversion superheterodyne system

: 1st	46.35 MHz
2nd	450 kHz

:0.25 µV at 12 dB SINAD (typical)

:0.3 µV at threshold (typical)

:70 dB typical (at 25 kHz), 65 dB typical (at 12.5 kHz)

:70 dB (typical)

:70 dB (typical)

:46 dB typical (at 25 kHz), 40 dB typical (at 12.5 kHz)

:500 mW typical at 5% distortion with an 8 Ω load 600 mW typical at 5% distortion with an 6 Ω load

:2-conductor 3.5(d) mm (1⁄8”)/8 Ω

Specifications are measured in accordance with EIA/TIA-603.

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

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