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Icom IC-F621 Service Manual

Icom IC-F621
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S
SECTION 1 SPECIFICATIONS
1 - 1
USA/GEN EUR
GENERAL
Measurement method EIA-152/204D or TIA-603 ETS 300 086
Frequency coverage
[L-band]: 400.000–430.000 MHz
[M-band]: 440.000–490.000 MHz
[H-band]: 480.000–512.000 MHz [USA], 480.000–520.000 MHz [EUR]/[GEN]
Type of emission
[N/W]: 8K50F3E/16K0F3E (12.5 kHz; Narrow/25 kHz; Wide)
[N/M]: 8K50F3E/14K0F3E (12.5 kHz; Narrow/20 kHz; Middle)
Number of conventional channels
Max. 256 ch (16 channels
×
16 banks)
Max. 32 ch (MPT Trnking)
Max. 256 ch (LTR/Passport Trnking)
Power supply voltage (negative ground) 13.6 V DC nominal 13.2 V DC nominal
Current drain (approx.)
Frequency error 2.5 ppm
±
1.5 kHz
Usable temperature range –30ºC to +60ºC (–22ºF to +140ºF) –25ºC to +55ºC
Dimensions (proj. not included) 140(W)
×
40(H)
×
170(D) mm; 5
1
2
(W)
×
1
9
16
(H)
×
6
11
16
(D)
Weight 1.2 kg; 2 lb 10 oz
TRANSMITTER
RF output power High/Low2/Low1: 25 W/10 W/2.5 W [25W], 45 W/25 W/4.5 W [45W]
Modulation system Variable reactance frequency modulation
Maximum permissible deviation
±
2.5 kHz [Narrow],
±
4.0 kHz [Middle],
±
5.0 kHz [Wide]
Spurious emissions 70 dB typical 0.25 µW
1 GHz, 1.0 µW
>
1 GHz
Adjacent channel power 60 dB [Narrow], 70 dB [Middle]/[Wide]
Audio frequency response
+2 dB to −5 dB of 6 dB/octarve
range from 300 Hz to 2550 Hz [Narrow]/3000Hz [Middle]/[Wide]
Audio harmonic distortion 3% typical at 1 kHz, 40% deviation
FM hum and noise (typical)
(without CCITT fi lter)
34 dB min (40 dB typical) [Narrow]
40 dB min (46 dB typical) [Wide]
——
Residual modulation (typical)
(with CCITT fi lter)
——
40 dB min (50 dB typical) [Narrow]
43 dB min (53 dB typical) [Middle]
45 dB min (55 dB typical) [Wide]
Limiting charact of modulator 60–100% of max. deviation
Microphone connector 8-pin modular (600
)
RECEIVER
Receive system Double-conversion superheterodyne system
Intermediate frequencies 1st: 46.345 MHz, 2nd: 450 kHz
Sensitivity (typical) 0.25 µV at 12 dB SINAD –4 dBµV (emf) at 20 dB SINAD
Squelch sensitivity (typical) 0.25 µV –4 dBµV (emf)
Adjacent channel selectivity (typical) 65 dB [Narrow], 75 dB [Middle/Wide]
Spurious response 75 dB
Intermodulation (typical) 70 dB min (75 dB typical) [Wide] 65 dB min (67 dB typical)
Hum and noise
(typical)
(without CCITT fi lter)
34 dB min (40 dB typical) [Narrow]
40 dB min (46 dB typical) [Wide]
——
(with CCITT fi lter) ——
40 dB min (50 dB typical) [Narrow],
43 dB min (53 dB typical) [Middle],
45 dB min (55 dB typical) [Wide]
Audio output power 4 W typical at 10% distortion with a 4
load
External SP connector 2-conductor 3.5 (d) mm (
1
8
")/4
All stated specifi cations are subject to change without notice or obligation.
RECEIVING TRANSMITTING
Stand-by Max. audio 45 W 25 W
300 mA 1200 mA 13.0 A 7.0 A

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Icom IC-F621 Specifications

General IconGeneral
BrandIcom
ModelIC-F621
CategoryTransceiver
LanguageEnglish

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