Icom IC-M401EURO, Service Manual

Page: 4 / 36

SECTION 1 SPECIFICATIONS
1 - 1
‘ ‘ GENERAL
• Frequency coverage : 156.025–157.425 MHz (Tx)
156.300–162.025 MHz (Rx)
• Mode : 16K0G3E (FM)
• Power supply requirement : 13.8 V DC (negative ground)
• Usable temperature range : –20˚C to +60˚C; –4˚F to +140˚F
• Frequency stability : ±10 ppm (–20˚C to +60˚C; –4˚F to +140˚F)
• Current drain (at 13.8 V DC) : Transmit at 25 W 6.0 A (approx.)
Receive max. audio 1.2 A (approx.)
• Antenna impedance : 50
Ω
(nominal)
• Input impedance (MIC) : 600
Ω
• Output impedance (Audio) : 4
Ω
• Dimensions (projections not included) : 153(W)
×
67(H)
×
140(D) mm; 6(W)
×
2 5 ⁄
8
(H)
×
5 3 ⁄
5
(D) in
• Weight : 900 g; 2 lb
‘ ‘ TRANSMITTER
• Output power (at 13.8 V DC) : High 25 W
Low 1 W
• Modulation : Variable reactance frequency modulation
• Maximum frequency deviation : ±5.0 kHz
• Frequency stability : Less than 0.25 µW
• Spurious emissions : 70 dBc
• Residual modulation : 40 dB
• Audio harmonic distortion : Less than 10% at 60% deviation
• Audio frequency response : +1 dB to –3 dB of 6 dB octave from 300 Hz to 3000 Hz
‘ ‘ RECEIVER
• Receive system : Double conversion superheterodyne system
• Intermediate frequencies : 1st 21.7 MHz
2nd 450 kHz
• Sensitivity : Less than –2 dBµ emf typical at 20 dB SINAD (With CCITT)
• Squelch sensitivity : Less than 0 dBµ emf typical
• Adjacent channel selectivity : More than 70 dB
• Spurious response : More than 70 dB
• Intermodulation rejection ratio : More than 68 dB
• Hum and noise : More than 40 dB
• Audio frequency responce : +1 dB to –3 dB of –6 dB octave from 300 Hz to 3000 Hz
Specifications are measured in accordance with EN301 025-1, -2, -3
All stated specifications are subject to change without notice or obligation.