Icom IC-A4 Marine Radio User Manual


 
17
10
SPECIFICATIONS
DGeneral
Frequency coverage : TX 118 to 136.975 MHz
RX 108 to 136.975 MHz
Mode : AM (6K00A3E)
Number of memory channels : 19
Acceptable power supply : 9.6 V DC nominal
(negative ground) (authorized battery packs)
Usable temp. range : 10˚C to +50˚C
Frequency stability : ±10 ppm (0˚C to +50˚C)
Current drain :
Tx 1.2 A (CW) max.
0.7 A (CW) typical
Rx 55 mA typical (at stand by)
250 mA max. (at AF max.)
Antenna impedance : 50 (nominal)
Dimensions : 58(W)140.5(H)32.3(D) mm
(projections not incl.)
Weight (with BP-195) : 425 g
DTransmitter
Output power : 3.7 W (PEP) typical
1.0 W (CW) typical
Modulation : Low level modulation
Modulation limiting : 80 to 100 %
Audio harmonic distortion : Less than 10 %
(at 60 % modulation)
Hum and noise ratio : More than 35 dB
Spurious emissions : More than 60 dB
DReceiver
Receive system : Double conversion
superheterodyne
Intermediate frequencies : 1st 28.95 MHz
2nd 450 kHz
Sensitivity (with 50 load) : 1 µV (at AM 6dB S/N)
Squelch sensitivity : 1 µV
(with 50 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 load)
Noise and hum : More than 25 dB
External SP connector : 3-conductor 3.5 (d) mm/8
All stated specifications are subject to change without
notice or obligation.
IC-A4#01 IM 01.12.5 5:14 PM Page 17 (1,1)