Icom IC-A25C Service Manual

(Replacement page)
SECTION 1 SPECIFICATIONS
1-1a
March 2019
IC-A25N IC-A25C IC-A25NE IC-A25CE
GENERAL
Frequency coverage (Unit: MHz) TX 118.000~136.99166
RX 108.000~
136.99166
118.000~
136.99166
108.000~
136.99166
118.000~
136.99166
WX 161.650~163.275 –
Channel spacing 25 kHz/8.33 kHz
Type of emission 6K00A3E/5K60A3E,
16K0G3E (WX)
6K80A3E/5K00A3E
Number of memory channels 300 channels
Usable temperature range –10°C~+60°C, +14°F~+140°F –20°C~+55°C
Frequency stability ±0.4 kHz ±1 ppm
Power supply 7.2 V DC standard or 11.0 V DC at the external DC jack
Current drain (at 7.2 V DC)
*
1
Transmit Less than 1.8 A
Receive (Maximum AF output) Less than 500 mA
(Standby) 90 mA typical
Antenna connector BNC (50 Ω)
Dimensions (projections not included) 58.9 (W)×148.4 (H)×31.8 (D) mm, 2.3(W)×5.8 (H)×1.3 (D) inches
Weight (approximate) 200 g, 7.1 oz (Without battery pack, battery case, and antenna)
TRANSMITTER
Modulation system
Low level modulation
Output power (at 7.2 V DC) PEP 6.0 W
Carrier Wave 1.8 W
Modulation limiting 70~100% –
Modulation depth – 85%
Spurious emissions
More than 46 dB
*
2
Less than –36 dBm*
3
Audio harmonic distortion
Less than 10% (at 60% Mod.)
Less than 10%
(at 85% Mod. input level +3 dB)
Ham and noise ratio More than 35 dB –
Microphone impedance 150 Ω
RECEIVER
Receive system Double Conversion Superheterodyne
Intermediate frequencies
1st 46.35 MHz
2nd 450 kHz
Sensitivity
*
4
COM
Less than 0 dBμ (at 6 dB S/N)
Less than 0 dBμ
(at 12 dB SINAD: with CCITT)
VOR Less than 0 dBμ
(at 6 dB S/N)
–
Less than 0 dBμ
(at 6 dB S/N)
–
WX Less than –8 dBμ
(at 12 dB SINAD)
–
Audio output power More than 350 mW with 60% Mod. at 10% distortion into an 8 Ω load
Adjacent Channel rejection – More than 60 dB
Ham and noise More than 35 dB at 30% Mod. More than 40 dB at 90% Mod.
Spurious response rejection ratio
AM More than 60 dB More than 70 dB
FM (WX) More than 30 dB –
Squelch Sensitivity (threshold) COM/VOR Less than 0 dBμ
WX Less than –5 dBµ –
*
1
When GPS, Bluetooth, and backlight are OFF.
*
2
Except ±62.5 kHz from the operating frequency, in the AM mode, and ±20.825 kHz, in the AM narrow mode.
*
3
30 MHz to 1 GHz, except ±1 MHz from the operating frequency.
*
4
The input signal strength level of this receive sensitivity is measured at the load end (PD).
Measurements made in accordance with FCC Part87 (IC-A25N and IC-A25C), or EN300 676 (IC-A25NE and IC-A25CE).
All stated specifications are typical and subject to change without notice or obligation.
The underlined parts have been updated from the previous version of the addendum, or the original page.

Icom IC-A25C Specifications

General

Purpose	Aviation Service (Air Band)
Operating frequency	118.000 – 136.992 MHz
Display type	LCD
Display diagonal	2.3 \
Battery type	BP-288
Battery life (max)	10.5 h
Battery low indication	Yes
Number of batteries supported	1
Product color	Black
Operating temperature (T-T)	-10 - 60 °C
Number of batteries included	1 pc(s)
Antenna connector type	FA-B02AR

Weight and Dimensions

Depth	31.8 mm
Width	58.9 mm
Height	148.4 mm
Weight	384 g