Icom IC-25H Instruction Manual page 3

GENERAL
Numbers of semiconductors
Frequency coverage
Frequency resolution
Frequency control
Frequency stability
Memory channels
Usable conditions
Antenna impedance
Power supply requirement
Current drain (at 13.8V DC)
Dimensions
Weight
TRANSMITTER
Output power
Emission mode
Modulation system
Max. frequency deviation
Spurious emission
Transistor 49
FET 4
IC 21
Diode 92
143.8 ~ 148.2MHz
(144.0 ~ 146.0MHz version ог 144.0 ~ 148.0MHz version
available)
5K Hz/15KHz steps (5K Hz/25KHz version available)
Microcomputer based 5KHz step Digital PLL synthesizer
Independent Dual VFO Capability.
Within £1.5KHz
5 channels with any in-band frequency programmable
Temperature: —10°С ~ 60°C (14°F ~ 140°F)
Operational time: Continuous
50 ohms unbalanced
13.8V DC +15% (negative ground) 10A Max.
Transmitting HIGH (45W) Approx. 9.5A
LOW (2W) Approx. 2.7A
Receiving At max audio output Approx. 0.75A
Squelched Approx. 0.6A
5Omm(H) х 140mm(W) х 222mm(D)
Approx. 1.9kg
45W (HIGH), 2W (LOW)
16F3
Variable reactance frequency modulation
+5KHz
More than 60dB below carrier
Microphone 600 ohm electret condenser microphone with push-td-talk
switch, scanning buttons and 16 key dual tone pad (or
1750Hz tone-burst unit)
Simplex, Duplex (Any in-band 100KHz steps frequency
separation programmable)
Operating mode
RECEIVER
Receiving system Double-conversion superheterodyne
Modulation acceptance : 1683
Intermediate frequency : Ist: 16.9MHz
2nd: 455KHz
Sensitivity More than 30dB S+N+D/N+D at Тим
Less than 0.6uV for 20dB Noise quieting
Less than 0.4uV
More than 60dB
More than +7.5KHz at —6dB point
Less than +15KHz at —60dB point
More than 2.0W
4 ~ 8 ohms
Squelch sensitivity
Spurious response rejection ratio
Selectivity
Audio output power
Audio output impedance