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Last modified 2022-03-17

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Kenwood TH-25AT

A picture of Kenwood TH-25AT

SPECIFICATIONS

GENERAL
Type:Amateur VHF transceiver
Frequency range:TX: 144-148 MHz
RX: 144-148 MHz
Tuning steps:5 / 10 KHz
Frequency stability:? ppm @ -20 to +50C (-4 to 122F)
Mode:FM
Channels / memory management: 14 regular
Channel 13 and 14 can also store odd splits
RAM storage with lithium battery backup
Repeater shift / offset:600 KHz
Power supply:5.8-12 VDC (Depending on battery pack)
or 5.8-16 VDC external
Current drain / power consumption:RX: 16-100 mA
TX: 0.4-1.2 A
Antenna impedance / connector:50 ohm / BNC
Dimensions (W*H*D):58*138*30 mm (2.28*5.43*1.18"), with PB-6
Weight:400 g (14.11 oz), with PB-6
Other features:Backlit display. DTMF keypad.




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: 16.9 MHz
2nd IF: 455 KHz
Sensitivity:0.16 uV (12 dB SINAD)
Selectivity:12 KHz (-6 dB)
28 KHz (-40 dB)
Image rejection:
AF output power / speaker:200 mW at 10% distortion / 8 ohm
External speaker connector:2.5 mm




TRANSMITTER SECTION
RF output power:

HighLow
2 m:2.5-5 W500 mW

The high power setting depends on voltage / battery pack.
Modulation system:Reactance
FM deviation (Factory set):5 KHz
Spurious emissions:Better than -60 dB
Microphone impedance / connector:2 Kohm / 3-conductor (3.5 mm)
Microphone input level:? mV




MISCELLANEOUS
Manufactured:Japan, 1987-1989 (Discontinued)
Additional info:
Related documents:User manual (1.9 MB)
Modifications and fixes:
Reviews:
Options / Accessories:
BC-9
BC-10
BC-11
BT-6
DC-1 with PG-2V
DC-1 with PG-3E
HMC-2
HS-7
HS-8
PB-5
PB-6
PB-7
PB-8
PB-9
RA-3
SC-14
SC-15
SC-16
SMC-31
TSU-6
WR-1
Wall charger. For PB-6 and PB-7
Compact charger
Rapid charger
Battery case. Six R6 / AA batteries
DC adapter and cable
DC adapter and cable
Headset with VOX/PTT
Micro headphones
Micro headphone
NiCd battery pack. 7.2 V, 200 mAh
NiCd battery pack. 7.2 V, 600 mAh
NiCd battery pack. 7.2 V, 1100 mAh
NiCd battery pack. 12 V, 600 mAh
NiCd battery pack with built-in charger. 7.2 V, 600 mAh
Telescopic antenna for 2 m
Soft case. For use with PB-5
Soft case. For use with PB-6 and BT-6
Soft case. For use with PB-7, PB-8 and PB-9
Speaker-microphone
CTCSS/PL encoder/decoder unit
Water resistant bag