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Last modified 2022-03-20

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Kenwood TH-225A

A picture of Kenwood TH-225A

SPECIFICATIONS

GENERAL
Type:Amateur VHF transceiver
Frequency range:TX: 144-148 MHz
RX: 141-163 MHz
Tuning steps:5 / 10 / 15 / 20 / 25 KHz
Frequency stability:? ppm
Mode:FM
Channels / memory management: 10 regular
RAM storage with lithium battery backup
Repeater shift / offset:0.1-9.9 MHz in 100 KHz steps
Power supply:6.3-12 VDC (Depending on battery pack)
or 7.2-16 VDC external (Barrel connector, center positive)
Current drain / power consumption:RX: 50 mA (Squelched)
TX: 0.7-1.9 A
Antenna impedance / connector:50 ohm / BNC
Dimensions (W*H*D):67*190*37 mm (2.64*7.48*1.46")
Weight:600 g (1.32 lb), with battery pack and antenna
Other features:CTCSS/PL encoder. DTMF. Backlit display.




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: 16.3 MHz
2nd IF: 455 KHz
Sensitivity:0.2 uV (12 dB SINAD)
Selectivity:12 KHz (-6 dB)
24 KHz (-40 dB)
Image rejection:
AF output power / speaker:500 mW at 10% distortion / 8 ohm
External speaker connector:2.5 mm




TRANSMITTER SECTION
RF output power:

HighLow
2 m:1.5-6 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:? ohm / 3-conductor (3.5 mm)
Microphone input level:? mV




MISCELLANEOUS
Manufactured:Japan, 198x-199x (Discontinued)
Additional info:
Related documents:User manual (11.9 MB)
Modifications and fixes:
Reviews:
Options / Accessories:
BC-2
BC-7
BC-8
BH-5
BT-5
HS-7
HS-8
MB-4
PB-1
PB-2
PB-3
PB-4
PG-2V
PG-3E
RA-3
SC-12
SC-13
SC-27
SMC-30
TSU-4
Battery charger. For PB-2 only
Rapid charger. For PB-1, PB-2, PB-3 and PB-4
Compact charger. For PB-1, PB-2, PB-3 and PB-4
Swivel hook
Battery case. Six R6 / AA batteries
Ultra-light headphones
Micro headphone
Mobile bracket
NiCd battery pack. 12 V, 800 mAh
NiCd battery pack. 8.4 V, 500 mAh
NiCd battery pack. 7.2 V, 800 mAh
NiCd battery pack. 7.2 V, 1600 mAh
DC cable
Filtered cigarette lighter power cable
Telescopic antenna
Softcase
Softcase, for use with PB-1 and PB-4
Softcase
Speaker-microphone
CTCSS/PL decoder unit