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Last modified 2023-09-14

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Kenwood TH-255A

A picture of Kenwood TH-255A

SPECIFICATIONS

GENERAL
Type:Amateur VHF transceiver
Frequency range: USA
TX: 144-148 MHz
RX: 136-174 MHz
Tuning steps:5 / 6.25 / 10 / 12.5 / 15 / 20 / 25 / 30 / 50 / 100 KHz
Frequency stability:5 ppm @ -10 to +50C (14 to 122F)
Mode:FM
Channels / memory management: 100 regular (If used without six character alpha tags)
50 regular (If used with six character alpha tags)
1 call
3 program scan pairs
Priority function
Non-volatile EEPROM storage
Repeater shift / offset:0-29.95 MHz
Power supply:6-9 VDC (PB-43N or BT-14 battery packs)
Current drain / power consumption:RX: 30-130 mA
TX: Max 2 A
Antenna impedance / connector:50 ohm / SMA
Dimensions (W*H*D):58*120*39 mm (2.28*4.72*1.54"), with BT-14
Weight:259 g (9.14 oz), with BT-14
Other features:CTCSS/PL and DCS with tone scan. DTMF. Backlit display.




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: 38.85 MHz
2nd IF: 450 KHz
Sensitivity:144-148 MHz: 0.18 uV (12 dB SINAD)
Selectivity:10 KHz (-6 dB)
28 KHz (-40 dB)
Image rejection:
AF output power / speaker:400 mW at 10% distortion / ? ohm
External speaker connector:2.5 mm




TRANSMITTER SECTION
RF output power:

HighLow
2 m:3.5-5.5 W300 mW

The high power setting depends on voltage / battery pack.
Modulation system:Reactance
Max 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:2007-200x (Discontinued)
Additional info:
Related documents:User manual (3.3 MB)
Modifications and fixes:
Reviews:
Options / Accessories:
BT-14
EMC-3
HMC-3
HMC-4
HS-9
KHS-21
KHS-24
PB-43N
SMC-32
SMC-33
SMC-34
Battery case. Six LR6/AA batteries
Clip microphone
Headset
Headset
Earphone
Headset
Rapid charger
NiMH battery pack
Speaker-microphone
Speaker-microphone
Speaker-microphone