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Last modified 2022-03-20

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Kenwood TH-K4AT

A picture of Kenwood TH-K4AT

SPECIFICATIONS

GENERAL
Type:Amateur UHF transceiver
Frequency range:TX: 400-470 MHz (General market)
RX: 400-470 MHz
Tuning steps:5 / 6.25 / 10 / 12.5 / 15 / 20 / 25 / 30 / 50 / 100 KHz
Frequency stability:5 ppm @ -20 to + 60C (-4 to +140F)
Mode:FM / FMN
Channels / memory management: 100 regular (Without using 6 character alpha tags)
50 regular (If using 6 character alpha tags)
1 call
Non-volatile EEPROM storage
Repeater shift / offset:0-69.95 MHz in 50 KHz steps (5 MHz default)
Power supply:6-9 VDC (Depending on battery pack)
or 12-16 VDC external
Current drain / power consumption:RX: 100 mA (Squelched)
TX: 0.8-1.8 A
Antenna impedance / connector:50 ohm / SMA
Dimensions (W*H*D):58*110*36 mm (2.28*4.33*1.42"), with PB-43N
Weight:320 g (11.29 oz), with PB-43N
Other features: CTCSS/PL and DCS with tone scan. DTMF. VOX. Backlit display and keypad.
PC-programmable.




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: 38.85 MHz
2nd IF: 450 KHz
Sensitivity:430-450 MHz: 0.18 uV (12 dB SINAD)
Selectivity:
Image rejection:
AF output power / speaker:400 mW at 10% distortion / 8 ohm
External speaker connector:2.5 mm




TRANSMITTER SECTION
RF output power:

HighMidLow
70 cm:3.5-5 W1.2-1.5 W500 mW

The high and mid power setting depends on voltage / battery pack.
Modulation system:Reactance
FM deviation (Factory set):FM: 5 KHz
NFM: 2.5 KHz
Spurious emissions:Less than -60 dB
Microphone impedance / connector:2 Kohm / 3-conductor (3.5 mm)
Microphone input level:? mV




MISCELLANEOUS
Manufactured:2003-200x (Discontinued)
Additional info:
Related documents:User manual (1.3 MB)
Modifications and fixes:
Reviews:
Options / Accessories:
BC-21
BT-14
EMC-3
HMC-3
KHS-21
KSC-24
MCP-1A
PB-43N
PG-2W
PG-3J
PG-4Y
SMC-32
SMC-33
SMC-34
Wall charger
Battery case, for six R6 / AA batteries
Clip microphone with earphone
Headset with VOX/PTT
Headset
Rapid charger
Memory channel control software
NiMH battery pack. 7.2 V, 1100 mAh
DC power cable
Filtered cigarette lighter power cable
PC interface cable (RS-232C, DB-9)
Speaker-microphone
Remote control speaker-microphone
Remote control speaker-microphone with volume control