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Last modified 2023-09-15

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Kenwood TW-4100A

A picture of Kenwood TW-4100A

SPECIFICATIONS

GENERAL
Type:Amateur VHF/UHF transceiver
Frequency range: USA and Canada
TX: 144-148 / 440-450 MHz
RX: 144-148 / 440-450 MHz
Other markets
TX: 142-149 / 430-440 MHz
RX: 142-149 / 430-440 MHz
Tuning steps:5 / 10 / 12.5 / 20 / 25 / 50 KHz
Frequency stability:±15 ppm @ -10 to +50°C (14 to 122°F)
Mode:FM
Channels / memory management: 10 regular (Two of these can store odd splits)
RAM storage with lithium battery backup
Repeater shift / offset:±600 KHz, ±1.6, 5 and 7.6 MHz
Power supply:13.8 VDC ±15%
Current drain / power consumption:RX: 600 mA (No signal)
TX: Max 9.5 A
Antenna impedance / connector:50 ohm / One SO-239 (2 m) and one N-jack (70 cm)
Dimensions (W*H*D):150*50*214 mm (5.91*1.97*8.42")
Weight:1.8 Kg (3.97 lb)
Other features:CTCSS/PL encoder option. DCL.




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: 30.825 MHz
2nd IF: 455 KHz
Sensitivity: 2 m: 0.2 uV (12 dB SINAD)
70 cm: 0.16 uV (12 dB SINAD)
Selectivity:15 KHz (-6 dB)
30 KHz (-60 dB)
Image rejection:
AF output power / speaker:2 W at 5% distortion / 8 ohm
External speaker connector:3.5 mm




TRANSMITTER SECTION
RF output power:

HighLow
2 m:45 W5 W
70 cm:35 W5 W
Modulation system:Reactance modulation
Max FM deviation (Factory set):±5 KHz
Spurious emissions:Better than -60 dB
Microphone impedance / connector:500-600 ohm / 8-pin (Metal locking ring connector)
Microphone input level:? mV




MISCELLANEOUS
Manufactured:Japan, 1987-19xx (Discontinued)
Additional info:
Related documents:User manual (9.2 MB)
Modifications and fixes:
Reviews:
Options / Accessories:
CD-10
MA-4000
MB-11
MC-43S
MC-48B
MC-55
MC-60A
MC-80
MC-85
MU-1
PG-2N
PG-3B
PS-50
PS-430
SP-40
SP-50
SP-430
TU-7
VS-2
Callsign display
Dual band mobile antenna, with diplexer
Mobile mount
Dynamic hand microphone with up/down buttons
Hand microphone with up/down buttons and DTMF
Mobile boom microphone
Desk microphone with preamplifier
Omnidirectional electret desk microphone
Unidirectional high-class electret desk microphone
DCL modem unit
DC power cable
DC line noise filter
Power supply. 13.8 VDC, 20 A
Power supply. 13.8 VDC, 10 A (20 A peak)
Mobile speaker. 4 ohm
Mobile speaker. 8 ohm
External speaker. 8 ohm
CTCSS/PL encoder unit
Voice synthesizer unit