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Last modified 2022-06-29

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Kenwood TR-7400A

A picture of Kenwood TR-7400A

SPECIFICATIONS

GENERAL
Type:Amateur VHF transceiver
Frequency range: USA
TX: 144-148 MHz
RX: 144-148 MHz
Tuning steps:5 / 10 / 100 KHz
Frequency stability:Less than 750 Hz @ 25C (77F)
Mode:FM
Channels / memory management:No
Repeater shift / offset:600 KHz
Power supply:11.5-16 VDC (2-pin connector)
Current drain / power consumption:RX: Less than 1 A (No signal)
TX: 4.5-8 A
Antenna impedance / connector:50 ohm / SO-239
Dimensions (W*H*D):182*74*270 mm (7.16*2.91*10.63")
Weight:2.8 Kg (6.17 lb)
Other features:CTCSS/PL, DTMF and tone burst options.




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: 10.7 MHz
2nd IF: 455 KHz
Sensitivity:0.4 uV (20 dB quieting)
Selectivity:12 KHz (-6 dB)
Image rejection:70 dB
AF output power / speaker:1.5 W at 10% distortion / 8 ohm
External speaker connector:3.5 mm




TRANSMITTER SECTION
RF output power:

HighLow
2 m:25 W5 W
Modulation system:Variable reactance direct shift
FM deviation (Factory set):5 KHz
Spurious emissions:Better than -60 dB
Microphone impedance / connector:500 ohm / 4-pin (Metal locking ring connector)
Microphone input level:? mV




MISCELLANEOUS
Manufactured:Japan, 197x-198x (Discontinued)
Additional info:
Related documents: User manual (2.4 MB)
Service manual (6.5 MB)
Modifications and fixes:
Reviews:
Options / Accessories:
PS-8 Power supply. 13.8 VDC