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Last modified 2023-09-15

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Kenwood TM-621A

A picture of Kenwood TM-621A

SPECIFICATIONS

GENERAL
Type:Amateur VHF transceiver
Frequency range: USA
TX: 144-148 / 220-225 MHz
RX: 144-148 / 220-225 MHz
Tuning steps:5 / 10 / 12.5 / 15 / 20 / 25 KHz
Frequency stability:
Mode:FM
Channels / memory management: 14 regular (0-d) of which #1 functions as priority channel
1 call
2 band edge search limits
2 odd repeater split
RAM storage with lithium battery backup
Repeater shift / offset:2 m: ±600 KHz
1.25 m: ±1.6 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 / SO-239 (On pigtail)
Dimensions (W*H*D):150*50*219 mm (5.9*2*8.6")
Weight:1.8 Kg (3.97 lb)
Other features:Built-in CTCSS/PL encoder.




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: 16.9 MHz (2 m) - 30.825 MHz (1.25 m)
2nd IF: 455 KHz
Sensitivity: 2 m: 0.2 uV (12 dB SINAD)
1.25 m: 0.18 uV (12 dB SINAD)
Selectivity:12 KHz (-6 dB)
24 KHz (-60 dB)
Image rejection:
AF output power / speaker:2 W at 5% distortion / 8 ohm
External speaker connector:3.5 mm, 8 ohm




TRANSMITTER SECTION
RF output power:

HighLow
2 m:45 W5 W
1.25 m:25 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, 1988-199x (Discontinued)
Additional info:FCC ID: ALH9TKTM-621A
Related documents: User manual (2 MB)
Service manual (13 MB)
Modifications and fixes:
Reviews:
Options / Accessories:
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MC-85
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PG-3B
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SP-41
SP-50B
SP-430
SW-100B
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TSU-6
Mobile mounting bracket
Hand microphone with up/down and DTMF keypad
Mobile microphone with up/down buttons
Desk microphone with up/down and lock buttons
Desk microphone with up/down and lock buttons
High class electret desk microphone
DC power cable
DC line noise filter
Heavy duty DC power supply
DC power supply
Remote controller with DTMF/autopatch
Mobile speaker, 4 ohm
Mobile speaker, 8 ohm
External speaker
Compact SWR/Power/Volt meter, 140-450 MHz
SWR/power meter. Peak or RMS. 140-450 MHz
CTCSS/PL tone decoder unit