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Last modified 2025-03-25

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Kenwood TM-721GD

A picture of Kenwood TM-721GD

SPECIFICATIONS

GENERAL
Type:Amateur VHF/UHF transceiver
Frequency range: Japanese domestic market
TX: 144-146 / 430-440 MHz
RX: 144-146 / 430-440 MHz
Tuning steps:5 / 10 / 12.5 / 15 / 20 / 25 KHz
Frequency stability:±10 ppm @ -20 to +60°C (-4 to +140°F)
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:±600 KHz (2 m)
±5 MHz (70 cm)
Power supply:13.8 VDC ±15% ("T" connector, on pigtail)
Current drain / power consumption:RX: Less than 600 mA (No signal)
TX: Max 7.9 A
Antenna impedance / connector:50 ohm / Two SO-239 (On pigtails)
Dimensions (W*H*D):150*50*219 mm (5.91*1.97*8.62")
Weight:1.8 Kg (3.97 lb)
Other features:CTCSS/PL encoder. Twin RX.




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: 10.7 MHz (2 m) - 30.825 MHz (70 cm)
2nd IF: 455 KHz
Sensitivity: 0.16 uV (12 dB SINAD)
Squelch sensitivity:0.09 uV (Threshold)
Noise figure:
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:TS "Minijack" (3.5 mm), 8 ohm




TRANSMITTER SECTION
RF output power:

HighLow
2 m:25 W10 W
70 cm:25 W10 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 (Male locking ring jack)
Microphone input level:? mV




MISCELLANEOUS
Manufactured:Japan, 1988-19xx (Discontinued)
Additional info:
Related documents: 2 m RF power module: S-AV17
70 cm RF power module: M57788M
Modifications and fixes:
Reviews:
Options / Accessories:
DW-1
MB-11
MC-44
MC-44DM
MC-55
MC-60S/8
MC-80
MC-85
PG-2N
PG-3B
PS-32
RC-10
SP-41
SP-50B
TSU-6
Dual watch unit (439 MHz)
Mobile mounting bracket
Standard hand microphone
Hand microphone with DTMF pad
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
AC power supply
Remote controller with DTMF/autopatch
Mobile speaker, 4 ohm
Mobile speaker, 8 ohm
Tone squelch unit
A picture of Kenwood TM-721E with the optional RC-10