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Last modified 2020-03-09

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Kenwood TR-7850

A picture of Kenwood TR-7850 (USA version)

SPECIFICATIONS

GENERAL
Type:Amateur VHF transceiver
Frequency range:144-146 MHz (Europe)
143.900-149 MHz (USA)
Tuning steps:5 / 25 KHz (Europe)
5 / 10 KHz (USA)
Frequency stability:Less than 20 ppm @ -20 to +50C (-4 to +122F)
Mode:FM
Channels/memory management: 13 regular
1 with independent RX/TX frequencies
1 priority
Four R6/AA NiCd battery backup (Less than 2 mA with 13.8 VDC disconnected)
Repeater shift/offset:600 KHz
Power supply:13.8 VDC 15%
Current drain/power consumption:RX: 400-900 mA
TX: Max 9 A
Antenna impedance/connector:50 ohm / SO-239
Dimensions (W*H*D):175*64*220 mm (6.89*2.52*8.66")
Weight:2.2 Kg (4.85 lbs)
Other features: 1750 Hz tone call (Europe). DTMF encoder (USA).
CTCSS/PL option (USA)




RECEIVER SECTION
Receiver system:Double conversion superheterodyne
1st IF: 10.695 MHz
2nd IF: 455 KHz
Sensitivity:0.2 uV (12 dB SINAD)
Selectivity:12 KHz (-6 dB)
24 KHz (-60 dB)
Image rejection:
AF output power/speaker:2 W at 10% distortion / 8 ohm
External speaker connector:3.5 mm, 8 ohm




TRANSMITTER SECTION
RF output power: Hi: 40 W
Lo: 5~10 W
Modulation system:Variable reactance direct shift
FM deviation:5 KHz
Spurious emissions:Less than -60 dB
Microphone impedance/connector:500 ohm / 6-pin




MISCELLANEOUS
Manufactured:Japan, 1981-1982 (Discontinued)
Additional info: New price 1981 in the US: $399.00
Related documents:
Modifications:
Reviews:
Options/Accessories:
BC-1
MB-9
SP-40
Memory backup charger/power supply
Quick release mobile bracket
Mobile speaker