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Last modified 2022-03-18

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Kenwood TH-78A

A picture of Kenwood TH-78A

SPECIFICATIONS

GENERAL
Type:Amateur VHF/UHF transceiver
Frequency range:TX: 144-148 / 438-450 MHz
RX: 100-180 / 300-500 / 800-1000 MHz
Tuning steps:5 / 10 / 12.5 / 15 / 20 / 25 KHz
Frequency stability:? ppm
Mode:TX: FM
RX: AM / FM
Channels / memory management: 50 regular with alpha tags (Six characters). Expandable with ME-1 option
1 call
Non-volatile EEPROM storage
Some miscellaneouos settings are held in RAM with lithium battery backup
Repeater shift / offset:0 to 99.9 MHz in 100 KHz steps
Power supply:6.3-12 VDC (Depending on battery pack)
or 6.3-16 VDC external
Current drain / power consumption:RX: 60-110 mA (Squelched)
TX: 0.15-1.5 A
Antenna impedance / connector:50 ohm / BNC
Dimensions (W*H*D):50*134*41 mm (1.97*5.28*1.61")
Weight:270 g (9.52 lb), without battery and antenna
Other features: CTCSS/PL (TSU-7 included for USA & Canada). DTMF & DTSS.
Crossband repeater function. 24 hr clock with alarm & timer.
Twin RX with VU/VV/UU reception.




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: 45.05 MHz (VHF), 58.525 MHz (UHF)
2nd IF: 455 KHz
Sensitivity: VHF: 0.16 uV (12 dB SINAD)
UHF: 0.18 uV (12 dB SINAD)
Selectivity:12 KHz (-6 dB), 28 KHz (-60 dB)
Image rejection:
AF output power / speaker:200 mW at 10% distortion / 8 ohm
External speaker connector:2.5 mm




TRANSMITTER SECTION
RF output power:

HighLowEL
2 m:2-5 W500 mW20 mW
70 cm:2-5 W500 mW10 mW

The high power setting depends on voltage / battery pack.
Modulation system:Reactance
FM deviation (Factory set):5 KHz
Spurious emissions:Better than -60 dB
Microphone impedance / connector:2 Kohm / 3-conductor (3.5 mm
Microphone input level:? mV




MISCELLANEOUS
Manufactured:Japan, 1992-199x (Discontinued)
Additional info:
Related documents:User manual (36 MB)
Modifications and fixes:
Reviews:
Options / Accessories:
BC-14
BC-15A
BH-6
BT-8
EMC-1
HMC-2
ME-1
PB-13
PB-14
PB-17
PB-18
PG-2W
PG-3F
PG-3H
SC-35
SC-36
SMC-31
SMC-32
SMC-33
SMC-34
TSU-7
WR-2
Wall charger
Rapid charger
Swivel mount
Battery case. Six R6/AA batteries
Clip microphone with earphone
Headset with VOX/PTT
Memory expansion unit
NiCd battery pack. 7.2 V, 700 mAh
NiCd battery pack. 12 V, 300 mAh
NiCd battery pack. 12 V, 700 mAh
NiCd battery pack. 7.2 V, 1100 mAh
DC cable
Filtered cigarette lighter power cord
Filtered cigarette lighter power cord
Soft case
Soft case
Speaker-microphone
Speaker-microphone
Remote control speaker-microphone
Speaker-microphone
CTCSS/PL unit
Water resistant bag