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Last modified 2022-11-14

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Alinco DR-420HX

A picture of Alinco DR-420HX

SPECIFICATIONS

GENERAL
Type:Amateur UHF transceiver
Frequency range: Japanese domestic market
TX: 430-440 MHz
RX: 350-512 MHz
Tuning steps:? KHz
Frequency stability:±2.5 ppm (No temperature reference)
Mode:FM / NFM (DV option)
Channels / memory management:
Repeater shift / offset:±?
Power supply:13.8 VDC
Current drain / power consumption:RX: 600-800 mA
TX: Max 10 A (Early version), 13 A (Later version)
Antenna impedance / connector:50 ohm / SO-239
Dimensions (W*H*D):140*40*174 mm (5.51*1.58*6.85")
Weight:1 Kg (2.2 lb)
Other features:CTCSS/PL and DCS. 10F3 digital voice option (EJ-47U).




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: 30.85 MHz
2nd IF: 455 KHz
Sensitivity:0.25 uV (12 dB SINAD)
Selectivity: FM
12 KHz (-6 dB)
28 KHz (-60 dB)
NFM
6 KHz (-6 dB)
16 KHz (-60 dB)
Image rejection:
AF output power / speaker:2 W at 10% distortion / 8 ohm
External speaker connector:




TRANSMITTER SECTION
RF output power:

HighMidLow
70 cm (Early version):
70 cm (Later version):
35 W
50 W
10 W
20 W
5 W
5 W
Modulation system:Reactance modulation
Max FM deviation (Factory set):FM: ±5 KHz
NFM: ±2.5 KHz
Spurious emissions:Better than -60 dB
Microphone impedance / connector:2 Kohm / 8-pin (Metal locking ring connector)
Microphone input level:? mV




MISCELLANEOUS
Manufactured:Japan, 2003-2021 (Discontinued)
Additional info:
Related documents:
Modifications and fixes:
Reviews:
Options / Accessories:
EJ-47U 10F3 digital voice unit