RigPix logo

Alinco logo


Back to main

Back to Alinco

Next mobile VHF/UHF


Copyright logo


Last modified 2024-03-27

Valid HTML 4.01 Transitional

Alinco DR-638H

A picture of Alinco DR-638H

SPECIFICATIONS

GENERAL
Type:Amateur VHF/UHF transceiver
Frequency range: TX: 136-174 / 400-480 MHz
RX: RX: 108-180 / 220-260 / 350-523 MHz
Tuning steps:2.5 / 5 / 6.25 / 10 / 12.5 / 15 / 20 / 25 / 30 / 50 KHz
Frequency stability:±2.5 ppm (No temperature reference)
Mode:TX: FM / NFM
RX: AM / FM / NFM
Channels / memory management: 758 regular with alpha tags
1 call
Repeater shift / offset:±0 to 99.995 MHz
Power supply:13.8 VDC ±15%
Current drain / power consumption:RX: 300 mA
TX: Max 8 A
Antenna impedance / connector:50 ohm / SO-239
Dimensions (W*H*D):139*40*212 mm (5.5*1.6*8.34")
Weight:1.15 Kg (2.53 lb)
Other features: Detachable control head. CTCSS/PL and DCS. 2-tone and 5-tone selcall.
Multi color backlite. Theft alarm. Twin RX (V/U, V/V, U/U).




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: ? MHz
2nd IF: ? KHz
Sensitivity: FM: 0.25 uV (12 dB SINAD)
NFM: 0.35 uV (12 dB SINAD)
Selectivity:FM: 70 dB (Adjacent channel)
NFM: 60 dB (Adjacent channel)
Image rejection:
AF output power / speaker:2 W at 10% distortion / ? ohm
External speaker connector:




TRANSMITTER SECTION
RF output power:

HighMidMid 2Low
2 m:50 W25 W10 W5 W
70 cm:40 W25 W10 W5 W
Modulation system:Variable reactance
Max FM deviation (Factory set):FM: ±5 KHz
NFM: ±2.5 KHz
Spurious emissions:Better than -60 dB
Microphone impedance / connector:? ohm / 8-pin (Metal locking ring connector)
Microphone input level:? mV




MISCELLANEOUS
Manufactured:China, 2014-20xx
Additional info: The supplied microphone is actually a speaker-mike, which can be
very handy in a noisy vehicle.
New price 2015 in Germany: 298.00 Euro
New price 2015 in England: £249.95
Related documents:User manual (1.8 MB)
Modifications and fixes:
Reviews:
Options / Accessories:
EDS-28
ERW-12
Separation kit
USB programming cable and software kit
A rear picture of Alinco DR-638H