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Top » Catalog » PRODUCT CATEGORIES » ALINCO RADIOS » DR-638T » Alinco DR-638T Dual Band Part 90 Commercial Radio VHF UHF
Alinco DR-638T dual-band VHF/UHF commercial transceiver offers full duplex capability, cross-band repeat and a remotely mountable control head, the DR-638 is a solid performer for base or mobile operation. Transmit coverage is 136-174 and 400-480 MHz. Receive ranges are: 108-180 MHz (AM/FM modes), 220-260, 400-532 and 350-400 MHz FM mode. With a highly visible large, 6 character alphanumeric display features variable display colors for custom illumination. Multiple power levels are available. VHF 50, 25, 10, 5 watts and UHF 40, 25, 10, 5 watts.

Features include: 758 channels, 6 character alphanumeric backbit display, internal duplexer for single antenna operation, removable control head expanded receive range including AM VHF air band, Cross-band repeat, illuminated DTMF EMS-77 microphone with direct frequency entry and remote control, CTCSS, DCS, Tone-Burst Tones, 2-tone and 5-tone signaling and CTCSS Tone and DCS scan.

The supplied EMS-77 backlit, DTMF microphone allows remote control of the transceiver. Also comes with ADFM78 mounting bracket, spare fuse, mic hanger, manual and DC power cord.


Frequency range TX : 136 - 174 MHz/400 - 480 MHz
Frequency Range: RX : 108 - 180 MHz (AM/FM)/220 - 260 MHz,
Frequency range: RX: 400 - 523 MHz,
Frequency Range: RX: 350 - 399.995 MHz (FM)
Channel steps: 25KHz (Wide mode)
Channel Steps: 20KHz (Middle mode)
Channel Steps: 12.5KHz (Narrow mode)
Channel spacing: 2.5KHz,5KHz, 6.25KHz, 8.33KHz, 10KHz,
Channel spacing: 12.5KHz, 15KHz, 20KHz, 25KHz, 30KHz, 50KHz
Memory channel 758 Channels
Antenna impedance 50 ohm unbalanced
Frequency stability +/- 2.5ppm TCXO
Microphone impedance 2K ohm
Squelch Carrier/CTCSS/DCS/5Tone/2Tone/DTMF
Power supply requirement 13.8 VDC +/- 15% (11.7-15.8V)
Current drain Approx. 11A TX high / 700mA RX max. / 500mA RX squelched
Usable temperature range 14F ~ 140F (-26C ~ +60C)
Dimensions (w/o projection) 5.471.588.35 in approx. 13940212 mm
Weight Approx. 1.14Kg (40.21oz)

WIDE mode NARROW mode
Output power: VHF - 50W/25W/10W/5W
Output power: UHF - 40W/25W/10W/5W
Modulation: 16KΦF3E 11KΦF3E
Adjacent Channel Power: ≥70dB ≥60dB
Hum & Noise: ≥40dB ≥36dB
Spurious Emission: ≥60dB ≥60dB
Audio Response: +1~-3dB(0.3~3KHz) +1~-3dB(0.3~2.55KHz)
Audio Distortion: ≤5%


WIDE mode NARROW mode
Sensitivity (12dB Sinad): ≤0.25μV ≤0.35μV
Adjacent Channel Selectivity: ≥70dB ≥60dB
Intermodulation: ≥65dB ≥60dB
Spurious Rejection: ≥70dB ≥70dB
Audio Response: +1~-3dB(0.3~3KHz) +1~-3dB(0.3~2.55KHz)
Hum & Noise: ≥45dB ≥40dB
Audio distortion: ≤5%
Audio power output: >2W@10%


* Instruction manual
* EMS-77 DTMF Speaker/Microphone
* ADFM78 Mounting Bracket w/screw kit
* ADUA-38 DC Power Cable
* Microphone Holder
* Alarm Cable

This product was added to our catalog on Wednesday 02 August, 2017.
RW ANTENNA STORE ~ 716-434-9216 ~ 6150 Crosby Rd. ~ Lockport, N.Y. 14094 ~ Email: