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The new DR-638 dual-band transceiver from Alinco makes a sharp attractive addition to any operating environment. Starting with full duplex capability, cross-band repeat and a remotely mountable control head, the DR-638 is a solid performer for base or mobile operation. With a highly visible large, 6 character alphanumeric display features variable display colors for
custom illumination. Ignition key on/off feature, theft alarm, extended receive capabilities, a variety of signaling and scan modes are also included at no extra cost!

The backlit, DTMF microphone EMS-77 allows remote control of the transceiver. Put the DR-638 with its good looks and smart operating features to work right away in your base station or vehicle as a
reliable and easy-to-use, high-quality VHF/UHF transceiver that is perfect for simplex and repeater operations!

ALINCO DR-638T Features

  • VHF/UHF full duplex operation includes V/U and U/V modes.
  • 758 channels programmable
  • H/M/L power output settings- VHF:50W/25W/10W/5W,UHF:40W/25W/10W/5W
  • Large 6 character alphanumeric backlit display
  • Inversion scrambling
  • Internal duplexer – single antenna connector
  • Removable control head can be remotely mounted or inverted
    for optimal speaker placement
  • Expanded receive range includes AM civil aviation band
  • Crossband repeater 
  • Variable Display color tone
  • Illuminated DTMF EMS-77 microphone allows direct VFO frequency entry and remote control of transceiver
  • CTCSS, DCS, Tone-Burst Tones,2-tone and 5-tone signaling
  • CTCSS Tone and DCS scan
  • Variety of scan modes and priority channel monitoring
  • TOT, BCLO, Talk Around, Reverse and ANI
  • Utility software and cable cloning
  • Ignition key activated power on/off feature
 Frequency range TX : 136174MHz/400480MHz
RX : 108
523MHz, 350399.995MHz(FM)
 Channel steps 25KHz (Wide mode)
20KHz (Middle mode)
12.5KHz (Narrow mode)
 Channel spacing 2.5KHz,5KHz, 6.25KHz, 8.33KHz, 10KHz,
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 14°F ~ 140°F (-26°C ~ +60°C)
 Dimensions (w/o projection) 5.47×1.58×8.35 in approx.
139×40×212 mm 
 Weight Approx. 1.14Kg (40.21oz)
 WIDE mode NARROW mode
 Output power
VHF - 50W/25W/10W/5W
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

  • ERW-12 USB Data Programming Cable

  • EMS-53 Plain Microphone

  • EDS-28 Separation kit

  • EDS-29 Cloning cable

  • DM-330FX/ DM-330MVT Switching Power Supply

  • RTS APK-638 (Prog. Soft/USB cable pack for DR-638)

DR-638T Brochure (DR-638.pdf, 384 Kb) [Download]

DR-638T User Manual (DR-638_b61v-1h.pdf, 1,923 Kb) [Download]