| 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! |
| DR-638T Features |
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| SPECIFICATIONS | ||
| Frequency range |
TX : 136～174MHz/400～480MHz
RX : 108～180MHz(AM/FM)/220～260MHz, 400～523MHz, 350～399.995MHz(FM) |
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| Channel steps |
25KHz (Wide mode) 20KHz (Middle mode) 12.5KHz (Narrow mode) |
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| Channel spacing |
2.5KHz,5KHz, 6.25KHz, 8.33KHz, 10KHz, 12.5KHz, 15KHz, 20KHz, 25KHz, 30KHz, 50KHz |
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| 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) | |
| TRANSMITTER | ||
| WIDE mode | NARROW mode | |
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Output
power
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VHF
- 50W/25W/10W/5W
UHF - 40W/25W/10W/5W |
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| 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% | |
| RECEIVER | ||
| 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% | |
| STANDARD ACCESSORIES | ||
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| OPTIONAL ACCESSORIES | ||
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