Deskripsi
ALINCO DR-638 VHF+UHF Analog FM Land Mobile/Base Transceiver
Dual-Band Mobile Transceiver with Full Duplex Capability
The ALINCO DR-638 VHF+UHF Analog FM Land Mobile/Base Transceiver is a versatile, durable radio designed for mobile and base operations. With powerful dual-band capabilities, this transceiver provides users with high-quality communications across the VHF and UHF frequencies, making it ideal for a wide range of professional and amateur radio applications. The DR-638 is well suited for land mobile use, emergency services, and base station setups that require consistent and reliable analog FM transmissions.
Features
- VHF/UHF full duplex operation includes V/V and U/U modes.
- 758 channels programmable (HE: available as programmable memory channels)
- H/M/L power output settings-
- VHF: 50W/25W/10W/5W,UHF: 40W/25W/10W/5W
- Large 6 character alphanumeric backlit display
- Inversion scrambling (DR-638 only)
- 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 (DR-638 only)
- Crossband repeat (DR-638 only)
- 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
Specifications
General
| Frequency Range (MHz) | TX: 136 – 174MHz/400-480MHz RX: 108 – 180MHz(AM/FM)/220 – 260MHz 400 – 523MHz, 350 – 399.995MHz(FM) |
| Number of Channels | 758 channels |
| Channel Spacing | 25KHz (Wide mode) 20KHz (Middle mode) 12.5KHz (Narrow mode) |
| Channel Step | 2.5K Hz,5KHz , 6.25KHz, 8.33KHz, 10KHz, 12.5KHz, 15KHz, 20KHz, 25KHz, 30KHz, 50KHz |
| Operating Voltage | 13.8V DC ±15% |
| Squelch | Carrier/CTCSS/DCS/5Tone/2Tone/DTMF |
| Frequency Stability | ±2.5ppm |
| Operating Temperature | -20°C to +60°C |
| Dimensions (W x H x D) | 139 × 40 × 212 mm |
| Weight | Approx. 1.14kg |
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% |
|
Transmitter
|
Wide Mode |
Narrow Mode |
|
| Power Output |
50W/25W/10W/5W(VHF) |
|
| 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% |
|
Specifications and contents on this subject to change without notice or obligation.
Supplied Accessories (*Bracket and DC cable may slightly differ from the original parts.)
• Mobile Bracket (ADFM78) • DC Cable (ADUA38 with Fuse Holder) (15A Fuse)
• Back-Lit Microphone with Keypad (EMS-77)
Standard accessories declared herein are our factory default and may vary at moment of sales depending on the market and Dealers’ sales policy.
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