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DR-638HE

Mobile/Base VHF+UHF Full-Duplex Transceiver

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Features of DR638HE

VHF/UHF full duplex operation includes V/V and U/U 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 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 & Cross-band repeat where permitted. (Modification required) 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 Variety of scan modes and priority channel monitoring TOT, BCLO, Talk Around, Reverse and ANI Utility software and cable cloning (Optional) Ignition key activated power on/off feature

Free utility Software Download:

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Standard Accessories:

• Microphone (EMS-77)
• DC cable
• Bracket & Hardware pack
• Instruction Manual

Optional Accessories

• EDS-28 Front-control unit separation kit (front-panel bracket, 5m cable and a hardware pack)
• PC connection cable ERW-12 & EDS-29 Cable-cloning cable

Specifications

Genaral
Frequency range:	TX/RX VHF 144.000-145.9975 MHz UHF 430.000-439.9975 MHz (FCC/IC amateur models not available : Land mobile version is FCC part 90 certified)
Modulation:	16K0F3E(FM)/8K50F3E(Narrow FM)/F1E(Optional digital voice)/F2D(1200bps)/A3E(RX only/AM) NOTE: 9600bps packet is not usable
Channel steps:	5, 6.25, 8.33, 10, 12.5, 15, 20, 25, 30, 50, 100KHz
Memory channel:	Free-programmable 758 ch
Antenna impedance:	50ohm unbalanced
Frequency stability:	+/- 2.5ppm
Power Supply Requirement:	13.8V DC +/- 15% Negative ground
Current Drain:	Approx. 12A TX high / 0.6A RX max. / 0.4A RX squelched
Operating temperature:	-20digC to +60digC
Dimensions (w/o projection):	139x40x212 mm or 5.47x1.58x8.35 inches approx.
Weight:	1.14kg or 40.21 oz approx.
Transmitter
Power Output:	High 50W VHF-40W UHF / Mid25W / Low 10W approx.
Modulation system:	Variable Reactance Frequency Modulation
Spurious emission:	Less than -60dB
Maximum frequency deviation:	+/- 5 KHz (FM) / +/- 2.5 KHz (NFM)
Receiver
Receive system:	Double-conversion superheterodyne
Sensitivity (-12dB SINAD):	VHF 0.25uV / UHF 0.35uV or better
Squelch:	Carrier/CTCSS/DCS/5Tone/2Tone/DTMF
Audio output power:	2.0 W (8 ohm, 10% distortion)
Specifications subject to change without notice or obligation. Performance specification apply only to the amateur bands. Permit required for MARS use.