User's Manual

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New and Innovative Features
758 memory channels, full duplex operation with independent
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volume and squelch controls
50 Watts of power output on the VHF band and 40 Watts on the
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UHF band with cross band repeater function.
UU, UV,VU,VV operations with full-dupe and wideband receive
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capability including Air band in AM and FM broadcast.
A large LCD with selectable backlit color, Keys and microphone
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keypads are also backlit and ensures comfortable operation in the
dark.
CTCSS, DCS, 2-tones, 5-tones and tone-bursts for repeater access
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and sellective calling operations.
Various scan functions including CTCSS/DCS Scan function.
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Variety of signaling such as emergency alarm, ANI/DTMF, remote-
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kill/revive features.
Multi groups of fix scrambling and 2 groups of self define
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scrambling.(commercial models)
Compander function to decrease the background noise and
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enhance audio clarity.(commercial models)
Theft alarm provides extra safety.
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Operating Frequency Ranges
<Band 1> *For DR638
Tx: 136-174MHz
400-480MHz
Rx: 108-180MHz
220-260MHz
350-399.995MHz
400-523MHz