Radio modem with low power consumption


    Model: GD230BS

    Type: Radio modem with low power consumption

    Air Rate: 4800/2400/1200bps

    RF Output Power: 25 W

    Frequency range: 230 / 400 / 150 MHz


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    Model

    Frequency Range

    RF Output Power

    Emission Current Dimensions

    GD230BS

    223~235MHz

    10W / 1.5W

    1.8A / 0.7A @12V

    12.5×7.6×3.4cm

    GD230VS

    223~235MHz

    25W / 8W

    5.0A / 1.8A @12V

    14.5×10.9×4.1cm

    GD230CS

    223~235MHz

    25W

    5.0A / 1.8A @12V

    13.6×14.0×4.4 cm

    GD400BS

    400~470MHz

    7.5W / 1.5W

    2.0A / 0.9A @12V

    12.5×7.6×3.4cm

    GD400VS

    400~470MHz

    25W / 8W

    5.5A / 2.0A @12V

    14.5×10.9×4.1cm

    GD150BS

    136~174MHz

    10W / 1.5W

    1.8A / 0.7A @12V

    12.5×7.6×3.4cm

    GD150VS

    136~174MHz

    25W / 8W

    5.0A / 1.8A @12V

    14.5×10.9×4.1cm



    General

    _Frequency Range

    _Refer to (FORM 1)

    _Channel Capacity

    _60

    _Channel Spacing

    _25KHz

    _Frequency Stability

    _±2.0ppm (-40 - +70)

    _Operating Voltage

    _DC 11V to 14V ( Typical 12V )

    _Current Drain

    _Standby:  <80mA

    _Receive:  <100mA

    _Dormancy: <3mA

    _Transmit : Refer to (FORM 1)

    _Antenna Impedance

    _50 ohm unbalanced

    _Dimensions (WxHxD)

    _Refer to (FORM 1)

    _Operating Temperature

    _-40 - +70


    Receiver

    _Type of Receiver

    _Double, super heterodyne

    _Intermediate Freq

    _45MHz(1st IF), 455KHz)2nd IF)

    _Sensitivity

    _0.2 μV @12dB SINAD

    _Squelch Sensitivity

    _0.25uV

    _Adjacent Channel Selectivity

    _greater than –70dB

    _Spurious and Image Rejection

    _greater than –70dB

    _Intermodulation

    _65dB

    _Output Audio Distortion

    _3% at 1KHz for ±3KHz deviation


    Transmitter

    _RF Output Power

    _Refer to (FORM 1)

    _25W, 20W, 15W, 10W and 5W, programmable for 25W

    _10W, 7.5W, 5W, 2.5W and 1W, programmable for 10W

    _8W, 6W, 4W, 2W and 1W, programmable for 10W

    _1.5W, 1W, 0.6W, 0.3W and 0.1W, programmable for 1.5W

    _Maximum Frequency Deviation

    _±5KHz

    _Output  Harmonic

    _less than –65dB

    _Spurious Emissions

    _less than 0.25uW (30MHz to 1GHz)

    _Distortion

    _≤2.5

    _Dormancy Awake Time

    _<150ms


    Data and Interface

    _Modulation

    _MSK

    _Air Rate

    _4800, 2400 and 1200, programmable

    _Interface Baud Rate

    _300-38400bps programmable

    _Interface Data Bit

    _8 or 7 bits programmable

    _Interface Parity Bit

    _None / Even / Odd programmable

    _Interface Stop Bit

    _1 bit or 2 bits programmable


    Serial Port Utility is a free communication software for serial port. Serialport Utility makes it more efficient for development of hardware-software application. It can send and receive data in high speed. Data can be viewed in Text, Hex and decimal format. Data can be sent automatically with flexible auto sending rules.


    Configuration

    1. Power Cord

    2. 232 Interface cables (For RS-232 interface radio modem) or

    __485 Interface cables (For RS-485 interface radio modem)


    Options

    1. Antennas

    2. RF Cables

    3. Power Supply

    4. Coaxial Lightning Arrestor

    5. Handset

    6. Programmer

    7. Interface Adapter