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The rugged MOTOTRBO DEM 300 and DEM 400 radio repeater are available as analog/digital mobile radios that offer all the benefits of the latest technology – from superior audio to greater coverage. These affordable performers are compatible with advanced MOTOTRBO features you'll find are business-essential , for example a transmission can be interrupted to prioritize critical communications.
With its bright, high contrast alphanumeric screen, the DEM 400 handheld radio allows drivers to see important information such as caller ID at a glance. The DEM 300 offers lower capacity and a simpler numeric display.
The DEM 300 and DEM 400 walkie talkie are so easy to use and deliver such clear voice communications, you'll be amazed how efficient your operation can be.
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General |
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VHF |
UHF Band 1 |
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Channel Capacity |
64 |
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Typical RF Output
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Low Power |
1-25 W |
1-25 W |
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High Power |
25-45 W |
25-40 W |
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Frequency |
136-174 MHz |
403-470 MHz |
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Dimensions (H x W x L) |
1.7 x 6.7 x 5.3 in (44 x 169 x 134 mm) |
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Weight |
2.9 lbs (1.3 kg) |
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Current Drain
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Standby |
0.81 A max |
0.81 A max |
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Rx @ Rated Audio |
2 A max |
2 A max |
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Transmit |
1-25 W: 11.0 A max 25-45 W: 14.5 A max |
1-25 W: 11.0 A max 25-45 W: 14.5 A max |
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FCC Description |
1-25 W: ABZ99FT3090 25-45 W: ABZ99FT3091 |
1-25 W: ABZ99FT4092 25-45 W: ABZ99FT4093 |
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IC Description |
1-25 W: 109AB-99FT3090 25-45 W: 109AB-99FT3091 |
1-25 W: 109AB-99FT4092 25-45 W: 109AB-99FT4093 |
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Receiver |
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VHF |
UHF |
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Frequency |
136-174 MHz |
403-470 MHz |
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Channel Spacing |
12.5 kHz / 25 kHz |
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Frequency Stability (-30°C, +60°C, +25°C Ref) |
± 0.5 ppm |
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Analog Sensitivity (12dB SINAD) |
0.3uV , 0.22uV (typical) |
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Digital Sensitivity (5% BER) |
0.25 uV ,0.19 uV (typical) |
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Intermodulation (TIA603D) |
75 dB |
70 dB |
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Adjacent Channel Selectivity (TIA603D) |
50 dB @ 12.5 kHz 75 dB @ 25 kHz |
50 dB @ 12.5 kHz 75 dB @ 25 kHz |
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Spurious Rejection (TIA603D) |
75 dB |
70 dB |
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Rated Audio |
4 W (Internal) 7.5 W (External - 8 ohms) 13 W (External - 4 ohms) |
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Audio Distortion @ Rated Audio |
3% (typical) |
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Hum and Noise |
-40 dB @ 12.5 kHz / -45 dB @ 25 kHz |
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Audio Response |
TIA603D |
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Conducted Spurious Emissions (TIA603D) |
-57 dBm |
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Transmitter |
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VHF |
UHF |
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Frequency |
136-174 MHz |
403-470 MHz |
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Channel Spacing |
12.5 kHz / 25 kHz |
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Frequency Stability (-30°C, +60°C, +25°C Ref) |
± 0.5 ppm |
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Low Power Output |
1-25 W |
1-25 W |
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High Power Output |
25-45 W |
25-40 W |
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Modulation Limiting |
± 2.5 kHz @ 12.5 kHz |
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± 5.0 kHz @ 25 kHz |
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FM Hum and Noise |
-40 dB @ 12.5 kHz |
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-45 dB@ 25 kHz |
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Conducted / Radiated Emission |
-36 dBm < 1 GHz |
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-30 dBm > 1 GHz |
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Adjacent Channel Power |
60 dB @ 12.5 kHz |
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70 dB @ 25 kHz |
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Audio Response |
TIA603D |
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Audio Distortion |
3% |
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FM Modulation |
12.5 kHz: 11K0F3E / 25 kHz*: 16K0F3E |
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4FSK Digital Modulation
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12.5 kHz Data: 7K60F1D and 7K60FXD 12.5 kHz Voice: 7K60F1E and 7K60FXE Combination of 12.5 kHz Voice and Data: 7K60F1W |
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Digital Vocoder Type |
AMBE +2™ |
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Digital Protocol |
ETSI TS 102 361-1, -2, -3 |
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Environmental Specifications |
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Operating Temperature |
-30 ℃ ~ +60 ℃ |
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Storage Temperature |
-40 ℃ ~ +85 ℃ |
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Thermal Shock |
Per MIL-STD |
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Humidity |
Per MIL-STD |
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ESD |
IEC 61000-4-2 （level 3 ） |
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Dust & Water Intrusion |
IP54, MIL-STD |
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Packaging Test |
Per MIL-STD |
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Main Product:
walkie talkie,
two way radio,
handheld radio,
radio repeater,
mobile Radio,
portable radio
