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Uniden
UM725GBT — fixed mount radios from Uniden.
Technical
| Frequency Range | Transmitter 156.025-161.600MHz / Receiver 156.050-163.275MHz |
|---|---|
| Display | Full Dot Matrix LCD With Amber & White Cooler Back Light |
| Size (W/O Heatsink & Knobs) | H:3.38 x W:5.94 x 2.50 Inch (H:85.7 x W:150.7 x L:63.5mm) |
| Weight | Approx. 35.3oz (1kg) With Mic |
| Power Supply Voltage | 13.8V (10.5V - 16V) Negative Ground Only |
| Antenna Impedance | 50 Ω |
| Microphone | Electret Type |
| Speaker | 4Ω 4W (Radio) / 0.5W (Sp Mic) |
| Water Protect Class | IPx8 |
| Operating Temp. range | 5°F to 131°F (-15°C to +55°C) |
| Storage Temp. range | -22°F to 140°F (-30°C to +60°C) |
| Transmitter Frequency Tolerance @ 25°C | ±2.5ppm Max. |
| Transmitter Power Output | Hi 25W / Lo 1W |
| Transmitter Spurious Emission | Hi Power -45dBm / Low Power -55dBm |
| Modulation Frequency Response | -6dB @500Hz, +6.5dB@2KHz (1KHz ±1.0KHz Dev. Ref) |
| Microphone Sensitivity For ±3kHz Dev. | 6mV |
| Hum & Noise Ratio (300Hz, 3000Hz Bpf 750us Deem.) | 45dB |
| Modulation Distortion 750us Deemphasis | 0.6% (0.3KHz to 3KHz B.P.H @±3.0KHz Deviation) |
| Transmitter Current Drain @ High Power | 4.6A Nominal 6A Max @13.8V DC |
| Receiver Sensitivity for 20dB SINAD [Main] With CCITT | 0.27uV |
| Squelch Sensitivity [Main] | Threshold 0.2uV / Tight 0.5uV |
| Audio Frequency Response 1KHz Reference | +6.5dB @500Hz, -6.5dB@2KHz |
| Adjacent Channel Selectivity | 76dB @±25KHz |
| Inter Modulation Immunity | 70dB |
| 1st & 2nd Image Rejection | 80dB |
| 1st & 2nd IF Rejection | 85dB |
| Receiver Hum & Noise Ratio | 45dB |
| Audio Output Power @ 10% Distortion | 2W Internal / 2.2W External Speaker |
| Receiver Current Drain @No Signal | 500mA MAX @No Signal / 1.2A MAX at Maximum Audio Output |
| Battery Voltage Alert | Low 10V / High 17V |
| GPS Acquisition Sensitivity CN | 40dB (@GPS anechoic box input -103dBm) |
| GPS Acquisition Time | 30sec. (@GPS anechoic box input -103dBm) Limit 90sec. |
| GPS External Antenna Connector | 3.3V / 20mA MAX |
| Bluetooth Sensitivity (Ber≤10-e5) | -90dBm (BT anechoic box input -60dBm, 1 Mbps BLE) |
Overview
UM725GBT — fixed mount radios from Uniden.
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