Roberts Electronics 4000D

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The Roberts Electronics 4000D is a high-performance digital radio receiver designed for use in various applications such as defense, commercial, and industrial environments. Some key features and specifications of the 4000D include:1. Frequency Range: The 4000D operates in the VHF (very high frequency) and UHF (ultra high frequency) bands, covering a frequency range of 30 MHz to 1 GHz.2. Digital Technologies: The receiver employs digital technologies such as direct digital synthesis (DDS), digital signal processing (DSP), and digital hardware filtering for improved accuracy, selectivity, and sensitivity.3. High Sensitivity: The 4000D has a sensitivity of -135 dBm for VHF and -143 dBm for UHF, enabling it to receive weak signals with ease.4. High Selectivity: The receiver has a selectivity of 5 kHz at VHF and 2 kHz at UHF, providing excellent resolution and filtering capabilities to minimize interference.5. Wide Temperature Range: The 4000D can operate over a wide temperature range of -55°C to +125°C, making it ideal for use in harsh environments.6. Small Size: The receiver is compact in size, measuring only 178 mm x 60 mm x 32 mm (7" x 2.3" x 1.25"), making it easy to integrate into various applications.7. Durability: The 4000D is built with high-quality components, ensuring reliable performance and durability in harsh environments.These features make the Roberts Electronics 4000D an excellent choice for a wide range of applications, including military communication systems, public safety communications, commercial communication networks, and industrial wireless control systems.