ST 2440 UHF Band Reject Duplexer
ST 2440 UHF Duplexer 50W is a professional-grade, notch-type mobile duplexer designed for high-density RF environments. Engineered for reliability, it allows for simultaneous transmission and reception on a single antenna with minimal interference. Ideal for use with Motorola SLR series repeaters, this unit ensures your communication network remains stable and crystal clear.
Features
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Compact Form Factor: Low-profile design (32mm height) makes it ideal for space-constrained mobile installations or compact rack setups.
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High Power Handling: Supports a continuous duty cycle of up to 50 Watts, suitable for most commercial and public safety mobile radios.
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Superior Isolation: Offers 75 dB of isolation to prevent receiver desensitization from the transmitter.
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Broad Frequency Range: Operates across the full 400 – 520 MHz UHF band with precise tuning capabilities.
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Rugged Durability: Built to withstand harsh environments with an operating temperature range of -25°C to +60°C.
Specifications
| Parameter | Specification |
| Frequency Range | 400 – 520 MHz |
| Frequency Separation | 5 MHz / 10 MHz |
| Power Rating | 50 Watts |
| Insertion Loss | 1.2 dB |
| Isolation | 75 dB |
| Return Loss | 18 dB |
| Nominal Impedance | 50 ohm |
| Connectors | N-Female |
| Dimensions (HxWxD) | 32 x 155 x 220 mm |
| Weight | Approx. 1.20 kg |
Applications
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Mobile Command Centers: Reliable signal routing for emergency response vehicles.
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Fixed Base Stations: Cost-effective duplexing for small-scale repeaters.
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Industrial Communication: Robust RF management for warehouse and manufacturing radio networks.
Why Buy from Soyuztec Trading LLC?
As a Silver Partner of Motorola Solutions and the Exclusive Distributor of Times Microwave Systems in the MENA region, Soyuztec provides more than just hardware.
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Expert Tuning: Our technical team provides precision frequency tuning services before dispatch to ensure “plug-and-play” installation.
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System Integration: We offer end-to-end solutions, including LMR-400/600 cabling, connectors, and antenna mounting.
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Local Support: Based in Dubai, we provide rapid delivery across the UAE and GCC with 24/7 technical assistance.
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Regulatory Compliance: We can assist with TDRA licensing for your radio frequency requirements.


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