Introducing the TEJ-RF-001: High-Selectivity RF Filtering for Demanding Installations
Topics: #Tejtronics, #RFEngineering, #MadeInIndia, #CavityFilter, #WirelessCommunication, #DefenseTechnology, #GlobalInnovation, #Duplexer, #AtmanirbharBharat
Tejronics Duplexer/Cavity Filter - Designed for cleaner, more reliable RF performance
In RF communication, receiver sensitivity depends on more than transmitter performance . It also depends on how effectively the system rejects unwanted signals while preserving the signal that matters. Afterall a repeater can only transmit what it receives. Today, we are pleased to introduce the Tejtronics TEJ RF 001 Cavity Filter—a high Q RF filter engineered to deliver strong adjacent channel rejection and improved receiver selectivity in demanding RF environments. Designed for cleaner, more reliable RF performance Congested spectrum, nearby high power transmitters and out of band interference can significantly affect receiver performance. The TEJ RF 001 provides the selectivity needed to help RF systems operate more reliably in these challenging conditions. Its four cylinder architecture incorporates: Two cylinders dedicated to the passband Two cylinders dedicated to the stopband A built in high voltage capacitor for tuning each cylinder Performance that speaks for itself The TEJ RF 001 delivers: 400 W maximum input power in the FM passband Less than 1.1 dB passband insertion loss Greater than 63 dB stopband rejection 1.35:1 input VSWR 50 ohm system impedance Broad 100–300 MHz frequency coverage Its four cylinder architecture uses two cylinders in the passband and two in the stopband, supported by a built in high voltage tuning capacitor.This is not just a mechanical assembly. It is a purpose built RF platform designed to preserve wanted signals and strongly suppress unwanted energy. How does it compare internationally? Established names such as Sinclair and Telewave have built their reputations on dependable RF cavity and duplexer systems.On key published parameters, the TEJ RF 001 belongs in that performance conversation.Comparable four cavity VHF duplexers from Sinclair and Telewave commonly specify 350 W power handling, insertion loss between approximately 1.0 and 1.5 dB, and VSWR of up to 1.5:1. The TEJ RF 001 delivers 400 W power handling, insertion loss below 1.1 dB, and a 1.35:1 VSWR—all while offering published tuning coverage from 100 MHz to 300 MHz. Duplexer isolation and cavity filter stopband rejection are different measurements and should not be treated as directly interchangeable. But the headline engineering benchmarks are clear: Tejtronics is building RF hardware at a level that can stand alongside established international products. Recommended by LinkedIn Amateur Radio for the RF Enthusiast Amateur Radio for the RF Enthusiast Shiv Prasad Tripathy 6 years ago Phase Matched RF&Microwave Cable Assemblies Phase Matched RF&Microwave Cable Assemblies Cathy Liu 9 months ago RF Budget in Design RF Budget in Design Shiv Prasad Tripathy 6 years ago Engineered for real world deployment Strong RF performance needs equally strong mechanical engineering. The TEJ RF 001 is manufactured from aerospace grade 6061 aluminium and features: A mirror finished, chemically treated interior for improved conduction A high temperature powder coated exterior Integrated handles for easier transportation and installation SO 239 connectivity A practical 7 kg construction 2 patent pending technology that has made it possible to make the cylinders so compact. Every detail has been considered with field deployment in mind—from electrical conductivity and thermal durability to transportation and installation. More than import substitution The TEJ RF 001 represents something bigger than a new product launch. It demonstrates what indigenous RF engineering can achieve when performance, manufacturing and application knowledge come together. Tejtronics is not simply developing an Indian alternative. We are creating international class RF products in India—ready to be evaluated, specified and deployed across global markets. The next chapter of RF innovation will not be defined only by where technology has traditionally come from. It will be defined by who can solve demanding engineering problems with performance, reliability and purpose. Tejtronics is ready to be part of that chapter. And did mention we are turning 1 soon? Discover the product and speak with our team about your application: https://www.tejtronics.com/product/TEJ RF 001 Designed in India. Engineered for the world. Tejtronics RFEngineering MadeInIndia CavityFilter WirelessCommunication DefenseTechnology GlobalInnovation Duplexer
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