TJ231 VHF Cavity Combiner

TJ231 Product
Enhancement

Triple-stage isolator with 150 kHz spacing and 19" rack-mount for easy integration.
ITS150A

Next Generation
Monitoring Arrives
Q3–Q4 2026

Conventional, Smart or Scalable. Monitoring Built Around Your Needs!
Control station combiner, Supporting 700/800 MHz

CSL400
COMING 2026!

Channelized RF System Monitoring

IntelliSENSE™
Power Monitoring
System

24/7 Smart Power Monitoring Sytem!

Sinclair Solutions

Customizable mobile radio products and services.

Sinclair Technologies specializes in innovative wireless communication solutions trusted across the industry. Our portfolio includes over 3,000 products—from advanced antennas and filters to a wide range of accessories—covering key frequency bands such as 800 MHz, UHF, VHF, TETRA, and 5G. We also offer customized solutions, including Low PIM antennas and PIM hardened filters, to ensure high reliability performance in demanding enviroments. Discover how Sinclair can elevate your wireless systems—contact us today to learn more.

PRODUCT TEASER - COMING 2026!

ITS150A (Next Generation Monitoring Arrives Q3–Q4 2026)

Conventional, Smart or Scalable. Monitoring built around your needs! ITS150A is a rugged RF monitoring sensor designed for mission-critical environments where performance, security, and reliability are essential. It delivers continuous, real-time VSWR monitoring using hardware-based fault detection—eliminating inaccuracies associated with legacy analog sensors and removing the need for voltage scaling or external controllers. Internal RF logic compares forward and reflected power and triggers latching alarms at predefined thresholds via two independent dry contact relays, ensuring seamless integration with digital telemetry systems. Fully sealed and configuration-free, the ITS150A features no IP stack, USB, GUI, or network interfaces, providing a zero-attack-surface design aligned with NIST and IEC 62443 cybersecurity best practices. Built with low-PIM, high-quality RF components and durable 3.4-10 connectors, it offers predictable, certifiable performance for public safety, defense, and critical communications applications.

FEATURED PRODUCT

TJ231 Enhancement (4-channel shown)

The TJ231(x)B-(y) Series is a high-performance VHF cavity-ferrite transmitter combiner designed for 132-174 MHz systems, available in 2 to 5 channel configurations as a standalone. Additional options are available when used in system designs. It incorporates low-loss triple-stage isolators and high-Q 1/4 wave bandpass cavity filters, enabling minimum Tx-Tx spacings of 150 kHz. With its 19-inch rack-mountable design, the TJ231(x)B-(y) Series ensures efficient frequency management and superior isolation, making it wellsuited for aviation, low-band, and VHF applications.

  • Triple stage isolator with outstanding isolation and bandwidth.
  • Allows for minimum Tx-Tx spacings of 150 kHz.
  • Uses high 'Q' 1/4 wave bandpass cavity filters.
  • 19-inch rack-mountable for seamless integration into existing systems.

PRODUCT SPOTLIGHT

SINCLAIRS SC COLLINEAR ANTENNA SERIES

The SC201, SC213, and SC2340 are a rugged family of omnidirectional antennas engineered for reliable VHF and multi-band LMR performance in demanding environments. Designed for aviation, public safety, and land mobile radio applications, the series spans solutions from wideband, low-profile VHF coverage with the SC201, to higher-gain VHF performance with the SC213, and ultra-wideband tri-band coverage with the SC2340 supporting VHF, UHF, and 700/800/900 MHz systems. Built with high-quality materials, fiberglass radomes, and integrated mounting hardware, all SC collinear antennas deliver consistent radiation patterns, low wind loading, and long-term durability in extreme wind, ice, and corrosive conditions—making them a trusted choice for critical communications infrastructure.

PRODUCT SPOTLIGHT

SI500 Low Profile Ceiling Mount MIMO 5G DAS Antenna

The SI500A DAS antenna series is a compact and unobtrusive solution designed for boosting wireless coverage within buildings. Operating over an ultra-wide frequency range of 617 MHz to 8500 MHz, it supports a multitude of wireless communications, including 5G networks, legacy systems, Wi-Fi 6E & 7, future 5G bands, and IoT systems, ensuring uninterrupted indoor connectivity.

  • Future-proof ultra-wideband indoor omni antenna.
  • Low-profile radome minimizes aesthetic impact.
  • Superior VSWR across the band for top performance.
  • Dual port with outstanding isolation for MIMO and increased throughput.
  • Public-safety grade design compliant with NFPA safety codes.