Comet CFX-324B High-Power Triplexer / 2 M-220 MHz-70 cm Combiner-Splitter, 1.3-150 MHz & 200-320 MHz & 390-500 MHz, 600 W, 40 dB Isolation

The Comet CFX-324B Triplexer is a precision-engineered RF device built to combine or split signals across three distinct frequency ranges with very high performance. Designed for serious device enthusiasts and professionals who operate on 2 m (VHF), 220 MHz, and 70 cm (UHF), this triplexer enables efficient and effective sharing of a single antenna or common feed line across multiple devices or multiple antennas. It supports HF/VHF (1.3–150 MHz), mid-band (200–320 MHz), and high-band (390–500 MHz), thanks to its internal band-pass filters that deliver clean signal paths in both directions. One of the standout features of the CFX-324B is its extremely low insertion loss: only 0.20 dB in the low-pass (1.3–150 MHz), 0.25 dB in the mid-pass (200–320 MHz), and 0.30 dB in the high-pass (390–500 MHz). This means very little of your transmit power or received signal is lost through the triplexer, making it highly efficient for demanding RF systems. In addition, the triplexer supports a peak envelope power (PEP) of up to 600 W on all three bands, so it can handle high-power transmitters or repeater-level setups without compromise. Isolation is critical when combining or splitting signals, and the CFX-324B delivers a minimum of 40 dB isolation between each band port, which helps prevent signal bleed, cross-talk, or intermodulation — critical in multi-device or multi-band applications. The connector design is practical and widely compatible: a common SO-239 female port serves as the shared feed, while the low, mid, and high band ports are each terminated with PL-259 male leads. This configuration makes installation simple in typical coaxial cabling systems found in amateur and professional device setups. Built to be rugged and reliable in a variety of device environments, the CFX-324B is compact enough to be mounted in a shack, at a tower base, or other RF infrastructure locations. Whether your goal is to combine three separate devices onto a single antenna, or split a single device's output across three antennas, this triplexer gives you that flexibility without sacrificing performance. It’s designed for long-term use and backed by Comet / NatComm Group’s quality manufacturing. With its strong power handling, excellent isolation, and low-loss filtering, the CFX-324B is a top-tier choice for operators who require clean, efficient, and reliable RF signal management across multiple bands.

• Combines or splits three frequency bands — HF/VHF (1.3-150 MHz), 2 M/220 MHz (200-320 MHz), and UHF (390-500 MHz) — making it ideal for multiband installations
• Maintains very low insertion loss: only 0.20 dB on the low-pass path, 0.25 dB on the mid-pass, and 0.30 dB on the high-pass, preserving signal strength
• Rated for high power operation — supports up to 600 W PEP on all three bands, making it suitable for serious base-station, repeater, or combined-transmitter use
• Provides excellent isolation of at least 40 dB between each of the three ports, minimizing cross-modulation and interference between devices
• Uses standard connectors — SO-239 for the common port and PL-259 leads for all three band ports — for straightforward integration into most coaxial systems