CHA SINGLE-EXT SHORT

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Compact 13.5 Inch MPAS READY Extension Sections A modular extension sold in matched two- or four-section kits for documented configurations that need shorter height increments than the standard 27 in SINGLE EXT. Fine control for modular builds Add the height you need without adding a full-size extension The CHA SINGLE-EXT SHORT gives system builders a precise 13.5-inch increment for documented MPAS READY configurations. It is a small component with a valuable job: helping an operator tune radiator geometry, coil position, or isolated feedpoint height without carrying a longer section than the build requires. Use matched sections in the position defined by the completed antenna guide. Depending on that position, the extension may become part of the RF radiator or may serve only as an isolated center riser - a distinction that protects tuning, symmetry, and safe deployment. Quick product reference Key Specifications Product type Modular MPAS READY extension section Length 13.5 in (34.3 cm) per section Kit options 2 sections 4 sections Interface 3/8-24 male and female Material Anodized aluminum with stainless-steel hardware Weight Approximately 0.4 lb (0.18 kg) per section Electrical role Configuration-dependent: active radiator when in the RF path Mechanical role Center riser only when below a documented isolated feedpoint or insulator Frequency / power Determined by the completed documented antenna configuration Operator decision support Plan the complete setup See what this product is best suited for, what the documented setup needs, and the boundaries to confirm before deployment. Best for The difference between a packed component and a working radiator is knowing exactly where that component belongs in the RF system. What’s included 2 × CHA SINGLE EXT SHORT What else you need Combine it with the specified base, loading, feedpoint, mount, support, and radial or counterpoise system. Compatible with 3/8-24 male and female Limitations Tighten outer Nut (J) until snug (do not overtighten) using a 3/8 in. Do not tighten or loosen the inner nut. Tighten outer nut until snug (do not overtighten) using a 3/8 in. Do not cut the Tail Wire until you are sure you have it tuned correctly. Expansion options CHA CFM-16 CHA CFM-34 HD CHA SPIKE MOUNT Field Guide HOA Guide Official product documents 80_SHORT_EXT_User_Guide_260616.pdf Official short-extension user guide with assembly, configuration, and operating information. Open documentOpen product handbook What an operator can do Add controlled 13.5 in increments below or above an MCC 2.0 where the verified configuration calls for an electrical radiator extension. Raise an approved feedpoint or center assembly when the extension is on the mechanically supporting, electrically isolated side of that assembly. Pack shorter extension sections in compact POTA, SOTA, EMCOMM, HOA, and travel kits. Use two or four matched sections according to the selected product variant and completed antenna design. Electrical radiator versus mechanical support Electrical radiator: when the section is directly in the conductive RF path, it changes radiator length and tuning. Mechanical riser: when installed below an approved isolated feedpoint or insulator, it can raise the assembly without becoming a dipole leg. Do not assume compatibility from the thread alone. A 3/8-24 connection confirms physical fit only. The completed antenna guide determines electrical role, symmetry, loading, support, and tuning.Documented-use guardrails With MCC 2.0 vertical configurations, confirm the extension position, radiator, radial system, and tuning procedure in the completed-system guide. For V-DIPOLE support, the extension belongs below the isolated dipole feedpoint as a center riser. It is not an instruction to lengthen one dipole leg. Never add radial or counterpoise accessories to a dipole configuration. Do not use an extension as a mast or structural adapter unless the completed configuration explicitly documents that role. Package contents One Kit variant: 2 x CHA SINGLE-EXT SHORT Two Kits variant: 4 x CHA SINGLE-EXT SHORT Show more