Collapsible Electrical Radiator Extension An 8 ft 9.5 in collapsible radiator section that installs below the CHA MIL 2.0 to create an approximately 18 ft 2 in documented MPAS vertical radiator. More radiator when lower bands matter Unfold a taller MPAS vertical from a packable field component The CHA MIL EXT 2.0 nearly doubles the deployed length of the CHA MIL 2.0 while retaining the collapsible, field-ready format that portable operators expect. That added electrical length gives a documented MPAS vertical more useful lower-frequency capability without committing to a permanent mast. It installs below the MIL 2.0 as an active part of the radiator, not as a general-purpose support. Combined with the correct HYBRID matching unit, mount, counterpoise, coax, and tuner, it creates an approximately 18-foot vertical for camping, POTA, emergency communications, and rapidly relocatable stations. Quick product reference Key Specifications Product type Collapsible electrical radiator extension Extended length 105.5 in / 8 ft 9.5 in (2.68 m) Collapsed length Approximately 28.1 in (71.4 cm) Combined with MIL 2.0 Approximately 18 ft 2 in (5.54 m) radiator Sections 4 aluminum sections Diameter Approximately 0.75 in (1.9 cm) Weight Approximately 1 lb (0.45 kg) Interface 3/8-24 Documented frequency use 12-54 MHz with MIL and tuner; 1.8-54 MHz with MIL, HYBRID MICRO/MINI, and tuner System role Electrically active radiator—not a general-purpose mast 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 Modular field systems become valuable when one carefully chosen section can change what the complete antenna is able to do. What’s included MIL 2.0 Whip Extension What else you need Combine it with the specified base, loading, feedpoint, mount, support, and radial or counterpoise system. Compatible with 3/8-24 Official product documents CHA_MIL_EXT_2_fly_sheet.pdf Official MIL EXT 2.0 product sheet with installation, compatibility, and field-use information. Open documentOpen product handbook What an operator can do Increase the electrical and physical length of the CHA MIL 2.0 for improved lower-frequency performance. Build the documented MPAS 2.0 portable vertical using a HYBRID MICRO or MINI, MIL EXT 2.0, MIL 2.0, mount, counterpoise, and external tuner. Collapse four field sections into a compact transport length for man-pack and go-kit use. Correct position in the system Approved mount and counterpoise system. CHA HYBRID MICRO or MINI matching transformer/base. CHA MIL EXT 2.0. CHA MIL 2.0 whip above the extension. Coax and a suitable wide-range external antenna tuner. Role: The MIL EXT 2.0 is part of the RF radiator. It is not a general-purpose mast, isolated support, or approval for every product that shares a 3/8-24 thread.Deployment and maintenance Use a suitable external tuner as required by the documented broadband configuration. For short wet deployments, seal each joint with quality electrical tape and remove it after use. For longer installations, apply a suitable aluminum anti-oxidant compound to clean joints and weather-seal them. Do not exceed the structural limits of the selected mount, mast support, guying system, or connected radiator. Package contents 1 x CHA MIL EXT 2.0 collapsible extension CHA MIL 2.0, HYBRID base, mount, counterpoise/radials, coax, and tuner are sold separately unless included in a complete system.
