Modular Portable Antenna System
A complete field antenna system that lets one operator reconfigure the same controlled components for vertical, wire, and NVIS deployment objectives.
One field system. Many operating objectives.
Carry a complete HF antenna platform into the places fixed antennas cannot go
The CHA MPAS 2.0 is built for operators who want one rugged, man-packable antenna system that can change with the mission. From a fast vertical at a roadside stop to a 73-foot wire at camp, the same core kit can be rearranged for local, regional, NVIS, and longer-distance HF communication.
Its modular approach combines a HYBRID MICRO or HYBRID MINI matching unit, antenna and counterpoise wires, MIL 2.0 whip, MIL EXT 2.0, Spike Mount, choked coax, hardware, and sling bag. With a suitable wide-range tuner or coupler, the documented configurations cover 1.8 through 54 MHz and give one operator a practical continuum between speed, portability, height, and field performance.
That makes the MPAS 2.0 especially compelling for POTA, camping, overland travel, emergency preparedness, NGO or government field work, and any station where effective HF communications must pack down, move quickly, and adapt to the available site.
Quick product reference
Key Specifications
- 73 ft wire frequency coverage
- 1.8-54.0 MHz continuous, including 160 through 6 meters; HYBRID MICRO or MINI and tuner/coupler required
- MIL 2.0 frequency coverage
- 1.8-54.0 MHz with HYBRID MICRO or MINI and tuner/coupler; limited performance below 7 MHz
- MIL 2.0 + MIL EXT 2.0 coverage
- 1.8-54.0 MHz with HYBRID MICRO or MINI and tuner/coupler
- HYBRID MICRO power
- 100 W SSB Phone; 25 W all other modes, Intermittent Commercial and Amateur Service (ICAS)
- HYBRID MINI power
- 500 W SSB Phone; 100 W all other modes (ICAS)
- Power warning
- Prolonged transmissions or exceeding the published power limits may damage antenna components
- Documented configurations
- Manpack Vertical
- Portable Vertical
- Horizontal NVIS
- Sloping Wire
- End-Fed Inverted L
- End-Fed Inverted V
- RF connection
- UHF plug (PL-259)
- Antenna wire length
- 73 ft (22.25 m)
- Counterpoise wire
- 25 ft (7.62 m), used only in the documented unbalanced configurations
- MIL 2.0 length
- 9 ft 4 3/4 in (2.86 m) extended; 17 in (43.2 cm) collapsed
- MIL EXT 2.0 length
- 8 ft 9 in (2.67 m) extended; 28 3/4 in (73.0 cm) collapsed
- MIL 2.0 + MIL EXT 2.0 length
- 18 ft 1 3/4 in (5.53 m) extended
- HYBRID MICRO weight
- 1 lb (0.45 kg)
- HYBRID MINI weight
- 1.5 lb (0.68 kg)
- MIL 2.0 whip weight
- 12 oz (0.34 kg)
- MIL 2.0 + MIL EXT 2.0 weight
- 1 lb 12 oz (0.79 kg)
- Complete system weight
- 8 lb 12 oz (3.97 kg), all components
- Personnel and setup
- One operator; under 15 minutes for wire configurations and under 5 minutes for vertical configurations
- SWR
- Frequency- and configuration-dependent; designed to remain within the range of most wide-range antenna tuners or couplers
- Environmental protection
- Described by the official user guide as totally waterproof; clean, dry, inspect, and protect joints as directed after field use
- External tuner
- Required for every documented MPAS 2.0 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
A good field antenna earns its place in the vehicle or pack by solving more than one deployment problem.
- What’s included
- 1 X CHA HYBRID-MICRO or Hybrid MINI Unit
- 1 X 73’ Wire Tinned Copper KEVLAR PTFE (Teflon) (-70°C to 150°C) wire
- 1 X 25’ Wire Tinned Copper KEVLAR PTFE (Teflon) (-70°C to 150°C) wire
- 1 X CHA MIL 2.0 (113" Long)
- 1 X CHA MIL EXT 2.0 (105.5" Long)
- 1 X CHA SPIKE MOUNT
- 1 X CHA 50’ Coax with RFI Choke
- 1 X SLING BAG ( Dimensions: 30" x 6" X 2")
- What else you need
- A wide-range antenna tuner or coupler is required for the documented configurations
- 1.8-54.0 MHz continuous, including 160 through 6 meters
- HYBRID MICRO or MINI and tuner/coupler required
- 50 ft. of paracord for use with the wire antenna configurations
- Plastic mallet
- Flashlight
- Limitations
- Prolonged transmissions or operation above the published power limits may damage antenna components
- The shortest configurations have limited performance below 3.5 MHz; CHA MIL 2.0 alone has limited performance below 7 MHz
- Expansion options
- Counterpoise Kit
- Capacity Hat
- Guying System
- Jaw Mount
- Universal Clamp Mount
- Tent Stakes
What an operator can do
- Deploy a compact manpack vertical using the MIL 2.0 and counterpoise wire.
- Build the taller portable vertical with MIL EXT 2.0 for improved lower-frequency performance.
- Configure the 73 ft wire as a horizontal wire, sloper, inverted V, or inverted L.
- Select a lower-angle or higher-angle deployment to suit DX, regional, or NVIS communication goals.
- Change mounts and supporting MPAS READY parts without replacing the complete antenna system.
System design and expansion options
The core system combines the selected HYBRID MICRO or MINI matching unit and antenna base, 73 ft antenna wire, 25 ft counterpoise wire, MIL 2.0 whip, MIL EXT 2.0, CHA SPIKE, coax with an integrated RFI choke and UHF connectors, stainless hardware, and a field sling bag.
Documented high-performance options sold separately include the CHA COUNTERPOISE KIT, CHA CAP HAT, CHA JAW MOUNT, CHA UCM, and CHA UGS. Select accessories for the intended configuration; MPAS READY participation or a shared thread does not make every possible combination automatically approved.
Documented configurations
- Manpack Vertical
- Portable Vertical with MIL 2.0 + MIL EXT 2.0
- Horizontal NVIS
- Sloping Wire
- End-Fed Inverted L
- End-Fed Inverted V
Site, height, orientation, ground conditions, operating frequency, and tuner range determine actual results.
Variant and operating requirements
- Select the HYBRID MICRO or HYBRID MINI according to the required power class.
- Every documented MPAS 2.0 configuration requires a suitable wide-range antenna tuner or coupler.
- The MIL 2.0-only vertical is usable across the documented range but has limited performance below 7 MHz.
- Use the counterpoise with vertical and unbalanced wire configurations as directed by the guide.
- Use appropriate mast support and guying for the selected vertical or wire deployment.
- Expected SWR depends on frequency, configuration, site, and ground conditions; verify the completed deployment before transmitting.
Package contents
- 1 x selected CHA HYBRID MICRO or MINI unit
- 1 x 73 ft tinned-copper Kevlar/PTFE antenna wire
- 1 x 25 ft tinned-copper Kevlar/PTFE counterpoise wire
- 1 x CHA MIL 2.0
- 1 x CHA MIL EXT 2.0
- 1 x CHA Spike Mount
- 1 x 50 ft coax with integrated RFI choke
- 1 x sling bag
- Stainless-steel 3/8-24 hardware
Deployment and maintenance
- The official guide describes the MPAS 2.0 as totally waterproof; after field use, clean and dry the components and inspect them for wear.
- Keep all joints clean and hand-tight; do not force 3/8-24 connections.
- Protect bare MIL EXT aluminum joints from corrosion with the guide-recommended anti-oxidant maintenance.
- Collapse the MIL 2.0 from the top as directed by the guide to protect its internal connecting cord.
- Verify SWR after every configuration or site change.
- This consumer product is not the ruggedized military MPAS version.
