Chameleon Antenna CHA MPAS Operator'S Manual Download

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HF Modular Portable

Antenna System

(CHA MPAS)

Operator’s Manual

California - USA

WWW.CHAMELEONANTENNA.COM

VERSATILE – DEPENDABLE – STEALTH – BUILT TO LAST

Summary of Contents for CHA MPAS

Page 1: ...HF Modular Portable Antenna System CHA MPAS Operator s Manual California USA WWW CHAMELEONANTENNA COM VERSATILE DEPENDABLE STEALTH BUILT TO LAST...

Page 2: ...CHA HYBRID MINI MICRO Page 2...

Page 3: ...ssories 22 Chameleon AntennaTM Products 23 References 24 Be aware of overhead power lines when you are deploying the CHA MPAS antenna system You could be electrocuted if the antenna gets near or conta...

Page 4: ...equire communication gear to be both effective and highly portable The CHA MPAS is configurable to facilitate Near Vertical Incident Sky wave NVIS communication and is totally waterproof The CHA MPAS...

Page 5: ...munications are lost due to ionospheric loses The OWF which is somewhere between the LUF and around 80 of the MUF is the range of frequencies which can be used for reliable communication If the LUF is...

Page 6: ...abiner The Carabiner is a removable pear shaped stainless steel hooks with a spring loaded gate e Line Winder The Line Winder is used to store the Antenna Wire b It enables rapid deployment and recove...

Page 7: ...le decide which distance column Ground 0 to 90 miles Short 0 300 miles Medium 300 1500 miles Long 1500 miles best matches the distance to the station with whom you need to communicate Then determine i...

Page 8: ...t a CHA RFI CHOKE and coaxial cable or the Integrated RF Choke end of the CHA Coaxial Cable assembly to the UHF Socket g on the Hybrid Micro Base Raise the Antenna 5 Extend the CHA MIL WHIP by unfoldi...

Page 9: ...table Vertical Site Selection and Preparation 1 Select a site to deploy the CHA MPAS Portable Vertical configuration Best ground wave communication occurs when the radio set is located in a clear area...

Page 10: ...e antenna to be raised to a height of 10 12 feet and 60 feet apart A counterpoise wire with a length of 50 to 55 feet is recommended If a counterpoise wire is not used the coaxial cable must be 25 to...

Page 11: ...Turn and two Half Hitches or similar knot 10 Using a Bowline or similar knot tie another long length of Paracord to the Isolation Loop at the end of the Antenna Wire 11 Using a throw weight or some o...

Page 12: ...e Integrated RF Choke end of the CHA Coaxial Cable assembly to the UHF Socket g on the Hybrid Micro Base Raise the Antenna 8 Using a Bowline or similar knot tie a long length 50 feet or more of Paraco...

Page 13: ...plied snugly 8 Connect a CHA RFI CHOKE and coaxial cable or the Integrated RF Choke end of the CHA Coaxial Cable assembly to the UHF Socket g on the Hybrid Micro Base Raise the Antenna 9 Using a throw...

Page 14: ...n and Preparation 1 Select a site to deploy the CHA MPAS Inverted L configuration The site must have two supports that will position the corner of the L and the end of the Antenna Wire around 35 feet...

Page 15: ...e antenna 17 Perform operational test Tilted NVIS The CHA MPAS Tilted NVIS configuration see figure 7 is a broadband short range HF VHF LO antenna This is a special configuration designed to provide g...

Page 16: ...xtended 10 Connect the CHA MIL WHIP to the CHA MIL EXT by carefully screwing it into the top section until finger tight Extend the Counterpoise 11 If not using a vehicle as the counterpoise extend the...

Page 17: ...cations Frequency all configurations require a wide range antenna tuner or coupler o CHA HYBRID MICRO 1 8 MHz through 54 MHz continuous including all Amateur Radio Service bands 160m to 6m o CHA MIL W...

Page 18: ...CHA HYBRID MINI MICRO Page 18 Figure 8 SWR by Frequency Graph Figure 9 Manpack Vertical Far Field Plots 7 MHz left 14 MHz right...

Page 19: ...CHA HYBRID MINI MICRO Page 19 Figure 11 Portable Vertical Far Field Plots 7 MHz left 14 MHz right Figure 12 Tilted NVIS Far Field Plots 3 7 MHz left 7 MHz right...

Page 20: ...CHA HYBRID MINI MICRO Page 20 Figure 13 Horizontal NVIS Far Field Plots 3 7 MHz left 7 MHz right Figure 14 Sloping Wire Far Field Plots 7 MHz left 14 MHz right...

Page 21: ...CHA HYBRID MINI MICRO Page 21 Figure 15 Inverted V Far Field Plots 7 MHz left 14 MHz right Figure 16 Inverted L Far Field Plots 7 MHz left 14 MHz right...

Page 22: ...rbon with special design locking system and double braced legs with an extra wide footprint for added stability This tripod sets up in seconds going from 3 25 ft when fully folded to 10 ft when comple...

Page 23: ...nna base has an integral broadband impedance matching network allowing broadband antenna tuning The CHA HYBRID can be used mobile with the CHA V1L and V2L mobile antennas or stationary with the provid...

Page 24: ...eployment and simplicity of operation is essential The antenna will operate at all frequencies in the 1 8 30 MHz band without any adjustment with most modern internal antenna tuners It is ideal for us...