antenna systems for portable, mountaintop and rover operations
TRANSCRIPT
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Antenna Systems for Portable, Mountaintop and Rover Operations PNWVHFS 2014 Conference
Antenna Systems for Portable, Mountaintop and Rover Operations
Etienne Scott K7ATNDarryl Holman, WW7D
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Antenna Systems for Portable, Mountaintop and Rover Operations PNWVHFS 2014 Conference
Why portable antennas?
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Antenna Systems for Portable, Mountaintop and Rover Operations PNWVHFS 2014 Conference
SOTA!
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Antenna Systems for Portable, Mountaintop and Rover Operations PNWVHFS 2014 Conference
Contesting—portable or rover
(WW7D 2011 ARRL UHF contest)
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Antenna Systems for Portable, Mountaintop and Rover Operations PNWVHFS 2014 Conference
CN88
CN89K7
VE7
Point Roberts, WA extends about 800 feet above 49° longitude (i.e. 49th parallel)
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Antenna Systems for Portable, Mountaintop and Rover Operations PNWVHFS 2014 Conference
CN88
CN89
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Antenna Systems for Portable, Mountaintop and Rover Operations PNWVHFS 2014 Conference
This pile of stuff…
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Antenna Systems for Portable, Mountaintop and Rover Operations PNWVHFS 2014 Conference
• Fits nicely in both vehicles• Covers 4 bands
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Antenna Systems for Portable, Mountaintop and Rover Operations PNWVHFS 2014 Conference
Field Day
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Antenna Systems for Portable, Mountaintop and Rover Operations PNWVHFS 2014 Conference
Grid expeditions
KI7JA (SK) contest expedition
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Antenna Systems for Portable, Mountaintop and Rover Operations PNWVHFS 2014 Conference
Restricted antenna situations (CCR and hotels)
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Antenna Systems for Portable, Mountaintop and Rover Operations PNWVHFS 2014 Conference
Public service and emergency communications
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Antenna Systems for Portable, Mountaintop and Rover Operations PNWVHFS 2014 Conference
Vacation, cruises, camping, etc.
KB5WIA
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Antenna Systems for Portable, Mountaintop and Rover Operations PNWVHFS 2014 Conference
Portable antenna topics (with show and tell)
1. Portable masts
2. Attaching antennas to masts
3. Some antennas ideas for VHF+
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Antenna Systems for Portable, Mountaintop and Rover Operations PNWVHFS 2014 Conference
Portable Masts Crappie fishing pole
Painter extension poles
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Antenna Systems for Portable, Mountaintop and Rover Operations PNWVHFS 2014 Conference
Fiberglass poles: Jackkite flag pole 31’ (~25’ usable) about $75
The Mast Company products
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Antenna Systems for Portable, Mountaintop and Rover Operations PNWVHFS 2014 Conference
Buddypole mast (and the like)
KB5WIA
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Antenna Systems for Portable, Mountaintop and Rover Operations PNWVHFS 2014 Conference
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Antenna Systems for Portable, Mountaintop and Rover Operations PNWVHFS 2014 Conference
Telescoping antenna mast
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Antenna Systems for Portable, Mountaintop and Rover Operations PNWVHFS 2014 Conference
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Antenna Systems for Portable, Mountaintop and Rover Operations PNWVHFS 2014 Conference
Attaching the antenna to the mast
Modified burette clamp
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Antenna Systems for Portable, Mountaintop and Rover Operations PNWVHFS 2014 Conference
Wooster Lock Jaw™ Tool Holder
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Antenna Systems for Portable, Mountaintop and Rover Operations PNWVHFS 2014 Conference
One evening project: 6m “lawn chair halo”
Halos and stacked halos are good omnidirectional, horizontally polarized antennas for 6m - 432 MHz
Ideas for 6 meter antennas
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Antenna Systems for Portable, Mountaintop and Rover Operations PNWVHFS 2014 Conference
Simple 6m directional antennas
The Moxon (2 ele)
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Antenna Systems for Portable, Mountaintop and Rover Operations PNWVHFS 2014 Conference
Simple 6m directional antennasThe Hexbeam (2 ele)
Small turning radius (< 3’)
Contact WW7D for construction information
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Antenna Systems for Portable, Mountaintop and Rover Operations PNWVHFS 2014 Conference
Or…Yagis
KD1RX
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Antenna Systems for Portable, Mountaintop and Rover Operations PNWVHFS 2014 Conference
How about an easy-to-assemble WA5VJB “Cheap Yagi” for 6m?
Dimensions available from WW7D
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Antenna Systems for Portable, Mountaintop and Rover Operations PNWVHFS 2014 Conference
Simple Directional Antennas for 2m and above
“Cheap Yagi” http://www.wa5vjb.com/yagi-pdf/cheapyagi.pdf
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Antenna Systems for Portable, Mountaintop and Rover Operations PNWVHFS 2014 Conference
Simple Directional Antennas 2m+The Quad:
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Antenna Systems for Portable, Mountaintop and Rover Operations PNWVHFS 2014 Conference
Simple Directional Antennas 2m+The Quagi:
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Antenna Systems for Portable, Mountaintop and Rover Operations PNWVHFS 2014 Conference
A couple of tricks for making antennas extra portable:
Fold using narrow top hinges
Make elements removable with nylon thumbscrews to hold element in place
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Antenna Systems for Portable, Mountaintop and Rover Operations PNWVHFS 2014 Conference