The use of a good Automatic Antenna Coupler, such as the CG Antennas CG, at the feed-point with a simple inverted L wire will provide a very good Multi-Band aerial that could be used on all bands between m and 10m and should be very simple to deploy. Unfortunately, some say the evidence is stacked against him and people have argued about the success or otherwise of his achievement for years. Attach wires as described above, thread through plexiglass. Slightly noisier 15m Better than Windom by about 1 S point. Use the Weak Signal Propagation Reporter network with my own receivers and transmitters to a study HF band radio propagation particularly to and from the Polar Regions and b evaluate and improv…" [more].
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This item is out of stock. Arrl's Small Antennas for Small Spac Frequency Band s see all. No additional import charges on delivery. Perfect for mounting to trunk or hood edge! Only because it looks prettier. Bundle Listing see all.
If you have access to some basic metal working tools, you can fabricate a rectangular bracket that will mount between the top of the base assembly and the lowest tube. These are the ruff measurements that I used above. What you really need to concentrate on is getting an interesting set of antenna insulators. The DMV-Pro uses two fibreglass arms that allow the wire aerial to be supported in a number of different configurations such a "V" shaped, "L" shaped, "M" shaped and Delta. A versatile idea that could also be implemented on a DIY basis with a little experimentation!
Note in the photograph that the PVC tape is only used to keep the turns neatly arranged. When not playing radio I'm a professional journalist specialising in aerospace, science and technology and am also author of four RSGB books. An excellent way for your Ham Radio Club to keep in touch! Radio propagation studies using WSPR. There still can be problems however, so plan ahead. The measured SWR was 3. Try not to let the wires overlap.