22-03-2018, 08:01 AM
(22-03-2018, 06:04 AM)VK2KRR Wrote: How about a magnetic loop
http://www.wimo.com/magnetic-loop-antennas_e.html
For those prices I could buy a new remote rig.
(22-03-2018, 07:28 AM)VK4ADC Wrote: http://www.vk4adc.com/web/index.php/hf-p...d-v-dipole
with maybe a couple of extra traps at 7.0MHz to make the inside segment tune to 20 metres.
Don't forget 30 metres either if you are interested in HF digital.. by adding yet another pair of traps at 10.1MHz.
The dipole antenna arrangement I took for my VK9NU outing 2 years ago comprised enough traps such that it covered 6, 10, 12, 15, 17, 20, 30, 40 and 80m in two separate legs off each side of the common balun. The WARC bands were on one wire leg, the standard bands on the second wire leg, the whole thing mirrored. The individual bands were tuned by adjustable droopy tails, with the separation between each trap fixed distances.
Don't forget that the legs of the dipole or V can be other than straight...
There are a few other trapped antenna articles on my web site, plus one about tuning and making traps, if you do a search on it. http://www.vk4adc.com
Thanks Doug, I did have a browse of your site last night. I'll have a more detailed look later today.
Hayden