The QRPer Board

as for gain and pattern let's start with this image https://www.m0pzt.com/cobwebb_plan.jpg as a reference, the main axis of the radiation solid runs from top to bottom of image and, with the sntenna placed at 10m offers more than 6dBi of gain, the other axis (left-right) offers more than 3dBi (half ...

the activation is ongoing, snd aside some issues wirh FT8, the SSB and CW contacts are just fine. at least looking at the log https://www.mdxc.support/jw0v/log-oqrs/ and the main page carries the updates https://www.mdxc.support/jw0v/ if interested, just start from the log above and the bandplan fou...

suitable for portable operations https://www.m0pzt.com/cobweb-aerial/ and being omnidirectional may be useful for POTA the antenna offers a gain around 6dBi with low takeoff angle and an almost omnidirectional pattern it can be built using stuff found in most "home improvement" stores, so....

next July

https://www.mdxc.support/jw0v/

Vlad OK2WX, will be active as jw0v from Svalbard from 14 to 23 july 2025, 160-6 m, CW/SSB/FT8. QSL via I8KHC

happy hunting

p.s.

there's a bandplan here

https://www.mdxc.support/jw0v/band-plan/

sounds like he's still selling antennas, but the website changed to

https://ko4fsz-antennas1.square.site/

then, if instead of buying you may go gor building. the notes from AA5TB may come handy

https://www.aa5tb.com/efha.html

HTH

next saturday, details here

https://www.sciencealert.com/a-giant-ho ... solar-wind

avcording to infos on their website, confirmed by several sources, STEPPIR wil cease production on next August 31 examples https://www.reddit.com/r/amateurradio/comments/1l1mayn/at_the_end_of_august_2025_steppir_will_stop/ https://www.facebook.com/story.php?story_fbid=pfbid02mziE2MrDoSoYWMDspLp5qrCn...

You're right Mike, the advantage of AA5TB approach is that it could be used for a vertical (aluminium) antenna and it will ease "tuning" for the fundamental

yes all metric numbers just calc them as they are and convert them at end

And one which may fit portable operations ,(SOTA/POTA/...)

I'm referring to the ideas by AA5TB found here

https://www.aa5tb.com/efha.html

which are really good (notice the "tuned" 49:1)