Search found 218 matches
- Thu Jul 17, 2025 12:01 pm
- Forum: General Discussion
- Topic: five bands cobweb
- Replies: 1
- Views: 9131
Re: five bands cobweb
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 ...
- Tue Jul 15, 2025 8:45 pm
- Forum: Questions & Advice
- Topic: Svalbaard Islands activation
- Replies: 1
- Views: 5152
Re: Svalbaard Islands activation
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...
- Wed Jun 25, 2025 8:51 pm
- Forum: General Discussion
- Topic: five bands cobweb
- Replies: 1
- Views: 9131
five bands cobweb
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....
- Wed Jun 25, 2025 7:30 pm
- Forum: Questions & Advice
- Topic: Svalbaard Islands activation
- Replies: 1
- Views: 5152
Svalbaard Islands activation
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/

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/

- Thu Jun 19, 2025 12:02 pm
- Forum: Questions & Advice
- Topic: Is anyone familiar with KO4FSZ Antennas (wire)?
- Replies: 2
- Views: 73541
Re: Is anyone familiar with KO4FSZ Antennas (wire)?
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
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
- Thu Jun 12, 2025 12:38 pm
- Forum: Questions & Advice
- Topic: Incoming solar storm
- Replies: 1
- Views: 3918
- Wed Jun 04, 2025 8:45 am
- Forum: General Discussion
- Topic: STEPPIR will soon cease production
- Replies: 0
- Views: 6683
STEPPIR will soon cease production
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...
- Fri May 16, 2025 8:16 pm
- Forum: General Discussion
- Topic: Another approach to the EFHW
- Replies: 2
- Views: 24875
Re: Another approach to the EFHW
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
- Fri May 16, 2025 8:10 pm
- Forum: General Discussion
- Topic: Simple beam antenna - the G4ZU "Jungle Job"
- Replies: 8
- Views: 111584
Re: Simple beam antenna - the G4ZU "Jungle Job"
yes all metric numbers just calc them as they are and convert them at end
- Fri May 09, 2025 7:47 pm
- Forum: General Discussion
- Topic: Another approach to the EFHW
- Replies: 2
- Views: 24875
Another approach to the EFHW
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)
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)