Тёмный
No video :(

End Fed Half Square - Does it work? 

LB0FI Norwegian Hamventures
Подписаться 3,6 тыс.
Просмотров 1,2 тыс.
50% 1

How well does an endfed half square antenna work? The correct answer is probably "it depends", but it looks like it works pretty good.
Would you like to support my content and get some bonus benefits?
RU-vid memberships are now available, or you can also use Patreon - / lb0fi
If you like my content and would like to buy me a coffee, please click here: www.buymeacoff...
If you'd like to buy the LB0FI antenna kits, please check out my Etsy store.
www.etsy.com/n...
Note: The antenna design is now open source and can be found on Thingiverse.
www.thingivers...

Опубликовано:

 

27 авг 2024

Поделиться:

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист
Посмотреть позже
Комментарии : 26   
@K5YVY
@K5YVY Год назад
Morton! Nice video, you are correct, I once set up my 40m EFHW in this fashion doing a POTA and almost ALL my contacts were straight norths as that was the direction of the antenna, I have the map screenshot somewhere , was just about a straight line.
@LB0FI
@LB0FI Год назад
Thanks! I am just experimenting though.
@MikeN2MAK
@MikeN2MAK Год назад
This antenna is definitely on the to-do list! I'll be sure to point it your way too.
@LB0FI
@LB0FI Год назад
As long as you have an EFHW and two masts you’re good 😊
@labcat73
@labcat73 Год назад
👍 For the robo mower tip... 🙃
@LB0FI
@LB0FI Год назад
It will eat through both radials and coax fast 😅
@WECB640
@WECB640 Год назад
When I model this in MMANA, I get huge lobes that go skyward. If I then feed this at one of the top corners, I get a nice solid low angle pattern (that is inline, not broadside) to the poles. This also puts the feedpoint at 50 ohms. This may be an issue with the modeling software. The feedpoint impedance shoud not be an issue as we can always tune that out with the proper UNUN or L-match. The question becomes then, WHERE does the RF go, and what is the db gain. This would make for some future videos where the two feedpoints are measured and compared (hopefully on the same day with same band conditions). 73 😎
@LB0FI
@LB0FI Год назад
I could try to model it, but I trust what Tim G5TM has done instead, he is far better at modeling than I am. I just build stuff and have opinions about it.
@Siskiyous6
@Siskiyous6 Год назад
Traditionally it is fed at a corner. Cebik modeled it and shows how to make the end fed work, but it requires radials.
@Siskiyous6
@Siskiyous6 Год назад
I built one for 2M and it worked well, though I just did a hasty job and it did not hold up. It worked fine, I did corner feed it as is traditional. Usually the end fed version has radials.
@LB0FI
@LB0FI Год назад
I am going to test the corner fed as well as soon as I have a little bit more time on my hands.
@COASTALWAVESWIRES
@COASTALWAVESWIRES Год назад
Awesome! I really like that antenna
@LB0FI
@LB0FI Год назад
I’m trying to find a place for a permanent install now.
@W4TRI
@W4TRI Год назад
Sounds like an excuse to get a second pole for me! Think I'll get a DX commander this time as they will now be available stateside soon. I have a Spiderbeam pole now.
@LB0FI
@LB0FI Год назад
I just use a pair cheap fishing poles for this setup. And since they are both 6m poles it saves me from measuring too much.
@KS0JD
@KS0JD Год назад
I understand electric mowers will trim your coax pretty quickly! Hi Hi 73
@LB0FI
@LB0FI Год назад
It’s not only electric, it’s self going as well!
@ronaldcphotography
@ronaldcphotography Год назад
What mic settings did you use ?
@LB0FI
@LB0FI Год назад
On the camera, or the radio?
@ronaldcphotography
@ronaldcphotography Год назад
@@LB0FI on the 6100? Thx
@LB0FI
@LB0FI Год назад
@@ronaldcphotography I don’t have the radio nearby right now, but I’ll check when I have time.
@ronaldcphotography
@ronaldcphotography Год назад
@@LB0FI that be great thank you
@user-zk2yd6xm8s
@user-zk2yd6xm8s Месяц назад
Not new at all. Bobtail cousin
@LB0FI
@LB0FI Месяц назад
I never claimed it was a new design, I even say 15 seconds into the video that it isn't new. It's also not a Bobtail Curtain, it's a Half Square.
@user-zk2yd6xm8s
@user-zk2yd6xm8s Месяц назад
@@LB0FI well if you examine the bobtail you will see it is two end fed half squares.
@LB0FI
@LB0FI Месяц назад
By that logic a dipole and a random wire is the same antenna.
Далее
The Half Square Antenna - End Fed
9:35
Просмотров 12 тыс.
Half Square Antenna Tips and Tricks | HAM RADIO
13:50
How to Build and Tune a Half Square Antenna
17:09
Просмотров 11 тыс.
KM4ACK End Fed Half Wave Antenna Build
18:34
Просмотров 15 тыс.