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Hello DB, Yes, you can use NEC5 with 4NEC2. The fact that Arie doesnt support the engine doesnt mean you cant use it. (ps the same is true for example for NEC4mp etc) You can either use Dan his trick https://forums.qrz.com/index.php?threads/using-nec-5-with-4nec2.817589/ Or simply upload the...

Above an example of NEC2 versus NEC5 with the collinear I made in the past. NEC2 shows 7.04 dBi in gain where NEC5 indicates 6.58. (Using that moderate ground conditions). This while the AGT tells us: it should be down with only 0.14dB. PS i didnt optimize for lowest NEC2 AGT....this is just to...

Sounds logical :-) if u dont use it...there is no need to have it, I wasnt aware you rarely used it. Just to have it said: You CAN use NEC5 within 4NEC2 that is no problem. I believe surface modeling is an issue, but that is also the case with EZNEC. NEC5 does come with its own tools for...

Good job DB ! I dont think you are the anomaly at all, average ground conditions is the "unwritten" standard for real ground conditions to my understanding. Though it should be mentioned each time for clarification. Have you used NEC 5 DB ? (My models show an average gain of 1 while using NEC5...

We all want optimum, though i can imagine in regards to a collinear on 27 MHz.. it is more or less not a question of what we would like, it rather is one of what is mechanical possible. @ Bob, Top part was ...if memory serves me well ...the top part was 6,7 meter. Grazioli...I noticed the...

Hello all, Bob, A while ago i was wondering the same thing... the Austalian collinear... Then out of nothing when i woke up ... Duoro... that was it. All I did find was : https://web.archive.org/web/20140624224130/http://kur02.com.au/index.php?option=com_content&view=article&id=13&Itemid=22...

Hello Mark ! You are more then welcome, i honestly did forget about your earlier question, glad it was answered in the other topic. I dont think there is much to add... If we sum things up: -In an L-shape..it certainly will work, performance is slighlty down compared to a vertical...

As soon as your signal hits (vertical or horizontal) the layers it breaks up in the ordinairy and extra ordinairy wave. Your signal will start to rotate. But it rotates so fast... there is no difference between either vertical or horizontal anymore.(in 99 percent of the cases) on the receiver...

I wonder what you mean with the V-QUads elevation is actually slightly lower than the omni direction... I quickly scanned the article, it left some questions with me... And there are some statements that are ....lets say open for debate. It certainly is not true that this antenna does not...

I would not rule out the 2el Cubical Quad BJ mentioned... You have stated you would like "vertical" polarisation, and better results then your present vertical. That means the delta loop has to be on the flat side in alsmost a "<" shape. ( One leg needs to be horizontal.) One of your...

Hello Greg, Im reading 14dB gain for that 2el Delta loop antenna and 11dB on another page of the manufacturer... Without any other information as crawdad and you have indicated. So that leaves some room for debate :-) If the antenna is "well designed" you should be able to get about 7dBI...

Your more then welcome Mark, It is a lot better to be on a forum then ask these questions on FB and get 100 shouters to provide a reply without facts. @ BC Coyote.. Well, actually ( in worse case scenarios) it could help with transmit and receive. Just to have it said, im not a fan of the...

Indeed. The distance depends a bit, Normally a halve wave length or just beyond that is adviced. I took a random 3el yagi: On its own the antenna would have 7,6dBI (which is what is to be expected) If we stack 2 of them vertical we will find: 4 meter distance will add about 2 dBi 5 meter...

Im not sure i fully understand your question, this obviously is due to my language barrier, my apologize...ill give it a shot: If you mount a 5/8 wave above your beam, You should remove the radials and place it direct on top of the yagi, in that way the beam can work as radials. Or... You...

Hello, The maco Y-quad isnt a cubical quad. Its two yagi's one vertical and one horizontal and a wire well...to make it look interersting. That refelector wire gained hugh fame due to the avanti moonraker antennas...But..these antennas will still have issues with the metal mast. It will...

Hello, The differences between the MACO 104 and Sirio SY-4 can be found here. The Maco has a longer boom length, hence it will have more gain. With that said, the overal antenna pattern of the Sirio is better. (The maco could have an up-grade). Mechanical the elements are rather similair...

Hello, I doubt the center load would help you in this case. It is true that coil (position) can help (higher position is better), but it would be hard to tell the difference. Especially since the one you are referring to are helical wound and have a lower power rating. Power rating is a good...

Good to see you again Superlid ! Ah yes the ...Sigma they are added ... The (tiger?) shark antennas, I couldnt find a dedicated company website. But i do see antennas for sale like the : Tiger Shark Which looks the same as : procomm Conclusion: You are correct ! Guess they are indeed...

Thank you Somicide ! The list is updated ! ( and a bug in the table was removed.)

Thank you Superlid ! My apologize it took a bit longer this time, free time was spare over the last couple of days HI. The Cushcraft isnt listed on the manufacturers website, maybe i am not looking correct ? Cushcraft is MFJ : https://mfjenterprises.com/collections/cushcraft The Shark was...