Charlie Tango 11m DX Radio Group Forum
Would you like to react to this message? Create an account in a few clicks or log in to continue.


Welcome to the Charlie Tango DX Group. The home of ALL things Radio - CB, 11m DX, Amateur, PMR446, PLD, Network and Data. We welcome all radio enthusiasts of all knowledge levels. Join today and claim your own unique World Famous CT Call-sign
 
HomeEventsCalendarFAQSearchRegisterLog in
New eQSL Email Service: Exchange eQSL cards quickly and easily with your very own eQSL email address like this... 26CT000@eQSL.me or 26CT000@charlietango.co.uk - See Latest News forum for more details.
Latest Buxton 2020 News: Unfortunately, due to the Covid-19 pandemic we have had to cancel this year's Buxton date. Sorry for any inconvenience.
Navigation
Useful Radio Sites
Log in
Username:
Password:
Log in automatically: 
:: I forgot my password
CT Bill Board





Views This Year
All Time Views
Classified Adverts

Latest topics
» Cabling my shed office
Simulation of sleeve antennas? Icon_minitimeToday at 6:24 am by Victor

» New member (Issued)
Simulation of sleeve antennas? Icon_minitimeYesterday at 10:28 pm by John123

» Colt excalibur
Simulation of sleeve antennas? Icon_minitimeYesterday at 12:12 pm by Colt

» Big burners.? Why?
Simulation of sleeve antennas? Icon_minitimeYesterday at 11:23 am by stephen Gunrunner

» Getting disillusioned
Simulation of sleeve antennas? Icon_minitimeYesterday at 10:57 am by glenn dog

» SS9900 and Power mic's
Simulation of sleeve antennas? Icon_minitimeYesterday at 10:39 am by stephen Gunrunner

» Call sign request (Issued)
Simulation of sleeve antennas? Icon_minitimeYesterday at 7:51 am by JB16170

» RF Dummy Load - DIY
Simulation of sleeve antennas? Icon_minitimeSun Sep 27, 2020 9:05 pm by Swadeyboy

» 2 ele quad /P
Simulation of sleeve antennas? Icon_minitimeSun Sep 27, 2020 3:15 pm by Alan Pilot

Keywords
chart ALINCO president Baofeng Mckinley Calling sign yaesu frequency 9900 midland tickets division callsign Sirio Mobile antenna alan lincoln ss9900 bazooka radio ss6900n call list power
QRZ Database

 

 Simulation of sleeve antennas?

Go down 
AuthorMessage
karelgol
New Member
New Member
karelgol

Call Sign : 19-CT-024
Posts : 31
Times Thanked : 0
Join date : 2020-05-21
QTH or Location : Steenwijk, JO32bs
Equipment Used : Magnum 257HP,Superstar 2000, President Bill Asc, AMP-150, Antron A99, Emperor LA-50
Age : 62

Simulation of sleeve antennas? Empty
PostSubject: Simulation of sleeve antennas?   Simulation of sleeve antennas? Icon_minitimeMon Aug 31, 2020 10:00 am

I'm using CocoaNEC for antenna simulation (the only one for Apple?) and was wondering how other users simulate the outer sleeve, just 4,6 or 8 connected wires parallel to the center conductor or is there a smarter/easier way?

73
Karel
Back to top Go down
View user profile
HenryHPSD
New Member
New Member


Call Sign : 19CT249 19DX348 PG0DX
Posts : 2
Times Thanked : 0
Join date : 2020-08-29
QTH or Location : opende
Equipment Used : JRC enthusiast variable antennas

Simulation of sleeve antennas? Empty
PostSubject: Re: Simulation of sleeve antennas?   Simulation of sleeve antennas? Icon_minitimeTue Sep 01, 2020 8:52 am

I believe there are more versions for Mac ...Mininecpro ? and possibly a few others.

In 4Nec2 you have the option to construct a cilinder with the "grid" you want.
Perhaps that is of use for you ? (maybe you can copy past the "wires" into CocoaNec?)

Keep in mind, the pitfalls of NEC2 when dealing with closed spaced wires and acute angles.
(described in the manual)

Kind regards, Henry 19DX348/19CT249 (think u are about 30Km away from me hi).

Victor likes this post

Back to top Go down
View user profile
karelgol
New Member
New Member
karelgol

Call Sign : 19-CT-024
Posts : 31
Times Thanked : 0
Join date : 2020-05-21
QTH or Location : Steenwijk, JO32bs
Equipment Used : Magnum 257HP,Superstar 2000, President Bill Asc, AMP-150, Antron A99, Emperor LA-50
Age : 62

Simulation of sleeve antennas? Empty
PostSubject: Re: Simulation of sleeve antennas?   Simulation of sleeve antennas? Icon_minitimeTue Sep 01, 2020 9:07 am

Thanks, i'll look into that. I remember my son Henk made contact to Opende, perhaps that was you?
Back to top Go down
View user profile
The DB
10 + Year member
10 +  Year  member


Posts : 13
Times Thanked : 3
Join date : 2019-06-29

Simulation of sleeve antennas? Empty
PostSubject: Re: Simulation of sleeve antennas?   Simulation of sleeve antennas? Icon_minitimeTue Sep 01, 2020 4:09 pm

If you have a PC based Mac, you can run 4Nec2 through Wine.  Unfortunately, Mac's are now transitioning away from being PC based...


The DB
Back to top Go down
View user profile
karelgol
New Member
New Member
karelgol

Call Sign : 19-CT-024
Posts : 31
Times Thanked : 0
Join date : 2020-05-21
QTH or Location : Steenwijk, JO32bs
Equipment Used : Magnum 257HP,Superstar 2000, President Bill Asc, AMP-150, Antron A99, Emperor LA-50
Age : 62

Simulation of sleeve antennas? Empty
PostSubject: Re: Simulation of sleeve antennas?   Simulation of sleeve antennas? Icon_minitimeTue Sep 01, 2020 6:42 pm

I have a MacBook Air which i got from my work and our IT department doesn't allow other operating systems or simulators being installed on it. As a result ( and of course costs) i now give my 3D drawing courses using Onshape (online 3D drawing). Does anyone know about online antenna modelling software? BTW i like the C language used in CocoaNEC.

73
Back to top Go down
View user profile
HenryHPSD
New Member
New Member


Call Sign : 19CT249 19DX348 PG0DX
Posts : 2
Times Thanked : 0
Join date : 2020-08-29
QTH or Location : opende
Equipment Used : JRC enthusiast variable antennas

Simulation of sleeve antennas? Empty
PostSubject: Re: Simulation of sleeve antennas?   Simulation of sleeve antennas? Icon_minitimeFri Sep 04, 2020 5:02 am

Hello, 

I dont recall any online software programs.... well...there are some "online yagi calculators"
But they are not really recommandable 
Well...maybe as an "introduction" to the world modelling ...to get a "hang" of the terms and and to get a general idea of how it works.

There are some open source EMfield calculators, but the learning curve is hard besides the time taken to calculate versus the purpose for most "radio" users isnt worth the effort.

If anyone starts with modeling I think most would just recommend to use 4NEC2 and go from there.
(there are good "tutorials" on youtube etc) .
In case of MAC your on the rigth path hi.

It could very well be your son worked me, though that migth have been a while ago i guess?....im not really active. Sometimes on FM with the sproadic E skip, just to enjoy "the good old days" :-) or sometimes for a "quick" hello to test an antenna or something.


Kind regards, Henry 19CT249 19DX348
Back to top Go down
View user profile
Sponsored content




Simulation of sleeve antennas? Empty
PostSubject: Re: Simulation of sleeve antennas?   Simulation of sleeve antennas? Icon_minitime

Back to top Go down
 
Simulation of sleeve antennas?
Back to top 
Page 1 of 1

Permissions in this forum:You cannot reply to topics in this forum
Charlie Tango 11m DX Radio Group Forum :: Help and Discussion Forums :: Antenna Discussion-
Jump to: