Building the Korner 15.12

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MCS FM DX
Posts: 29
Joined: 29 Jan 2019 18:47
Location: Voluntari, Romania

Building the Korner 15.12

Post by MCS FM DX » 10 May 2019 14:22

Hello there. I am about to build a Korner 15.12 Antenna, but there is no schematic. I readed someone eles's topic, saying that there are half demensions. Ok, the antenna has 5 reflectors, but in the antenna file there are shown only 3.
If someone can help me understrand the antenna file it would be great.
Or, if someone has a drawed picture of it, it would be amazing if he sends it to me.


Thank you,

73 !

daveB
Posts: 1415
Joined: 07 Oct 2014 16:49

Re: Building the Korner 15.12

Post by daveB » 10 May 2019 17:34

Have a look at this information on K6STI's web-site. This should provide most of the information you need. http://ham-radio.com/k6sti/korn1512.htm

Add: A comment on the first picture showing a 15.12 on top of a light duty rotator (looks like an AR130X). The pole to which the antenna is attached is far to long - the rotator bearings will soon be damaged. The maker's instruction say no more than around 1.2m mase length - I would say for this size aerial no more than 500 mm.

And I would not even think of using such a light weight rotator on what is a very large aerial.

David
Locatio: Sittingbourne, Kent JO01ji
SDRPlay, AirSpyMini, RTL dongles, SB920s, Yamaha TX930. 5 ele compact yagi 20ft agl - 120 deg. FM5 - 80 deg, FM5 -180 deg. OIRT dipole and 3-ele Moxon - 80 deg. Shielded magnetic loop 0.1-200 MHz

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MCS FM DX
Posts: 29
Joined: 29 Jan 2019 18:47
Location: Voluntari, Romania

Re: Building the Korner 15.12

Post by MCS FM DX » 10 May 2019 21:35

daveB wrote:
10 May 2019 17:34
Have a look at this information on K6STI's web-site. This should provide most of the information you need. http://ham-radio.com/k6sti/korn1512.htm

Add: A comment on the first picture showing a 15.12 on top of a light duty rotator (looks like an AR130X). The pole to which the antenna is attached is far to long - the rotator bearings will soon be damaged. The maker's instruction say no more than around 1.2m mase length - I would say for this size aerial no more than 500 mm.

And I would not even think of using such a light weight rotator on what is a very large aerial.

David
I meant the dimensions for the elements, reflectors and the main boom.

fbocd
Posts: 4
Joined: 11 May 2019 13:55

Re: Building the Korner 15.12

Post by fbocd » 11 May 2019 23:21

You need this
http://gal-ana.de/basicmm/download/download.php?mm=2

and this
FM15.12.zip
(541 Bytes) Downloaded 33 times

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MCS FM DX
Posts: 29
Joined: 29 Jan 2019 18:47
Location: Voluntari, Romania

Re: Building the Korner 15.12

Post by MCS FM DX » 12 May 2019 08:40

fbocd wrote:
11 May 2019 23:21
You need this
http://gal-ana.de/basicmm/download/download.php?mm=2

and this
FM15.12.zip
Oh my god, thank you so much !

daveB
Posts: 1415
Joined: 07 Oct 2014 16:49

Re: Building the Korner 15.12

Post by daveB » 13 May 2019 22:15

I meant the dimensions for the elements, reflectors and the main boom.
All the information is there - not just pretty pictures. But I see you have been sent other program to help you.

David
Locatio: Sittingbourne, Kent JO01ji
SDRPlay, AirSpyMini, RTL dongles, SB920s, Yamaha TX930. 5 ele compact yagi 20ft agl - 120 deg. FM5 - 80 deg, FM5 -180 deg. OIRT dipole and 3-ele Moxon - 80 deg. Shielded magnetic loop 0.1-200 MHz

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