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Radarspotting

Miscellaneous => Other Topics => Antennas => Topic started by: w4rtt on May 05, 2015, 02:08:12 AM

Title: coil orientation
Post by: w4rtt on May 05, 2015, 02:08:12 AM
When building the wire 1090 colinear, does it mattter if the coils are wound right or left? I would asume you should keep both coils wound the same.

Randy
W4RTT
Title: Re: coil orientation
Post by: corsa on May 05, 2015, 09:21:18 AM
Hi Randy

It might be helpful for you to have a chat to Chris Taylor at TMRF. He's always very helpful..........

Tom
Title: Re: coil orientation
Post by: corsa on May 05, 2015, 09:25:42 AM
Hi Randy

Taylor Made RF Limited
www.tmrf.co.uk/


Tom
Title: Re: coil orientation
Post by: w4rtt on May 07, 2015, 04:03:16 AM
OK, I'm open to a chat with anybody on this. No one has answered; the question still stands.

Randy
Title: Re: coil orientation
Post by: Truetrack on May 07, 2015, 08:05:46 AM
I believe it makes no difference whether right or left wound or having it mixed.
The aim with colinears is to have its actively excited vertical sections phased so as that the RF-current flows in same direction.
IMHO each phaseing length wound in a ring with just one turn rather than coils with multiple turns
should have no influence.

73
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