Download EZNEC from www.eznec.com. They have a demo package
which allows up to 10 elements. That should be more then adequate
to run a simulation and provide an intuitive feel for your
design.
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com]On Behalf Of Didier Juges
Sent: Monday, January 26, 2004 2:33 PM
To: towertalk@contesting.com
Subject: [TowerTalk] Re: Feeding 2 Inv V's with 1 feedline
If both dipoles will be used in the CW portion, I would tune the 40m dipole
first. Considering that the 80m dipole should have greater impedance at 7
MHz than the 40m dipole at 3.5 MHz, the 40m dipole will have greater
parasitic effect on the 80m operation, so you should probably adjust it
first. Now, if you want to tune the dipoles up in the band (such as the SSB
portion), or one CW and the other SSB, it makes probably less difference.
Anyone cares to comment?
73,
Didier KO4BB
At 08:39 PM 1/22/2004 -0500, you wrote:
>Inverted V antennas are not critical in length .. use the formula in the
>Handbooks .. put them up ... and have fun!
>Don
>N8DE
>
>dan bookwalter wrote:
>> I know this isnt exactly thr right forum for this but
>> i am confident i cant get the answer...
>>
>> i am putting up a pair of Inv V's one for 40 and the
>> other for 80 both feed from th esame feedline, i dont
>> recall which one i am supposed to tune first ???
>> anyone know ??
>>
>> thanks
>>
>> Dan N8DCJ
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any
questions and ask for Sherman, W2FLA.
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_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
_______________________________________________
TowerTalk mailing list
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http://lists.contesting.com/mailman/listinfo/towertalk
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