TÃmà antaa samat gainit metrin lyhyemmÃllà puomilla kuin Vortexin 13-elukkainen ja hyvÃn SWRn koko bandilla http://ham-radio.com/k6sti/korn193.htm. (Huomioiden ettà 1dBd = 2,15 dBi)
Etu/takasuhde on jossain kohtaa parempi Vortexilla mutta ei koko bandilla.
Nykyisillà ohjelmistoilla saadaan jagi optimoitua hyvÃllà SWRllà yli koko FM-bandin, eli maailma on muuttunut. Jagin etu on mm, ettei tarvita niità syÃttÃlinjahÃssÃkÃitÃ, jotka jossain vaiheessa alkaa hapettua ja suuntakuviot menee pieleen. MyÃs gainià saa jagista yleensà enemmÃn per puomin pituus.
73 de JTK
-----Original Message-----
From: DX [mailto:dx-bounces@xxxxxxxxxxxxxxxx] On Behalf Of Ilkka Martikainen
Sent: 21. toukokuuta 2014 11:42
To: 'Suomalaisten DX-lista'
Subject: [DX] Todella hyvà FM-DX-antenni
TÃssà todella hyvà antennisarja FM-kuunteluun:
https://www.vortexantennas.co.uk/shop/category/dipole-antennas/lpa-log-perio
dic-antennas/
Kalliita ... mutta laatu maksaa. Ja paras antenni FM-alueen 20 MHz:n kaistan vastaanottoon on ehdottomasti logaritmiperiodinen. Enpà ole parempia suoritusarvoja nÃhnyt!
73 de SDXL1398/OH5MD, Ilkka M.
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_______________________________________________
THE INFORMATION IN THIS ARTICLE IS FREE. It may be copied, distributed
and/or modified under the conditions set down in the Design Science License
published by Michael Stutz at http://www.gnu.org/licenses/dsl.html
___________________________________________________________________________________ DX mailing list DX@xxxxxxxxxxxxxxxx http://montreal.kotalampi.com/mailman/listinfo/dx _______________________________________________ THE INFORMATION IN THIS ARTICLE IS FREE. It may be copied, distributed and/or modified under the conditions set down in the Design Science License published by Michael Stutz at http://www.gnu.org/licenses/dsl.html