[K3PZN-List] The Cookie Tin Antenna - QST oct 2013 p 39-41

[Jim]

Ray, 

  IF you are wanting to operate other bands and you are considering putting a vertical antenna any closer than 1/2 wavelength you might want to reconsider.  Not only can you get interaction between antennas (change in tuning, impedance, poor swr curve etc.) but you can get noise from the vertical radiated into the dipole.  Most Dxers try to avoid this scenario for just that reason. 

  You might want to consider a (so called) no resonant antenna.  This is an dipole that is as long as you can manage feed by open wire feed line like the standard window line from RADIOWORKS Inc. ( www.radioworks.com ) and then when you get the window line just outside your house entrance insert a RADIOWORKS remote balun.  Don't be fooled by much of the literature out on the internet... get the right balun..  This in turn connects to whatever coax you run into your house and you can easily tune this antenna with a very simple tuner it doesn't have to be anything special.  



Now if you get the correct lengths by accident and that is what it is... you will be able to tune all of the amateur bands and on all segments. NOW.. this is a compromise antenna to be sure but it will and does work.  



If you happen to be able choose the lengths then pick a half wave dipole on the lowest band you can manage and whatever feed line you need to get close to the house. 



These antennas DO work well Tony KF3AK uses one and it even tunes the MARS bands. If you cant tune a particular band segment  just add/remove 15/20 ft of coax and try tune again. 



If you have a problem installing this send me an email at my qrz address or on here. 



Jim WA3MEJ 


Long Live Seal Team VI 

http://www.qsl.net/wa3mej/index.htm 
----- Original Message -----
From: "Ray Wright" <kb3vwk at gmail.com> 
To: "Philip Karras" <ke3fl at yahoo.com>, "Carroll County Amateur Radio Club" <k3pzn-list at mailman.qth.net> 
Sent: Sunday, October 13, 2013 10:51:42 PM 
Subject: Re: [K3PZN-List] The Cookie Tin Antenna - QST oct 2013 p 39-41 

hi All 

ok question   if I work 20m ssb on a diapole can I put up a vertical that 
is very close using CW and what band could I use?   There seems to be a 
problem of using 20m ssb and 40m cw when I try it.  This using 100w on 
diapole and qrp on the vertical which can do anyband.  Any suggestions from 
the group? 

ray 



On Thu, Oct 10, 2013 at 5:38 AM, Philip Karras <ke3fl at yahoo.com> wrote: 

> I read this with delight as I have used this kind of antenna to get into 
> 145.410- from my shack in the basement so this antenna was about a foot off 
> the outside ground while on the top shelf mag-mount 440/2m antenna on a 
> cookie tin ~ 7-8" diameter. 
> 
> It was no doubt not the best but if the outside antenna goes I'll at least 
> have something inside until I can put something up outside again. 
> 
> The work John/W6NBC did for this was wonderful and I'll have to actually 
> do what he has done to match at least an antenna for 2m to one of the 
> cookie tines I've saved for this purpose. I really like his 10" tin that 
> hold the extendable antenna and some coax in it to take to a site. 
> 
> My article in September QST received over 20 e-mail comments, questions, 
> suggestions, and beratings. It looks like my compilation of these, along 
> with a method for starting a UPS' inverter to get it going in the 
> field, will be in an upcoming QST so keep tuned. 
> 
> 73 de KE3FL, 
> Phil 
> AEC Carroll County 
> OES, ORS, & VE 
> http://cs.yrex.com/ke3fl 
> Karras' Corner: http://blog.solidsignal.com/content.php/1005-karras-corner 
> ______________________________________________________________ 
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