[Waverley ARS] Isotron Antennas Pros & Cons

Colin Marks cmarks at pacific.net.au
Tue Mar 4 13:29:14 UTC 2008


 Hi Mathias
Re your comment to Simon in your "PS" :
When replying to a "members list" letter I think we often want to restrict 
our reply to only the sender. I know this is often the case for replies I 
send. Of course I realise this would not always be the case.
73    Colin    VK2LV

----- Original Message ----- 
From: "Mathias Burbach" <mathias at maranatha-consulting.com>
To: <members at vk2bv.org>
Sent: Monday, March 03, 2008 6:01 PM
Subject: Re: [Waverley ARS] Isotron Antennas Pros & Cons


> Hello Adam, Brad & Eric,
>
> Thanks for your replies.
>
> Brad wrote:
>> Hi Mathias, I think Eric may have been referring to EH antennas when
>> he said that.
>> Like you, I have also been curious about these antennas.  They have
>> been around for a long time but nobody ever mentions them.  I figure
>> if they were really good they would be a lot more popular especially
>> as they are so small. I thought they would be very narrow in
>> bandwidth, but the reviews in the EHAM say differently.
>> There are 6 pages of reviews
>> here...http://www.eham.net/reviews/detail/311  some not very
>> flattering and others quite positive.
> Yep, I had a look at those reviews and can see the very different ratings.
>
> Adam wrote:
>> Are these a commercially made mag-loop? (they sure look like them) I
>> was  thinking about building one a few months - the problem I found
>> was getting the capacitor.
> No these are not magnetic loop antennas, Adam.
>
> Eric wrote:
>> Hi Brad,
>> You are spot on. Until Mathias mentioned the Isotron I had never heard
>> of it. I have since had a look at them and they look interesting,
>> especially the claims for them. It would be interesting to compare
>> them with a full size dipole for each band.
> I have spoken to Rob (VK2VRB). He is already helping Allan (VK2VEC) with
> his setup in the attic. Rob will come over to my place on Wednesday and
> we will discuss possible configurations in the attic. I am interested to
> hear what Rob has to say too. I shall also write an e-mail to David at
> Benelec and ask if he has ever heard of Isotron antennas. I shall let
> you know the outcome of both investigations.
>
> Salut,
>  Mathias
>
> PS: Simon, can we setup our mail-list so that replies automatically go
> to the list and not the sender of the message we reply to?
>
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