Yes, I forgot about the WX0B box. I now will rephrase my
statement like this:
People with a lot of money will buy the WX0B box, uses
the W7EL current forcing method, which is a good method.
People with less money will buy the Comtek box, uses 3-dB
Hybrid coupler, not a perfect method.
People (LIKE ME) with even less money can build a W7EL
unit by themself, it takes time but it´s interesting IMHO.
No offence I just want to point out different options.
73, I will now crawl back under the rock, Jim SM2EKM
1) different principles: the Comtek box use hybrids to achieve +90/0/-90
degrees of phasing, whereas WX0B use a lumped elements network
2) price: WX0B is abt. 3x more expensive
Array Solutions argues that their box is superior because there is no
dumped power; it has been reported here that "wasted" power (for Comtek
boxes) is between 0 to 10%, so maybe not so significant (although 10%
power is 1dB).
73 de Mike, YO3CTK
----- Original Message ----- From: "R. Kevin Stover" <firstname.lastname@example.org>
To: "Jim Lux" <email@example.com>
Cc: "Yo3ctk" <firstname.lastname@example.org>; "Jan Erik Holm" <email@example.com>;
Sent: Thursday, November 18, 2004 5:24 PM
Subject: Re: [TowerTalk] 80m 4Square Comtek box
What are the differences between the Comtek box and the one done by
WXØB @ Array Solutions?
R. Kevin Stover, ACØH
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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