[Towertalk] Re: F12 C4XL or C4SXL Which to buy?

[Pete Smith]

At 05:14 PM 3/7/02 +0100, SM2EKM wrote:
>If itīs honest  figures do Force 12 say how they did measure them?
>If not the value of these figures must be considered small.
>Now, on stacked antennas in Scandinavia, this statement mainly
>applies to Finland, there are quite few stacked antennas for HF
>in Sweden and just about none in Norway and Denmark, why
>itīs like this Iīm too lazy to explain right now.

It's my understanding that the numbers are from NEC-2 and NEC-4 modeling,
and that those for 10, 15 and 20 are quite consistent with theoretical
predictions for yagis with only 2 elements and the relatively short
effective boom lengths used here.

73, Pete N4ZR

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