But these two antennas are not comparable as the C3 is a 2-element design
and the the
SteppIR is a 3-element. A fair comparison is the C3 and the 2-element
SteppIR! Let's compare apples to apples.
In a message dated 3/17/2005 3:31:40 P.M. Eastern Standard Time,
kjdutson@earthlink.net writes:
Here is some more comparison information that will be helpful to any
prospective buyer:
#el/band Turn Radius Weight pwr wind rating
wind area price
SteppIR 3 19.7 42lb 2KW 100
6.1 $1198
C-3E 2 19.8 34lb 5KW
100 5.8 $735
Keith NM5G
[snip]
The three element SteppIR is a valid comparison to your C3 ...
the SteppIR has half the elements on a boom that is two feet shorter. Yet
the SteppIR outperforms the C3 in model studies and range tests using the
K7LXC/N0AX protocols.
> The SteppIR 3 element yagi vs Force 12 C-3E (74' above ground)
>
> C-3E SteppIR elev.
> Band Gain F/R Gain F/R
> 20 12.6 16 13.4 20 13 degrees
> 17 10.3 7 13.8 21 10 degrees
> 15 12.8 17 14.2 21 8 degrees
> 12 9.8 9 14.8 14.5 7 degrees
> 10 13.2 21 15.2 11 7 degrees
> 6 n/a 16.0 20 4 degrees
>
> The C-3E numbers are Force-12 published specifications and confirmed
> by modeling with AO. The SteppIR numbers are from modeling in AO/YO
> (6 meter values use the optional passive elements).
73,
... Joe, K4IK
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
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questions and ask for Sherman, W2FLA.
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_______________________________________________
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.
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
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.
_______________________________________________
TowerTalk mailing list
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