I have a home brew 5 band/4 el on a 30 ft boom. All fed separately thru a
coax relay and a 1/4 w 75 ohm stub. I just checked 20m for you:
14025 1:1
14125 1:1.23
14225 1:1.53
14325 1:1:05
Hope that helps
Ed
At 10:33 PM 2/5/02 -0500, Mark Fancher wrote:
>All:
>
>I've been studying the subject antenna in the ARRL Antenna Handbook. The
>Handbook says, "Because quads are rather broadband antennas, excellent
>performance is obtained in both the CW and SSB band segments of each band.
>Changing dimensions in favor of a frequency 200 kHz higher in each band to
>create a "phone" antenna is not necessary".
>
>My question arises in the EZNEC model of this antenna. I find that on 20m,
>its not broadbanded at all. In fact, I get a 2:1 SWR bandwidth of only 170
>kHz. 10 and 15 m has a fairly broad bandwidth.
>
>Does anyone out there actually use one of these antennas? Is it really this
>narrow on 20m?
>
>BTW, the radiation plots for this thing are outstanding, especially for a
>height of only 30 feet! I would really like to put one of these in the air!
>I'm just a little concerned about the narrow bandwidth on 20m.
>
>Mark Fancher, AA4MF
>mmfancher@earthlink.net
>
>
>
>________________________________________________________________________
>Where do you get ICE bandpass filters & beverage matching boxes? The
>same place that pays for the hosting of this list: The eHam Store.
>Order online at http://store.eham.net.
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________________________________________________________________________
Where do you get ICE bandpass filters & beverage matching boxes? The
same place that pays for the hosting of this list: The eHam Store.
Order online at http://store.eham.net.
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