[TowerTalk] Trap resonance

[Del Seay, KL7HF]

Thanks, L.B.  I wondered why they did that. HyGain triband antennas
use traps resonant way below each band and it never made sense to me before.
Very interesting.  de KL7HF



At 11:52 AM 8/11/97 -0400, you wrote:
>O
>The selection of a frequency below the higher band limit is for a reason:
>to equalize the gains of the antennas.  Selecting a frequency for the
>trap within or at the low end of the upper band results in unequal gains,
>while going too low below the upper band also makes the gains unequal.
>something in the 90-95 percent of the lower end of the upper band tends to
>yield performance on both bands as listed.


--
FAQ on WWW:               http://www.contesting.com/towertalkfaq.html
Submissions:              towertalk@contesting.com
Administrative requests:  towertalk-REQUEST@contesting.com
Problems:                 owner-towertalk@contesting.com
Search:                   http://www.contesting.com/km9p/search