[VHFcontesting] Example of a real-world calculation [was: A suggestion for ERP-based Entry Classes]

Ev Tupis (W2EV) w2ev at arrl.net
Tue Dec 16 21:50:38 EST 2003


wbr wf4r wrote:
>     I have been very fortunate to have been declared Roanoke Division  winner
> of the ARRL August UHF Contest for the last three years.  My success can only
> be accounted for the fact that I have 2x 4329WL antennas @ 85' and only run 60
> Watts out of the brick amplifier.  Not that my score was all that great, but
> if I had been forced into the high power catagory just because of the
> antennas, it would not have been.

Bill,
No one said that your antenna system would put you in the HP or "S/O Unlimited"
category.  Your ERP factor would be calculated as...
 (56 elements) * 60 watts = 3,360

Assuming that the same pivot point exists as for 2-meters (4,100), then you are
still considered Low Power (or S/O Limited).  Nothing changes!  Again though...I
need to repeat myself... the selection of "pivot point" needs to be made with
forethought to be meaningful.

Ev, W2EV

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