[TowerTalk] BIG Thunder series

[L. B. Cebik]

>                            ---- X7 -----   ---- X9 -----   
> Maximum Gain (dB)     20M  12.5 @ 14 deg   13.0 @ 14 deg
>   at One Wavelength   15M  13.0 @ 12 deg   13.9 @ 12 deg 
>   (above ground)      10M  12.9 @ 14 deg   14.0 @ 15 deg
> 
An added note:  these figures, if each is 1 wl up, are at 3 different
heights.  Hence, you have to interpolate for a single height.  If you use
70' (1 wl/20), then the to angles of max radiation will be lower than
shown for 15 and 10.  If you use 35' (1 wl/10), then the angles will be
higher for 15 and 20.  Gains may also change a bit.  If you use 45' (1
wl/15), the the 20 angle goes up and the 10 angle goes down.

When you read spec sheets, be sure to analyze the data presented to be
sure you understand its implications and alterations in your real or
planned operating setting.

-73-

LB, W4RNL



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