[BC] Unique Arrays - (Update)
PeterH5322
peterh5322
Sat Jun 3 18:24:31 CDT 2006
>> WHYN uses a 3 tower DA-1 5/1 inline array with short towers,
>> marginal RSS/RMS design and rather deep nulls. Getting good
>> bandwidth on that at 560 khz is always the most challenging
>> of "unique problems".
>>
>
>LOL, "unique" I guess. The towers are barely over 50 deg and
>top loaded. The #3 should be a VERY interesting base Z. <g>
With 63.5 degree radiators, and a day and night RMS efficiency of 291.29
mV/m/kW at 1 km, it appears a little "squishing" is being done here.
Update ...
Also with short (66 degree) towers, and also with 90 degree
tower-to-tower spacing, and also on 560 KHz, but with four towers instead
of three, is KLVI.
A somewhat similar pattern, and definitely employing substantial
"squishing", KLVI enjoys an RMS efficiency of 349.27 mV/m/kW at 1 km ...
nearly Class A efficiency ... from those short towers.
Perhaps CC should add one tower to WHYN, upgrade to whatever/whatever kW
DA-1 (currently, it is identified as DA-2, but its day and night array
parameters are identical, while only the day and night powers are
different), and fully "squish" this array.
Might get all the way to Hartford, Providence and New Bedford that way.
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