Re: WSNR

[dan.strassberg@att.net]

I don't think so. I think the old site had the five 
towers _exactly_ in a line, and the azimuth of that line 
was a bit closer to 90 degrees than the azimuth of the 
line in Lyndhurst. Also, the center tower in Livingston 
was taller than the center tower in Lyndhurst.

If you examine the new application, it's pretty clear 
that the clockwise pattern rotation that accompanied the 
move to Lyndhurst was necessitated by the need to keep 
the 5 mV/m daytime contour just barely off the 
Connecticut shore for most of the length of Long Island 
Sound. What couldn't be achieved through rotating the 
pattern must have been achieved by reducing the day 
power, which was 5 kW from Livingston and is 3 kW now.

I'd guess that there was a balancing act that involved 
adjusting both the azimuth of the towers and the daytime 
power to also position the 0.5 mV/m daytime contour at 
its grandfathered location along the Jersey shore, 
thereby maintaining protection to WIP.

Presumably, despite the power reduction, the signal in 
lower Manhattan is stronger with 3 kW from Lyndhurst 
than it was with 5 kW from Livingston. The proposed day 
power from Parsippany is 8.5 kW, which should still put 
a weaker signal into Lower Manhatan than does 3 kW from 
Lyndhurst. Even so, the 25 mV/m day contour will cover 
lower Manhattan.

A point that I absolutely can't explain is how the 
proposed 8.5-kW day-pattern RMS inverse-distance field 
at 1 km just barely (by about 5%) exceeds the 
corresponding field of the proposed 5-kW night pattern. 
Since all of the night towers are part of the day array, 
this makes little sense to me. Moveover, even though the 
seven-tower day pattern is noticeably narrower than the 
five-tower night pattern, the field ratios _appear_ to 
be closer to what you'd expect from the 1.7:1 day:night 
power ratio than the ratio of RMS fields suggests.
--
dan.strassberg@att.net
617-558-4205
eFax 707-215-6367

> The old 620 site was in Livingston, and was configured exactly the
> same as the current Valley Brook Road facility: five towers, not quite
> in a line.