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Old 18th Apr 2017, 19:05
  #1195 (permalink)  
Join Date: Jan 2005
Location: Norway
Posts: 9
Originally Posted by dClbydalpha View Post
Thanks, my beer mat calculations had Blackrock as sub tending 900m at a couple of miles (including antenna beamwidth). At 10 nm display across, then each pixel would be about 50m and so 18 pixels. Symbols are often between 16 and 32 pixels. My concern was that if a symbol was coincident with the return then it might not have been as compelling an indication as it should. Particularly if not being looked for. All built on assumptions of what display ranges were selected so just wild conjecture. Thanks for the answer.

For those calculating radar MDR remember it is not just PW but also the Receiver Recovery Time that has to be used in the calculation.
Assumptions? Didn't the preliminary report state that the PF requested the PM to select 10 NM range?
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