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[CA] [CA11] Quantum 2 height
02-06-19, 08:41 PM (This post was last modified: 02-07-19 05:01 PM by Chuck - Raymarine - Moderator.)
Post: #1
[CA11] Quantum 2 height
I am installing an 18” Qauntum 2 and it will be mounted 90” back from the front lip of the flybridge soft top. I understand the beam to project downward 10 degree’s.

Q1) How high does the radar need to be elevated on a pedestal for the beam to clear the front lip?

Q2) How high would it need to be if I added a 4 degree wedge/washers?

Any help appreciated, thanks.
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02-07-19, 05:11 PM (This post was last modified: 02-07-19 05:11 PM by Chuck - Raymarine - Moderator.)
Post: #2
RE: [CA11] Quantum 2 height
Welcome to the Raymarine Forum Mark,

Q1) How high does the radar need to be elevated on a pedestal for the beam to clear the front lip?
A1: This is calculated using the tangent formula:
tangent 10 degrees = Height / 90"
Height = tangent 10 degrees * 90"
Height = 0.1763 * 90"
Height = 15.87"

Q2) How high would it need to be if I added a 4 degree wedge/washers?
A2) This is calculated using the tangent formula:
tangent (10 degrees + 4 degrees) = Height / 90"
Height = tangent 14 degrees * 90"
Height = 0.2493 * 90"
Height = 22.44"
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