lilomar
20.06.2021 2:40:57
By hand, move the antenna around till you get maximum return from the target. that's your focus point. peak of the beam.
See full version: Mounting distance from radar to gps/light/ante
By hand, move the antenna around till you get maximum return from the target. that's your focus point. peak of the beam.
If I have to much angle will my radar preform poorly at headway speed?
Crank up the radar and monitor the display.
How do I determine if I need a wedge to help with the radar cone angle when under way? (The boat clearly has a higher angle when under way on plane as a pose to headway speed)
On antenna pitch, depends upon beam width of the antenna. Easy to determine that. more
Have the boat at rest in totally calm water. here
Find a target at maximum range or as far out from the boat as possible. A channel marker buoy would be great. [links]
Have the radome sitting on the mounting surface but not attached. [links]
Re: Mounting distance from radar to gps/light/ante. more
Probably 3' is just a guess. Frequencies are significantly different which would normally keep you from worrying about interference. like if 3' is tolerable, there is not much difference in 6" in terms of signal strength change. Just so that you have no mechanical interference. more
How do I determine if I need a wedge to help with the radar cone angle when under way? (The boat clearly has a higher angle when under way on plane as a pose to headway speed)
Point the antenna forward and you get aft of it. you don't want to be in front of it while it is radiating (microwave oven type thing). here
Will the radar dome interfere with the GPS antenna if they are at the same level? Ive been told two different things. Any input would help with my instllation. Ive been told to elevate the GPS antenna above the radome. more
Will the radar dome interfere with the GPS antenna if they are at the same level? Ive been told two different things. Any input would help with my instllation. Ive been told to elevate the GPS antenna above the radome.
Don, this is a good question and based on the research I did, the answer is "NO" they should not interfere. You should still take care in how you mount it. I just put in a Garmin 192C and there is no problem. I have the VHF antenna on the port side, radar in the middle and GPS mounted in the line of sight with the radar on the stbd side. No problems with any of the gear. Just try to mount the GPS at least 2-3 ft away from the radar and also away from the VHF. All my gear is on an arch and I wanted to keep the GPS ant. low so it doesn't hit my custom "drive-under" boat cover. [links]
What we see in the photo above is really pretty marginal, at least based on NMEA’s own installation standards. According to the standard, satellite TV antennas should be three feet away from VHF antennas and GPS antennas, and VHF antennas need to be no less than three feet away from GPS antennas.
Horizontal antenna separation is when the amount of signal coupled from one antenna to another is reduced as a function of distance. One way of achieving this isolation is through antenna separation in the horizontal plane.Vertical antenna separation is a more efficient method of achieving the required isolation in space-constrained environment. more
What constitutes appropriate separation for boat antenna to ensure interference from one system to another? The answer for proper vertical and horizontal antenna separation can be complex, but there are a few rules that will help ensure maximum performance.
Vertical separation provides significantly more isolation than horizontal separation.Inverted mounting of an antenna is another method often used to conserve tower space or to provide RF isolation (typically utilized for omnidirectional whip antennas). here
by Larry » Wed Dec 18, 2013 1:38 pm
From NMEA Talker. White Rx+, A
Brown RX-, B
This is the port 2 connection?
by Naples Spearo » Thu Mar 20, 2014 6:40 pm here