Lowrance HALO20 Radar HALO 20 20 and 24 Installation Manual - Page 9

Choose the scanner location, Do not install the scanner

Get Lowrance HALO20 Radar PDF manuals and user guides View all Lowrance HALO20 Radar manuals
Add to My Manuals
Save this manual to your list of manuals

Page 9 highlights

Choose the scanner location The radar's ability to detect targets greatly depends on the position of its scanner. The ideal location for the scanner is high above the vessel's keel line where there are no obstacles. When you are deciding on the location, consider the following: A higher installation position increases the radar ranging distance, but it also increases the minimum range around the vessel where targets cannot be detected. Higher installation height also reduces the ability of the radar to detect targets in sea clutter. The length of the interconnection cable supplied with your radar is sufficient for the majority of installations. If you think you'll need a longer cable, consult your dealer before installation. Optional cable lengths are 5 m (16 ft) 10 m (33 ft), 20 m (65.5 ft) and 30 m (98 ft). If you mount the scanner on a pedestal or base, ensure that rain and sea spray can drain away rapidly, and the breather hole (A) in the base can operate. A The scanner should, where possible, be installed parallel to the line of the keel. Do not install the scanner: • directly on to a large flat roof area. Use a pedestal to elevate the scanner so the radar beam clears the roof line. Refer to "Considerations for roof mounting" on page 10 • too high up (eg at the top of a mast), which may cause degradation of the radar picture over short ranges • close to lamps or exhaust outlets. The heat emissions may damage the dome. Soot and smoke will degrade the performance of the radar • close to the antennas of other equipment such as direction finders, VHF antennas, GPS equipment, as it may cause or be subject to interference • where a large obstruction (such as an exhaust stack) is at the same level as the beam, the obstruction is likely to generate false echoes and/or shadow zones • where it will be subjected to strong vibrations. Vibrations could degrade the performance or service life of the radar ! Warning: For dual radar installations, ensure the Halo Radar is not installed in the beam of a pulse radar at any time. Installation | Halo20, 20+ and 24 Dome Radars Installation Manual | 9

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
| 9
Installation |
Halo20, 20+ and 24 Dome Radars Installation Manual
Choose the scanner location
The radar’s ability to detect targets greatly depends on the position of its scanner. The ideal
location for the scanner is high above the vessel’s keel line where there are no obstacles.
When you are deciding on the location, consider the following:
A higher installation position increases the radar ranging distance, but it also increases the
minimum range around the vessel where targets cannot be detected. Higher installation
height also reduces the ability of the radar to detect targets in sea clutter.
The length of the interconnection cable supplied with your radar is sufficient for the majority
of installations. If you think you’ll need a longer cable, consult your dealer before installation.
Optional cable lengths are 5 m (16 ft) 10 m (33 ft), 20 m (65.5 ft) and 30 m (98 ft).
If you mount the scanner on a pedestal or base, ensure that rain and sea spray can drain away
rapidly, and the breather hole (
A
) in the base can operate.
A
The scanner should, where possible, be installed parallel to the line of the keel.
Do not install the scanner
:
•
directly on to a large flat roof area. Use a pedestal to elevate the scanner so the radar beam
clears the roof line. Refer to “Considerations for roof mounting” on page 10
•
too high up (eg at the top of a mast), which may cause degradation of the radar picture
over short ranges
•
close to lamps or exhaust outlets. The heat emissions may damage the dome. Soot and
smoke will degrade the performance of the radar
•
close to the antennas of other equipment such as direction finders, VHF antennas, GPS
equipment, as it may cause or be subject to interference
•
where a large obstruction (such as an exhaust stack) is at the same level as the beam, the
obstruction is likely to generate false echoes and/or shadow zones
•
where it will be subjected to strong vibrations. Vibrations could degrade the performance
or service life of the radar
!
Warning:
For dual radar installations, ensure the Halo Radar is not installed in the
beam of a pulse radar at any time.