Sea Tel 3011W-91, Руководство по установке

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3011W-91 Technical Specifications 3011W-91 Installation Manual
19-5
Headway: Up to 50 knots
Heave 0.5G
Surge 0.2G
Sway 0.2G
Specified Ship Motions (for stabilization accuracy tests):
Roll +/- 20 degrees at 8 second period
Pitch 10 degrees FIXED
AZ Relative 0, 45, & 90 degrees with respect to roll input
Mounting height: Sea Tel recommends that you not exceed tangential accelerations
of
0.5 G
(See chart below).
For Naval Engineering level information on this subject, please refer to Antenna Installation Guideline –
Site Arrangement, document number 130040 available on the Sea Tel Dealer Support Site.
19.10. Radome Assembly, 40”
Type Frequency Tuned
Material Composite foam/laminate
Size:
Diameter: 112.0 cm (44.1 inches)
Height: 124.1 cm (48.8 inches)
Installed weight Typical 82 kg (180 lbs.) Including antenna pedestal.
RF attenuation Less than 0.3 dB @ 10.7-12.75 GHz, dry
Less than 0.3 @ 14.0-14.5 GHz, dry
Wind: Withstand relative average winds up to 201 Kmph (125 mph) from
any direction.
Ingress Protection Rating All Sea Tel radomes have an IP rating of 56
Cable Passage - The radome base is designed with a bottom center cable passage and Roxtec® Multidiameter®
blocks for cable strain relief. Bottom center cable passage is recommended, however, a strain relief kit is provided with
the system if off-center cable entry is required. Note:
Strain relief installation procedure MUST be followed to
assure that the cored holes are properly sealed to prevent moisture absorption and de-lamination of the radome
base.
Maintenance
– The radome must be kept clean and free of residues that will increase the RF attenuation.
Repair - NOTE: Damage to the seal of the inside, or outside, of the radome can allow moisture to be absorbed. This
will result in de-lamination of the radome, increased weight and higher attenuation.