WISCO International (Decibel Products

Specifically designed for paging, with a VSWR of 1.3 to 1 or better. Radiators are enclosed in a Horizon Blue� radome made of 3" (76.2 mm) OD Minimum-Tip-Deflection� (MTD�) fiberglass, which resists extremely high winds with very little tip deflection.
Beamtilt - Optional electrical downtilt of 1� is available, filling nulls while providing 9 dBd gain on the horizon.
Sturdy Construction - In addition to the MTD fiberglass radome, the antennas have weather-resistant masts made of strong 6061-T6 aluminum alloy.
Very Rugged - The antenna resists winds to 175 mph (280 kph) with 0.5" (12.7 mm) of icing.
Engineered to Last - All metals used in radiator, feed and matching systems are copper or brass, which minimizes galvanic reaction and reduces intermodulation.
Reliable - Each antenna is tested for 500 watts power rating compliance and the absence of intermodulation generators.
Lightning Resistant - A DC ground is provided.
Moisture Resistant - Top and bottom removable moisture drain plugs are provided.
Ready to Install - DB5091-3 No-Torsion Mount and VAPOR-WRAP� are provided.
Ordering Information - Order DB810K-YP with N-Female termination, DB810KE-YP for optional 7/16 DIN connector. For 1� downtilt order DB810KT1-YP. Mount and VAPOR-WRAP� are included. Order jumper cable separately, if desired.

Electrical Data
Frequency Ranges - MHz Gain - dBd	928-932 10
Beamwidth "E" Plane (half power) Beamwidth "H" Plane (half power)	6� Omni
Maximum power input - watts Input impedance - ohms VSWR	500 50 1.3 to 1 or better
Lightning protection Termination	Direct ground Type N-Female (fixed)

Mechanical Data
Radome (fiberglass) OD - in. (mm) Radome ID - in. (mm) Radome length - ft. (m) Mast OD - in. (mm) Mast length - in. (mm)	3 (76.2) 2.50 (63.5) 12.4 (3.78) 2.50 (63.5) 26 (660.4)
Maximum exposed area (flat plate equivalent) ft� (m�) Lateral thrust at 100 mph (161 km/hr) - lbf (N)	2.36 (0.22) 174.8 (281.2)
Wind survival without ice - mph (km/hr) Wind survival with .5" (12.7 mm) radial ice - mph (km/hr)	201.8 (324.7) 174.8 (281.2)
Bending moment 1" (25.4 mm) below top of mast at 100 mph (161 km/hr) - ft./lbs (N/m) Tip deflection at 100 mph (161 km/hr)	517.3 (701.5) 4.2�
Net weight - lbs. (kg) Shipping weight - lbs. (kg)	35 (15.88) 71 (32.2)
Mount (galvanized steel)*	DB5091-3 No-Torsion