WISCO International (Decibel Products / Fiberglass

The DB803M, with 3 dBd gain, and DB803Q quad, with four 3 dBd gain antennas, are omnidirectional for 800/900 MHz applications. Radiators are enclosed in Horizon Blue™ radomes, DB803M in Decibel's 2" (50.8 mm) fiberglass and DB803Q quad in 3" (76.2 mm) Minimum-Tip-Deflection® (MTD"*) fiberglass.

Broad Response - Three models of each antenna fulfill frequency requirements for conventional, trunked, paging and cellular communications.

DB803Q Quad - Consists of four transmit or receive antennas, or in any combination, isolated by at least 25 dB each. Field proven in the US air-to-ground 849-851 and 894- 896 MHz frequencies (three Tx antennas with an Rx on top).

Sturdy Construction - In addition to fiberglass radomes, the antennas have weather-resistant masts made of strong 6061-T6 aluminum alloy.

Very Rugged - Both antennas resist winds to 200 mph (322 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.

Lightning Resistant - A DC ground is provided.

Moisture Resistant - A removable drain plug is located at the top and bottom of each antenna.

Ready to Install - DB365-OS Clamps and VAPOR-WRAP" are provided. Ordering Information Use model number for correct frequency. Dual antennas are also available, see table. Clamps are included. Order jumper cables separately, if desired.

Electrical Data
	DB806	DB806M
Frequency Ranges - MHz Gain - dBd Bandwidth - MHz	See table 3 See table	See table 3 See table
Beamwidth "E" Plane (half power) Beamwidth "H" Plane (half power)	30 Omni
Maximum power input - watts Input impedance - ohms VSWR	500 50 1.5 to 1	250each 50 1.5 to 1
Lightning protection Termination	Direct ground Type N-Female (fixed)

Mechanical Data
	DB806	DB806M
Radome (fiberglass) OD - in. (mm) ID - in. (mm) Radome length - ft. (m) Mast OD - in. (mm) Mast length - in. (mm)	2 (50.8) 1.75 (44.5) 2 (.61) 2.50 (63.5) 9 (228.6)	3 (76.2) 2.50 (63.5) 6.83 (2.08) 2.50 (63.5) 26 (660.4)
Maximum exposed area (flat plate equivalent) ft² (m²)	0.33 (0.03)	1.44 (.13)
Lateral thrust at 100 mph (161 km/hr) - Ibf (N)	13.2 (58.7)	57.6 (256.2)
Wind survival w/o ice - mph (km/hr) Wind survival w/.5" (12.7) ice	225 (362) 200 (32l.8)
Bending moment 1' (25.4 mm) below top of mast at 100 mph (161 kph) - ft. lb. (N/m)	10.01 (13.7)	159.4 (216.2)
Tip deflection at 100 mph (161 kph)	0.1°	0.7°
Net weight - lbs. (kg) Shipping weight - lbs. (kg)	6 (2.72) 12 (5.44)	27 (12.3) 53 (24.04)
Clamps (galvanized steel)	DB365-OS

Frequency Ranges Available - MHz
DB803M-XT DB8063M-XC DB803M-Y	806-869 824-896 890-960
For DB803D Dual Antenna - 3" (76.2 mm) radome - substitute "D" for "M." Example: DB803D-XC