F-3647-HDBTM Heavy Duty

F-3647-HDBTM Heavy Duty

Frequency Range: 138-174, 406-512 MHz
Gain: 2.0-2.5dBd

The F-3647-HDBTM is a heavy duty wideband dual antenna with an 871F-70 on the base and a 771-70 on the top. The antenna offers for the 871F-70 & 771-70 a choice of radiation patterns that are determined by the dipole-to-mast spacing. The F-3647-HDBTM has an internal cabling and is not field adjustable.

The 871F-70 & 771-70 antenna is offered in a ¼, 3/8, or ½ wave pattern spacing versions. The antenna can be black anodized. Heavy Duty version of the antenna is also available.

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Description

The F-3647-HDBTM is a heavy duty wideband dual antenna with an 871F-70 on the base and a 771-70 on the top. The antenna offers for the 871F-70 & 771-70 a choice of radiation patterns that are determined by the dipole-to-mast spacing. The F-3647-HDBTM has an internal cabling and is not field adjustable.

The 871F-70 & 771-70 antenna is offered in a ¼, 3/8, or ½ wave pattern spacing versions. The antenna can be black anodized. Heavy Duty version of the antenna is also available.

Additional information

Frequency Range, MHz

138-174, 406-512

Nominal Gain, dBd

2.0-2.5

Bandwidth: 1.5:1 VSWR, MHz

36 (871F-70), 106 (771-70)

Number of Dipoles

1 (871F-70), 1 (771-70)

Polarization

Vertical

Pattern

Offset/Bidirectional

Power Rating, Watts

200 (871F-70), 150 (771-70)

Nominal Impedance, Ohms

50

Lightning Protection

DC Ground

Standard Termination

Type N Male, other connectors available upon request

Temperature range

-40 to +60 C˚

Length, in (mm)

126 (3200)

Width, in (mm)

43 (1092)

Weight, lbs (kg)

32 (14.5)

Rated Wind Velocity, No Ice, mph (km/h)

170 (274)

Rated Wind Velocity, 0.5” (13mm) ice, mph (km/h)

135 (217)

Lateral Thrust @ 100 mph, wind, lbs. (N)

95 (424)

Bending Moment @ top clamp: 100 mph, ft.*lb (N.M)

248 (336)

Projected Area, ft² (m²)

3.5 (0.33)

Mounting Information Mast O.D., in. (mm)

2.88 ( 0.73)