F-3647-B Wideband Black Anodized
The F-3647-B is a wideband black anodized 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 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.
Description
Additional information
| Frequency Range, MHz | 138-174 (871F-70)\, 406-512 (771-70) |
|---|---|
| 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) | 41 (1041) |
| Weight, lbs (kg) | 26 (12) |
| Rated Wind Velocity, No Ice, mph (km/h) | 145 (233) |
| Rated Wind Velocity, 0.5” (13mm) ice, mph (km/h) | 115 (185) |
| Lateral Thrust @ 100 mph, wind, lbs. (N) | 85 (378) |
| Bending Moment @ top clamp: 100 mph, ft.*lb (N.M) | 210 (285) |
| Projected Area, ft² (m²) | 3.0 (0.28) |
| Mounting Information Mast O.D., in. (mm) | 2.38 (60) |
| Frequency Range | 132-174 MHz, 406-512 MHz |
| Nominal Gain | 2.0-2.5 dBd |
| Antenna Pattern | bidirectional, offset |
Ordering Information
