638-70 Log Periodic Antenna (VHF)
Wide band, ideal for base station or in-building applications
- Available in VHF and UHF configurations
- Very high front-to-back ratio
- Performance is constant throughout the band
- Rugged design to withstand harsh environmental conditions
- Ultra-low VSWR ratings
- Vertical or horizontal polarization
- DC ground for lightning protection
Description
Product available at the iBwave library. The log periodic antennas are available in VHF and UHF configurations. These antennas have an extremely good front-to-back ratio. They are wideband and are ideal for base station or in-building applications. These antennas are great for providing underground coverage within garages. Performance is constant throughout the band. • Each antenna has a rugged design to withstand harsh environmental conditions. • The mounting hardware supplied allows either vertical or horizontal polarization. • DC ground for lightning protection
Additional information
| Frequency Range, MHz | 138-174 |
|---|---|
| Nominal Gain, dBd | 8 |
| Bandwidth: 1.5:1 VSWR, MHz | 36 |
| Polarization | Vertical or Horizontal |
| Horizontal Beamwidth (Ver. Pol) | 75º |
| Vertical Beamwidth (Ver. Pol) | 55º |
| Front to Back, dBd | 25 |
| Pattern | Directional |
| Power Rating, Watts | 500 |
| Nominal Impedance, Ohms | 50 |
| Lightning Protection | DC Ground |
| Standard Termination | N Male |
| Length, in (mm) | 60 (1524) |
| Width, in (mm) | 44.5 (1130) |
| Weight, lbs (kg) | 16.8 (7.8) |
| Rated Wind Velocity: no ice, mph (km/h) | 150 (241) |
| Rated Wind Velocity: 0.5" (13 mm) Ice, mph (km/h) | 108 (173) |
| Lateral Thrust @ 100 mph wind, lbs (kg) | 47.5 (21.5) |
| Bending Moment @ top clamp: 100 mph, ft*lb (kg*m) | 121 (16.7) |
| Projected Area, ft² (m²) | 1.26 (0.120) |
| Mounting Information for Pipe Size O.D., in (mm) | 1" to 2.5" (64) Clamp included |
| Frequency Range | 138-174 MHz |
| Nominal Gain | 6-8 dBd, 8-10 dBd |
| Antenna Pattern | directional |
Ordering Information
