638-70 Log Periodic Antenna (VHF)

638-70 Log Periodic Antenna (VHF)

Frequency Range: 138-174 MHz
Gain: 8dBd

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
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638-70 Log Periodic Antenna (VHF)
638-70 Log Periodic Antenna (VHF)

End Mount: 638-70

Description

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