216-235 MHz
PROex138-7-H-0 (HALF WAVE)

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Operating Frequency (VSWR ≤ 1.5) 138-174
Nominal Gain (dBi) 7
Horizontal Beamwidth (Deg-3dB) 270
Vertical Beamwidth (Deg-3dB) 40
Front to Back Ratio(dB) 0
Power Rating (W) 300
Length (inches) 120
Width (inches) 40.5
Antenna Weight (lbs.) 25
Cross Sectional Area (Max. Ft) 3.6
Lateral Thrust at 100mph (lbs.) 90
Rated Wind Velocity (mph) 120
Rated Wind Velocity with 1/2'' radial (mph) 90


PROex138-7-H is equipped with 5' RG213 standard feedline and N-Female connector.

Feed Line Options: Extended feed line available in 5’ increments up to a
maximum of 50 '. All extended feed line antennas equipped with LMR 400 cable and N-Male connector.

c1001 Antenna Mount

Suggested mounting bracket: C1002
(Bracket not included)


The PROex138-7-H-0 has been specifically engineered to meet or exceed all the requirements of a broadband, offset dipole professional grade antenna.

This antenna provides 7 dBi gain and operates effectively across the frequency band of 138-174 MHz with a VSWR of 1.5:1 or less.

The dipole to mast spacing is ½ wave. All Wavelink Antenna PRO Series offset antennas are manufactured using high strength 6061 T6 aluminum to ensure consistent operating performance. Each dipole junction is welded in a fixed position, incorporating a tuned, internal cable harness, thereby eliminating any exposure to the elements; every broadband dipole is fixed in place by a CNC-machined aluminum saddle. These two features combine to minimize or even eliminate all potential intermod or misalignment problems.

In addition, the dipoles are anodized to protect against environmental degradation. The PROex138-7 is made standard with 5' of RG213 cable with a soldered N-male crimp connector.