CO-AXIAL ANTENNAS

Co-Axial antennas are half-wave dipole offering a vertically polarized, unity gain, omnidirectional radiation pattern.

These make fantastic base station & repeater antennas.  They are built from high quality aircraft aluminum, and will be custom tuned to your specified transmit frequency.

In addition to our standard models, we also offer DC-grounded shunt fed models, which have all external surfaces at ground potential.  A lightning strike will be conducted down the the vertical and down to ground through the support pipe through the grounded tower or support structure.

 

standard duty CO-AXIAL ANTENNAs

We rate these models as intermediate duty.  They are ideal for base stations and repeater installations where ice accumulation & extremely high winds above are not a concern.  They mount with standard 1-inch threaded support pipe.  You will need to select your connector type, either N-Female or UHF-Female.

CO-35A low band vhf (INTERMEDIATE DUTY)

  • Frequency range: 30-76MHz (specify your center frequency, models have approximately 400KHz of bandwidth around center frequency)
  • Skirt: 2 1/4″ Diameter Aircraft Aluminum Tube
  • Vertical: 5/8″ Diameter Aircraft Aluminum Tube (capped)
  • Weight: 4-5 lbs (dependent on your center frequency)
  • 1″ Support Pipe REQUIRED
  • 500 Watt Transmit Power
  • 75MPH Wind Rating

CO-36A low band vhf (Shunt Fed dc-ground, INTERMEDIATE DUTY)

  • Frequency range: 30-76MHz (specify your center frequency, models have approximately 150KHz of bandwidth around center frequency)
  • Skirt: 2 1/4″ Diameter Aircraft Aluminum Tube
  • Vertical: 5/8″ Diameter Aircraft Aluminum Tube (capped)
  • Weight: 10-12 lbs (dependent on your center frequency)
  • 1″ Support Stainless Steel Pipe INCLUDED (3 feet of support pipe below skirt)
  • 500 Watt Transmit Power
  • 75MPH Wind Rating

co-151a high band vhf (intermediate duty)

  • Frequency range: 108-222MHz (specify your center frequency, models have approximately 1MHz of bandwidth around center frequency)
  • Skirt: 2 1/4″ Diameter Aircraft Aluminum Tube
  • Vertical: 3/8″ Diameter Aircraft Aluminum Tube (capped)
  • Weight: 1.5-2 lbs (dependent on your center frequency)
  • 1″ Support Pipe REQUIRED
  • 500 Watt Transmit Power
  • 75MPH Wind Rating

CO-152A low band vhf (Shunt Fed dc-ground, INTERMEDIATE DUTY)

  • Frequency range: 120-174MHz (specify your center frequency, models have approximately 300KHz of bandwidth around center frequency)
  • Skirt: 2 1/4″ Diameter Aircraft Aluminum Tube
  • Vertical: 1/2″ Diameter Aircraft Aluminum Tube (capped)
  • Weight: 5 lbs
  • 1″ Support Stainless Steel Pipe INCLUDED (2 feet of support pipe below skirt)
  • 500 Watt Transmit Power
  • 75MPH Wind Rating

CO-461A UHF (INTERMEDIATE DUTY)

  • Frequency range: 380-512MHz(specify your center frequency, models have approximately 10MHz of bandwidth around center frequency)
  • Skirt: 2 1/4″ Diameter Aircraft Aluminum Tube
  • Vertical: 3/8″ Diameter Aircraft Aluminum Tube (capped)
  • Weight: 1 1/2 lbs
  • 1″ Support Pipe REQUIRED
  • 500 Watt Transmit Power
  • 100MPH Wind Rating

Heavy duty co-axial antennas

CO-40A low band vhf (HEAVY DUTY)

  • Frequency range: 30-76MHz (specify your center frequency, models have approximately 400KHz of bandwidth around center frequency)
  • Skirt: 2 5/8″ Diameter Aircraft Aluminum Tube
  • Vertical: 3/4″ Diameter Aircraft Aluminum Tube (capped)
  • Weight: 5-6 lbs (dependent on your center frequency)
  • 1 1/4″ Support Pipe REQUIRED
  • 500 Watt Transmit Power
  • 100MPH Wind Rating

CO-41A low band vhf (Shunt Fed dc-ground, HEAVY DUTY)

  • Frequency range: 30-76MHz (specify your center frequency, models have approximately 150KHz of bandwidth around center frequency)
  • Skirt: 2 5/8″ Diameter Aircraft Aluminum Tube
  • Vertical: 3/4″ Diameter Aircraft Aluminum Tube (capped)
  • Weight: 11-15 lbs (dependent on your center frequency)
  • 1 1/4″ Stainless Steel Support Pipe INCLUDED (3 feet of support pipe below skirt)
  • 1000 Watt Transmit Power
  • 100MPH Wind Rating

CO-41H low band vhf (Shunt Fed dc-ground, ULTRA HEAVY DUTY)

  • Frequency range: 30-76MHz (specify your center frequency, models have approximately 100KHz of bandwidth around center frequency)
  • Skirt: 2 5/8″ Diameter Aircraft Aluminum Tube
  • Vertical: 1″ Diameter Aircraft Aluminum Tube (capped)
  • Weight: 11-15 lbs (dependent on your center frequency)
  • 1 1/4″ Stainless Steel Support Pipe INCLUDED (3 feet of support pipe below skirt)
  • 1000 Watt Transmit Power
  • 135MPH Wind Rating

co-155a high band vhf (heavy duty)

  • Frequency range: 108-222MHz (specify your center frequency, models have approximately 1MHz of bandwidth around center frequency)
  • Skirt: 2 5/8″ Diameter Aircraft Aluminum Tube
  • Vertical: 1/2″ Diameter Aircraft Aluminum Tube (capped)
  • Weight: 1.5-3 lbs (dependent on your center frequency)
  • 1 1/4″ Support Pipe REQUIRED
  • 500 Watt Transmit Power
  • 100MPH Wind Rating

CO-156A low band vhf (Shunt Fed dc-ground, HEAvy DUTY)

  • Frequency range: 120-174MHz (specify your center frequency, models have approximately 300KHz of bandwidth around center frequency)
  • Skirt: 2 1/4″ Diameter Aircraft Aluminum Tube
  • Vertical: 5/8″ Diameter Aircraft Aluminum Tube (capped)
  • Weight: 8 lbs
  • 1 1/4″ Support Stainless Steel Pipe INCLUDED (2 feet of support pipe below skirt)
  • 500 Watt Transmit Power
  • 100MPH Wind Rating