SuperStation3000 Antenna System

This specialized Highway Advisory Radio Antenna System produces a signal intensity, which with FCC allowance, is higher than possible using the Conventional HAR Antenna System. At 10 watts, the signal intensity may be 2.0 mV/m at 2.25 miles, producing a signable range of 8 to 12 miles. (Special FCC allowance for increased signal intensity is required.)

The SuperStation’s 49-foot antenna/tower, antenna tuner and 30-foot groundplane are designed to be ground-mounted in an unobstructed area approximately 100 feet in radius for maximum propagation. A concrete pad supports the antenna, tower and tuner.

Components

Antenna Tower

The tower is 21” square at the top and base and 48” high. It is a one-piece, galvanized steel tower with a hinged bottom plate that allows the tower to “tilt-down” to a 90-degree angle during antenna setup and erection. The tower includes a side mount for the antenna tuner. The antenna bolts to the tower through the tower’s top plate.

Antenna Tuner System

Provided in a weatherproof NEMA4 cabinet, the SuperStation3000 HAR Antenna Tuner features tuning networks for both resistive and reactive components, lightning arrestor and ground bus on an aluminum panel.

Groundplane

A groundplane is the copper wire part of the antenna system buried beneath the antenna support. The PowerPlane Groundplane is placed in a 6” to 12” excavation that extends outward 30’ in all directions and is covered with backfill. The groundplane consists of two central arcs of #4 bare stranded copper wire with 80 radials that extend outward in a circular pattern, provided in two halves for convenience.

Hardware & Accessories

- Pad mounting bolts.
- Antenna/Tower assembly hardware.
- Conductive grease kit for antenna assembly.

Highway Advisory Radio Special Antenna System

Specifications

Antenna/Tower

- Length: 44’.
- Weight: 300 lbs.
- Base diameter: 13”.
- Material: filament wound epoxy glass.
- Finish: epoxy polyamide paint.
- Wind resistance: 180 MPH.
- Ice load: 3/4” radial at 100 MPH.
- Base section conductor: 8 copper braids.
- Third conductor: 6 copper braids.
- Assembly: 3 sections, each approximately 15' in length; 1/4", 3/16" and 3/32" hex allen head bolt connections.
- Position of loading coil: base and second sections.
- Top loading: 32” diameter sphere.
- Power rating: 1 KW.
- Dry withstanding voltage: 25 KV.
- Temperature: -60 degrees F to 150 degrees F.
- Base mounting: Eight .678” holes, equally spaced on a 10.75” circle.

Groundplane

- Quantity: single Powerplane Groundplane System in 2 equal sections for convenience; patented.
- Radials in system: 80 minimum.
- Radial length: 30’ each.
- Radial size: #12 bare solid copper wire.
- Bonding method: silver solder brazing with double weather-resistant coating.
- Bonding arc size: #4 bare stranded copper wire.
- Leads: #4 bare stranded copper wire, 15’.

Lightning Arrestor System

- Capacity: 18,000 amps surge.
- Clamping speed: fewer than 4 nS.
- Connectors: UHF (2).
- Ground connection: aluminum flange.