CESTRON CST-HFD-0303-020

GENERAL DESCRIPTION

DIRECTIONAL LOG-PER HF ANTENNA CST-HFD-0303-020 (2.0 - 30 MHz)

picture Cestron CST-HFD-0303-020 Log-Per CST-HFD-0303-020 type of antenna is for stationary use.
The antenna is dimensioned that the vertical radiation characteristics are adapted for the special propagation conditions in the HF frequency range, i.e. high elevation radiation angle, short and medium distances.

The masts are made of hot dipped galvanized (thickness 80 micron) steel (comply with EN 10025, 1090, 14732/9606). The radiator wires are made of Aluminum Clad-Steel Wire (Alumoweld) (24-A20SA, diameter 2.4 mm2) and are spanned between two catenaries. Tension ropes are Galvanized/Stainless Steel. One antenna tower will be equiped with Solar Powered Obstruction Lights (ICAO).

All bolts and screws are made of stainless steel (ISO 8.8)

TECHNICAL SPECIFICATIONS
Frequency range 2.0 - 30 MHz
Gain typ. 9 - 12 dBi
Polarization Horizontal
Horizontal beam width typ. 60°
Nominal impedance 50 Ω
VSWR 2.0:1 (above 5.0 MHz)
2.5:1 (below 5.0 MHz)
RF input power Up to 10 kW Average, receive only
Available RF connectors N, 7-16, 7/8" EIA, 1 5/8" EIA, depending on RF input power
Wind Speed Operational: 150 km/h without ice
110 km/h with 1.2 cm radial ice
Temperature range/td> -35°C to +55°C
Lightning protection All metallic parts are grounded
Dimensions 105 (L) x 145 (B) x 115 (D) x 45.6 (H)
Specifications may change without notice

ELECTRICAL DATA
The following diagrams show the electrical properties of typical antenna over real ground (blue) and ideal ground (red). The results are based on simulations.
Cestron CST-HFD-0303-020 electrical data


AZIMUTH RADIATION PATTERNS
Cestron CST-HFD-0303-020 azimuth radiation patterns


ELEVATION RADIATION PATTERNS
Cestron CST-HFD-0303-020 elevation radiation patterns