BROADBAND MONOPOLE ANTENNA FOR SHORTWAVE RADIO BROADCASTING

GENERAL DESCRIPTION


The broadband monopole antenna is vertically polarized, has a low angle radiation pattern and is used for short range circuits by ground wave and medium to long range circuits by sky wave.

The antenna is broadband, omnidirectional and conical.

The broadband frequency capability does not require tuning.

The radiation pattern in the azimuth plane is essentially omnidirectional, while the elevation pattern varies with frequency.

The support structure is a guyed mast supported on a base insulator.

The radiator comprises a biconical cage of wire.

Monopole antennas require a radial ground screen for specified performance. The ground screen consists of wire conductors laid out radially from the tower base and terminated at the outer end.
broadband monopole antenna


TYPICAL RADIATION PATTERNS
Azimuth pattern Elevation pattern
typical azimuth pattern broadband monopole antenna typical elevation pattern broadband monopole antenna


TYPICAL COVERAGE MAP
typical coverage map broadband monopole antenna


TECHNICAL SPECIFICATIONS
ELECTRICAL
Azimuth pattern omnidirectional
Frequency ranges 2-30 / 3-30 / 4-30 MHz
Gain 4-5 dBi
Input impedance 50 ohm unbalanced
Polarization vertical
Power ratings 1 / 10 / 20 / 25 / 40 / 50 / 100 kW average
Specifications may change without notice

THIS TYPE OF ANTENNA IS AVAILABLE FROM
Manufacturer Type number Power Level
ASC Signal 1794
M
2753 L M
3794 L M
Antenna Products Corporation CMV-230/330/430 L M
CMV-600 L M
Kintronic Laboratories, Inc. HFM Series L M H
RFS Radio Frequency Systems WM & BC Series
M
RIZ Transmitters 10-100 SW
M H
TCI Model 506 L M
Model 550
M
Transradio SenderSysteme Berlin AVE 0640

H