HL410A3 Log-Periodic HF Antenna by Rohde & Schwarz

Companies & Organizations:


Rohde & Schwarz GmbH & Co KG
Muehldorfstrasse 15
81671 Muenchen

For radiomonitoring over short, medium and global distances with extremely high sensitivity

The R&S®HL410A3 is suitable for the reception of horizontally polarized waves and allows even very weak signals to be detected.


The vertical pattern is shaped taking into account the transmission characteristics in the ionosphere. In conjunction with the extremely wide frequency range from 1.5 MHz to 30 MHz, the antenna thus allows reception over short, medium and global distances.


The half-power beamwidth of the horizontal radiation pattern of about 70° can be enhanced up to 360° by adding five further antennas. For the reception of vertically polarized waves, the antenna can be combined with the Log-Periodic HF Antenna R&S®HL210A3.


Features & Benefits


Extremely wide frequency range

Very high efficiency through dipole structure

Reception of even very weak signals

High directivity

No skip zone

Small antenna size for 1.5 MHz to 30 MHz range

Little maintenance required




Frequency range                             1.5 MHz to 30 MHz

Polarization                                      linear/horizontal

Input impedance                              50 Ω


     1.5 MHz to 2 MHz                       <6

     2 MHz to 30 MHz                        <2.5, typ. <2.0


     1.5 MHz                                        7.5 dBi

     1.6 MHz to 30 MHz                       8 dBi to 12 dBi

Efficiency                                            >90 %

Connector                                          N female

MTBF                                                 ≥100 000 h

Operating temperature range            –40°C to +70°C

Max. wind speed

     Survival (operational with reduced data)      225 km/h (140 mph)

     Operational with specified data                    130 km/h (80 mph)

Permissible wind speed including ice deposit    135 km/h (84 mph)

Permissible ice deposit

     20 mm radial                                                  on wires with diameter >7 mm

     2 × diameter                                                   on wires with diameter <7 mm


     Length of antenna array                       approx. 94 m

     Width of antenna array                         approx. 88 m

  Height of supporting mast                        approx. 66 m

Defense Products & Services: HL410A3 Log-Periodic HF Antenna by Rohde & Schwarz
Companies & Organizations: 
Country: Germany
Description: HL410A3 Log-Periodic HF Antenna
Source of Information: Rohde & Schwarz GmbH & Co KG