AK503 Mobile HF Antenna by Rohde & Schwarz

Companies & Organizations:


Rohde & Schwarz GmbH & Co KG
Muehldorfstrasse 15
81671 Muenchen

Highly reliable HF antenna for mobile use

The HF Antenna R&S®AK503 has been designed especially for mobile use. Short erection and disassembly times and low space requirements for installation and transportation have been combined with good electrical characteristics. Through optimized design with a focus on propagation conditions in the medium-wave and shortwave range, the antenna provides high reliability in radiocommunication.


The automatic Antenna Tuning Unit R&S®FK2100 ensures optimum antenna tuning in the entire operating frequency range.


Switchover between the three operating modes (optimized for specific frequency and distance ranges) is performed manually at the antenna head.


Features & Benefits


Coverage of all distance ranges

No skip zone

Omnidirectional coverage with high-angle radiation (NVIS)

Omnidirectional coverage up to 1000 km due to null fill-in

Installation time approx. 10 min




Frequency range                             1.5 MHz to 30 MHz

Max. input power                             150 W CW and PEP


   Mode 1                                          1.5 MHz to 30 MHz

   Mode 2                                          6 MHz to 26 MHz (optimized)

   Mode 3                                          for ground-wave communication and distances >2000 km

Connector                                         clamp

MTBF                                                >100 000 h

MTTR                                                <1 h

Operating temperature range            –40 °C to +55 °C

Max. wind speed                                120 km/h (without ice deposit)

Length including guy rope                  approx. 35 m

Height                                                 approx. 7 m to 11 m

Weight                                                approx. 6 kg

Defense Products & Services: AK503 Mobile HF Antenna by Rohde & Schwarz
Companies & Organizations: 
Defense Products & Services Sectors: Antennas, radio, vehicle-mounted
Country: Germany
Description: AK503 Mobile HF Antenna
Source of Information: Rohde & Schwarz GmbH & Co KG