Introduction：
The HFRA 5149 is a magnetic field transmitter loop antenna manufactured by Schwarzbeck (Germany) and distributed by EUTTEST. The antenna is capable of inputting 100 W of power for a short period of time, and can be operated continuously at 30 W for extended periods of time. The antenna needs to be terminated with a power consuming 50 Ω/20 W load, noting that the load is part of the antenna and cannot be removed during testing. It is sufficient for the maximum output of a laboratory power generator.
Technical parameters：
| Model number | HFRA 5149 |
| manufacturer | Schwarzbeck |
| agent | Euttest |
| Ring antenna name | Passive magnetic field loop antenna - launch |
| nominal frequency | 9kHz-30MHz |
| impedance | 50Ω |
| SWR | < 2 (0.02 - 20 MHz) < 4 (0.009 - 30 MHz) |
| Required annexes | 50 Ω / 20 Watt |
| size | 515 x 585 x 80 mm |
| weight | 1250 g |
| support sth. | 3/8" connector Mates with AM9144 tripods |
Recommended Test Configuration:
As shown in the figure below, this antenna can be tested in conjunction with the receiver antenna HFS 1546, where the 5149 will be used for power input and radiate a magnetic field to the front of the antenna, and the HFS 1546 will be placed in a different test position to receive the field.
Test Connection Diagram with Receiver Antenna HFS 1546
Magnetic field strength at different test distances with HFS 1546
