The TBMA4 from tekbox is a double ridged horn antenna with a frequency range of 1 GHz - 8 GHz and a maximum input power of 100 W. The TBMA4 is specifically designed for use in CISPR 16 EMC pre-compliance testing above 1 GHz and can also generate a defined field strength. Most other double ridged horn antennas are quite costly and don't have such a high frequency range.
The TBMA4 comes with a pistol grip tri-pod which, because of the 1/4" adapter thread, can easily be swapped with many other tri-pods such as the TBTP2B or TBTP1 tripod. .
| Type of antenna | Double ridged horn |
| Frequency range | 1 GHz - 8 GHz |
| Nominal impedance | 50 Ω |
| Max. continuous input power | 100 W |
| Isotropic gain | 6 - 14 dBi |
| Antenna factor | 24 - 43 dB/m | Front-to-back ratio | avg. 20 dB |
| Voltage Standing Wave Ratio | < 3:1 |
| Dimensions | 241 x 153 x 214 mm |
| Weight | 1.4 kg |
| Tri-pod adapter thread | 1/4" |
| Connector | N-type |
The TBMA4 comes with:
| Tekbox TMBA4 manual | Download |