- 4-channel magnetic field probe amplifier
- Wideband operation for EMC testing
- Low-noise, high dynamic range amplification
- Compatible with Tekbox magnetic field probes
- Simultaneous multi-channel signal measurement
- Ideal for EMI troubleshooting and pre-compliance testing
TBMA4
Double Ridged Horn Antenna
CISPR 16 divides the frequency range into several bands and defines specific antennas for each of these bands. For the frequency range above 1 GHz, CISPR 16 specifies using wideband horn antennas for radiated noise measurements. Standard wideband horn antennas for EMC applications are quite costly and cover a frequency range far wider than available on typical low cost EMC pre-compliance spectrum analyzers. In order to provide an antenna optimized for pre-compliance EMC testing applications above 1 GHz, Tekbox designed the TBMA4 double ridged horn measurement antenna.With its moderate price, it is an affordable product for radiated noise EMC precompliance testing and generating defined field strengths. The TBMA4 is characterized from 1 GHz to 8 GHz and has a directional pattern typical for double ridged horn antennas.
Features
Key capabilities and advantages
Specification
Technical specifications and parameters
| Type | double ridged horn |
| Frequency range | 1 GHz – 8 GHz |
| Nominal impedance | 50 Ω |
| Connector | N type female |
| Maximum continuous input RF 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 (VSWR) | < 3:1 over the entire frequency range; < 2:1 average |
| Width | 241 mm (9.49 “) |
| Height | 153 mm (6.03 “) |
| Depth | 214 mm (8.44 “) |
| Weight | 1.4 kg (3.08 lbs) |
| Tripod Adapter Thread Size | ¼” |
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