Tekbox TBMDA5 modulated power amplifier
Details
The Tekbox TBMDA5 is a wideband amplifier which provides the necessary power, bandwidth and modulation for immunity testing in the a frequency range from 150 kHz to 400 MHz.
The amplifier can be connected to the tracking generator output of a spectrum analyser.
Moreover, this amplifier is ideal to drive field probes or generate electrical fields with a TEM cell.
The test signals can be CW, AM or PM modulated. Furthermore, the TBMDA5 offers a built-in modulation possibility to generate 1kHz AM-/PM signals.
Also, The TBMDA5 has sufficient gain to achieve maximum output power with 0 dBm provided by a spectrum analyser tracking generator.
In PM mode, the amplifier can also generate a 217 Hz signal with a duty cycle of 12.5% to simulate the TDMA noise of a mobile phone.
A similar modulated power amplifier with a 100 kHz to 75 MHz frequency range can be found here.
WARNING:
Never connect the output of the TBMDA5 directly to the input of a spectrum analyzer. Check the maximum input ratings of the spectrum analyzer and protect it with an appropriate attenuator. Open or shorted load is not recommended, can potentially cause damage.
Specifications
| Bandwidth | 150 KHz - 1 GHz |
| Max. input power | -5 dBm |
| Frequency range | 150 kHz - 400 MHz |
| 1dB output compression point | 1 MHz - +33.1 dBm typ. 100 MHz - +33.6 dBm typ. 400 MHz - +31.5 dBm typ. |
| Harmonics | 2nd harmonic, 100MHz, Pout=36dBm: < -15dBc typ. 2nd harmonic, 100MHz, Pout=30dBm: < -22 dBc typ. 3rd harmonic, 100MHz, Pout=36dBm: < -23dBc typ. 3rd harmonic, 100MHz, Pout=30dBm: < -33dBc typ. |
| Internal modulation frequency | AM: 1 kHz ±20% PM: 1 kHz ±10%, 217 Hz ±20% |
| Duty cycle (PM) | 1 kHz - 50% ±10%, 217 Hz - 12.5% ±20% |
Accessories
The TBMDA5 comes with:
- 2x 75cm N-male to N-male cables
- 1x 30dB/10W attenuator with N-connectors
- Power cable
Pros and cons
- Suitable for TEM cells
- Large frequency range
Downloads
| Tekbox TBMDA5 manual |  (1.12 MB) | Download |
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