Modulated RF power amplifiers For EMC pre-compliance testing

Saelig Company offers the new TekBox TBMDA3 and TBMDA4 Modulated Wideband Power Amplifiers which have been specifically designed to give an economical signal source for immunity testing of electronic circuits and products. While these amplifiers are meant to increase the output of a spectrum analyser 's tracking generator, they are also valuable as general purpose wideband RF signal amplifiers. The devices are perfect for driving near-field probes to find sensitive spots on electronic circuits, or for generating strong electric fields of up to 550V/m when driving TEM Cells. With an input power range of -5dBm to 0dBm, they can boost signal power up to 5W. The TBMDA3 has a frequency range from 10MHz to 1GHz, while the TBMDA4 has a range of 100kHz to 50MHz. Test signals for immunity testing can be continuous wave or AM or PM modulated by the devices, which both offer built-in modulation capabilities to generate 1kHz AM or PM signals. In PM mode, they can also generate a 217Hz Signal with a 12.5% duty cycle for simulating mobile phone TDMA noise.