• CW amplifier (modulation off)
• 1 kHz, 80% AM modulation
• 1 kHz, 50% duty cycle pulse modulation
• 217 Hz, 12.5% duty cycle pulse modulation
• Frequency range: 100 kHz - 75 MHz

The TBMDA4B modulated wideband power amplifier is designed to create an inexpensive signal source for immunity testing of electronic building blocks and products. It is designed to be driven by the tracking generator output of spectrum analyzers. With an input power range of -20 dB to -10 dBm, it can boost the output power of a tracking generator up to 5W. With a frequency range from 100 kHz to 75 MHz, it is an ideal complement to the TBMDA3, which covers 10 MHz to 1 GHz.

The TBMDA4B is ideal to drive Tekbox near field probes to find the sensitive spot of an electronic circuit or to create electric fields up to 550V/m when driving the Tekbox TEM Cell TBTC0; 300V/m when driving the TBTC1; 150V/m when driving the TBTC2; 100V/m when driving the TBTC3. Test signals for immunity testing can be CW, AM or PM modulated. The TBMDA4B provides built-in modulation capability to generate 1 kHz AM or PM signals. In PM mode, the TBMDA4B can also generate a 217 Hz Signal with 12.5% duty cycle to simulate mobile phone TDMA noise.

Please click here for application diagrams for the TBMDA4B

Please click here for technical specifications.