Saelig Releases Modulated Wideband Power Amplifiers For EMC Pre-Compliance Testing

Press Release Summary:

Saelig releases the new TekBox, TBMDA3 and TBMDA4 modulated wideband power amplifiers for the immunity testing of electronic circuits and related products. They create up to 5W output, providing strong electric fields for swept-frequency EMC testing. They can increase the output of a spectrum analyzer’s tracking generator and serve as standard wideband RF signal amplifiers.

Original Press Release:

Saelig Introduces Modulated RF Power Amplifiers For EMC Pre-compliance Testing

TekBox TBMDAx Modulated RF Power Amplifiers create up to 5W output, creating strong electric fields for swept-frequency EMC testing

Fairport, NY: Saelig Company, Inc. announces the availability of the TekBox TBMDA3 and TBMDA4 Modulated Wideband Power Amplifiers which have been specifically designed to provide an economical signal source for immunity testing of electronic circuits and products. While these amplifiers are intended to increase the output of a spectrum analyzer 's tracking generator, they are also useful as general purpose wideband RF signal amplifiers. The TBMDA3 and TBMDA4 are ideal for driving near-field probes in order to find sensitive spots on electronic circuits, or for creating 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 similar TBMDA4 covers a range of 100kHz to 50MHz. 

Test signals for immunity testing can be continuous wave or AM or PM modulated by the TBMDA3 and TBMDA4, which both provide built-in modulation capabilities to generate 1kHz AM or PM signals. In PM mode, they can also generate a 217Hz Signal with 12.5% duty cycle for simulating mobile phone TDMA noise.

The TekBox TBMDA3 and TBMDA4 RF Power Amplifiers are available now from authorized North American distributor Saelig Company, Inc. Fairport, NY. For detailed specifications, free technical assistance, or additional information, please contact Saelig at 888-7SAELIG, via email:, or by visiting

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About Saelig Company Inc.

Founded in 1988 in Rochester, New York, Saelig is a North American distributor with a growing reputation for finding and sourcing remarkable, unique test and measurement and control products and components for use in a wide variety of industries. Products lines are continuously added from sources across the globe, and are offered at competitive prices, accompanied by full in-house technical support, exceptional customer service, and fast delivery. For full details of available product lines, please visit


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