Frequently Asked Questions

Below you will find answers to some of our most commonly asked questions. If you’re unable to find the answer you’re looking for, please don’t hesitate to Contact Us or give us a call at 585-214-0598.

How do I find an ENI amplifier equivalent?

E&I offers a range of amplifiers which mirror the performance specifications of the former ENI line. For a more in depth comparison, please refer to our ENI Comparison page.

How do I find an equivalent to an ENI pulse amplifier?

E&I does not produce MRI pulse amplifiers.

What does P1dB mean?

E&I rates all of its amplifiers at 1 dB compression – this is the point where the power gain is 1 dB below that of the linear range. When we say a unit is rated at 100 Watts, this means you can run it at 100 Watts 24h hours a day, 7 days a week, in a continuous mode or any other mode your application may require.

Does E&I design amplifiers for HF, VHF, and UHF applications?

Yes, E&I’s broadband amplifiers cover all of these frequencies. Please refer to our Application pages for additional details on which models are best suited for specific applications.

What if my impedance doesn't match that of the amplifier?

All E&I amplifiers have a charactertic impedance of 50 ohms. If the amplifier is driving a non 50 ohm load, this will create a mismatch resulting in certain amount of power being reflected back to the amplifier.

E&I’s amplifiers are designed to withstand 100% reflected power continuously without damage. The mismatched power, however will in turn affect the gain of the amplifier.

Check out our new line of impedance matching and switchable transformers.

Is there any protection built into E&I amplifiers?

E&I amplifiers are completely protected against damage due to load mismatch provided that the input RF level does not exceed 1.0 V RMS. The units are built to withstand input signals of +13 dBm without damage for all output load conditions including short and open circuits.

What is the voltage output of an E&I amplifier?

This will depend upon the impedance of your load. If you are unsure how to calculate this, please feel free to Contact Us for more information – we can provide you with a spreadsheet that calculates this for you.