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100S1
Broadband Power Amplifier
HIGH RF VOLTAGES MAY BE PRESENT AT THE OUTPUT OF THIS UNIT. All
operating personnel should use extreme caution in handling these voltages and be
thoroughly familiar with this manual.
Do not attempt to operate this unit prior to reading this manual.
The material contained in this document is the property of Electronics & Innovation Ltd., it is subject to
change without notice.
September 2022
Revision A
1
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Summary of Contents for Electronics & Innovation 100S1
- Page 1 100S1 Broadband Power Amplifier HIGH RF VOLTAGES MAY BE PRESENT AT THE OUTPUT OF THIS UNIT. All operating personnel should use extreme caution in handling these voltages and be thoroughly familiar with this manual. Do not attempt to operate this unit prior to reading this manual.
- Page 2 Warranty Electronics & Innovation Ltd., (hereafter E&I) warrants for the period of three years from the date of original delivery, each unit to be free of defects in materials and workmanship. For the period of 36 months E&I will, at its option, repair or replace defective parts so as to render the unit fully operational such that it performs according to the original specifications;...
- Page 3 1 MHz. It is rated at 100 watts of RF power with low harmonic and intermodulation distortion. A Class D design, the 100S1 will amplify inputs of AM, FM, SSB, pulse and any complex modulation signals within the bandwidth of the amplifier. The amplifier has 50 dB gain, it is unconditionally stable and will not oscillate even with combinations of mismatched source and load impedance.
- Page 4 Chapter 2 Operation 2.1 INTRODUCTION The 100S1 RF amplifier is used to amplify the RF level of signal sources in the 20 to 1 MHz. No tuning or any other form of adjustment is required. The 100S1 produces rated power output at its output connector into 50 Ohms. It will produce less power at other load impedances.
- Page 5 Chapter 3 Technical Description 3.1 GENERAL DESCRIPTION The 100S1 is designed to amplify signals by 50 dB in the frequency band of 20 to 1 MHz. The signal from the front panel RF connector is fed into the input of the pre-amplifier module.
- Page 6 There is a current limit protection circuit to protect the unit, in addition to the input drive clamp. Current and voltage samples are taken from the output and fed to the BNC connectors on the front panel for monitoring purposes. The AC supply is fed through an EMI filter to the power supply that converts the AC to 53 Vdc for the amplifier and for the cooling fan and additional DC-DC converters to supply the floating + 15 V for the gate drivers and +/- 15 volt rails,...
- Page 7 Chapter 4 Maintenance 4.1 INTRODUCTION The E&I 100S1 RF amplifier requires no periodic maintenance. The instrument is unconditionally stable and is fail-safe under all load conditions. Damage can only be externally caused by overdrive in excess of 2 watts (+33 dBm) or back-feeding the output of the unit from another high power source or incorrect connection to the AC input.
- Page 8 The material contained in this document is the property of Electronics & Innovation Ltd., it is subject to change without notice. September 2022 Revision A...
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