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Related Manuals for eb104 430-440 MHz linear amplifier
Summary of Contents for eb104 430-440 MHz linear amplifier
- Page 1 User's manual Transistor linear 430-440 MHz power amplifier 400 W...
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Page 2: Table Of Contents
Contents Introduction ………………………………………………..3 Precautions for use with the …..……………………3 Functional features of the amplifier ……………4 Characteristics of the amplifier ......4 Front Panel Description ………………………………….6 Description of the rear panel …………………………..6 Connecting the control cable ……………………………7 Power Amplifier Protection Circuits ....7 Application …………………………………………………9 Warranty ..............11... -
Page 3: Introduction
Introduction Before using the Power Amplifier, carefully read this manual and other documentation that came with your amplifier. This will allow you to reduce the risk of failure of this product. It is a transistor linear 430-440 MHz power amplifier designed for use with amateur radio stations. -
Page 4: Functional Features Of The Amplifier
Functional Features of the Amplifier The built-in potentiometers in the protection circuit and the BIAS voltage control circuit are set to the correct position during setup and testing of the equipment. Any change in the position of these potentiometers will result in the need to reconfigure the amplifier using accurate measuring instruments. -
Page 5: Front Panel Description
Front Panel Description 1. Key switch on and off the power amplifier. 2. Digital power indicator and SWR. 3. Green LED - indicates transmission mode. 4. Over current protection indicator 5. Protection indicator for excess SWR 6. Protection indicator for exceeding the maximum permissible output power Turn the amplifier off and on again to reset the protection circuit. - Page 6 Back panel description OUT - RF connector for connecting the antenna. CONTROL - connector for PTT signal. IN - connector for connecting a coaxial cable from the transceiver. 53V - connector for connecting a 30-53V power supply. Control cable connection: 5 pin –...
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Page 7: Power Amplifier Protection Circuits
Power Amplifier Protection Circuits 1. Overheat protection. If the temperature of the transistor case exceeds + 60 ° C, the bimetallic thermal switch located on the transistor case will be triggered and transmission becomes impossible, until it cools down to + 55 ° C. 2. -
Page 8: Application
Application...
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