Cisco Cisco 1 GHz GainMaker Amplifier 数据表
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High-performance GaAsFET gain stage technology
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Fixed-value, plug-in accessories are common to all GainMaker products
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60 and 90 volt AC powering capability
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15 ampere current capacity (steady state) and 25 ampere surge survivability
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Optional 3-state reverse switch (on/off/-6 dB) allows each reverse input to be isolated for noise and ingress
troubleshooting (status monitoring required)
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AGC has thermal backup, which eliminates disruptive RF output variation in the event of pilot loss
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QAM pilot AGC now available in addition to existing analog carrier AGCs
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Improved hum modulation
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Plug-in, self-contained diplex filters
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Modular high-efficiency power supply allows simplified maintenance
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Reverse input pad and RF test point for each reverse input port allow optimum reverse path design and
alignment
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Directional coupler RF test points provide best accuracy
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Surge-resistant circuitry makes sure of gain stage protection without fuses or other nuisance failure-causing
devices
Figure 2. GainMaker HGBT System Amplifier Block Diagram