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40 dB Fixed Gain 4-Port Amplifier
Model HD4PNBFG40B
Instruction Manual
www.hdtvlabs.tv
Страница 1: ...40 dB Fixed Gain 4 Port Amplifier Model HD4PNBFG40B Instruction Manual www hdtvlabs tv ...
Страница 2: ...liminate the need for any external capacitors 4 The input signal level to this amplifier is only 75 dBm as compared to a typical 35 or 40 dBm level for existing amplifiers Installers not accustomed to working with the weaker 75 dBm input signal risk overdriving the amplifier if they do apply a 35 or 40 dBm signal at the input 4 If poor C N ratio is seen at the output of the amplifier it is being o...
Страница 3: ... inputs and outputs of each of the four amplifier channels have internal DC blocking capacitors thus eliminating the need to add external DC blocking capacitors MADE IN USA Features Wide signal dynamic range capability Ultra low level signal recovery Corrosion resistant connectors Rugged aluminum construction Specification Minimum Typical Maximum Frequency 250MHz 2150MHz Noise Figure 3 8dB 4 8dB A...
Страница 4: ... not possible Signal levels lower than 75dBm can be recovered with properly designed systems having over all low system noise figures Low noise figure systems are achieved by avoiding the addition of too many attenuators or too much loss in front of an amplifier block It is always better to add loss after an amplifier to minimize system noise figure as long as the signal at the amplifier input doe...