50 - 200 MHz LOW NOISE POWER AMPLIFIER WCA05300A. WCA05300A is a super low noise figure, wideband, and high linearity amplifier with exceptional gain flatness. The amplifier offers typical +/- 0.15 dB gain flatness, 24.0 dB gain, and 0.45 dB noise figure at the frequency range from 50 MHz to 200 MHz. WCA05300B has built-in limiter to protect the amplifier from the input strong interference signal up to 30 dBm. WCA05300A is most suitable for VHF receivers and test and measurement applications.