The SI-9129 is a direct-conversion, wideband, high frequency (HF) tuner with an analog intermediate frequency (IF (baseband) output. It provides a stare bandwidth of 30 MHz, covering the entire HF band continuously. It has 15 dB gain with maximum output power of +20 dBm and an attenuation range from 0 to 31 dB in 1 dB steps. The RF input features a preamp power supply that can be used to run an external, in-line low-noise amplifier. The input also has very robust input protection that can sustain input signal levels of as much as +40 dBm (10 W) without damage.
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