Local input plugin

<h1>Local input plugin</h1>

<h2>Introduction</h2>

This input sample source plugin gets its samples from a Local Sink channel in another device set.

<h2>Interface</h2>

![SDR Local input plugin GUI](../../../doc/img/LocalInput_plugin.png)

<h3>1: Start/Stop</h3>

Device start / stop button.

  - Blue triangle icon: device is ready and can be started
  - Green square icon: device is running and can be stopped

<h3>2: Record</h3>

Record I/Q stream toggle button

<h3>3: Frequency</h3>

This is the center frequency in Hz sent from the Local Sink channel instance and corresponds to the center frequency of reception. The sub kHz value (000 to 999 Hz) is represented in smaller digits on the right.

<h3>4: Stream sample rate</h3>

Stream I/Q sample rate in kS/s

<h3>5: Auto remove DC component</h3>

Filters out the possible DC component. You use this if yoy notice a spike in the center of the pass band.

<h3>6: Auto make I/Q balance</h3>

Re-balances the I and Q channels. You use this if you notice ghost artifacts symmetric around the center frequency.