$schemamarkup = get_post_meta(get_the_ID(), 'schemamarkup', true); if(!empty($schemamarkup)) { echo $schemamarkup; }

How to Install Realtek RTL-SDR Driver on Gnu/Linux Distros

GNU/Linux Realtek RTL-SDR Driver Setup – Step-by-step Guide

Hi! The Tutorial shows you Step-by-Step How to Install Realtek RTL-SDR Wireless Driver in GNU/Linux Desktops.

And RTL-SDR (RTL2832U) is a very cheap USB Dongle that can be used as a Computer based Radio Scanner for receiving Live Radio Signals in your Area (no internet required).

Finally, depending on the particular Model it could receive frequencies from 500 kHz up to 1.75 GHz.

How to Install Realtek RTL-SDR Driver in Linux - Featured

GNU/Linux Realtek RTL2832U RTL-SDR Driver Installation Guide