USAGE: To display all stations for a specific network, click on "by Network"
tab.
Use the pull down menus to choose which network and channel to display.
Press "Show Waveform Availability" to display waveform availability plots.
Click on "by individual station/channel" to display availability for a single
network.station.channel.
Use the pull down menus to search for a specific
station and its channels.
Press "Search Database" button to show
stations that fit search parameters.