Series of solar bursts beginning 0058  UTC 18 April, 2012 through 0330. For all charts, the frequencies monitored were: Red Trace: 19.320 MHz and Green Trace: 32.586 MHz. The downward frequency sweep nature of these bursts is evident.

0058 ~ weak pair of bursts measuring about 600k K
0227 ~ weak burst measuring about 600k K
0310 ~ stronger series of bursts with peak measuring about 1700k K
0324 ~ strongest burst measuring about 6000k K followed about 1 minute later by a weak 600k K burst
0330 ~ weaker burst measuring about 1800k K