https://g3xbm-qrp.blogspot.com/2014/11/using-w5olf-500mw-10m-wspr-beacon-today.html?showComment=1415737792235
Roger G3XBM's (Mainly) Amateur Radio Blog: Using the W5OLF 500mW 10m WSPR beacon today
https://g3xbm-qrp.blogspot.com/2014/11/w5olf-beaconing-again-on-10m-wspr-500mw.html
Roger G3XBM's (Mainly) Amateur Radio Blog: Using my W5OLF beacon again on 10m WSPR (500mW)