Colin Thomas G3PSM, who served as president of the Radio Society of Great Britain from 2008 to 2009, was known throughout Region 1 of the IARU as an active advocate for the well-being of the amateur radio spectrum. According to his obituary on the RSGB website, Colin's greatest efforts within the region included the defence of existing allocations and the acquisition of 136kHz and 472 kHz for amateur use. He also pushed for allocations at 5 MHz and for expansion of 7 MHz.

Colin died on Tuesday, 17 February following a short illness.

His involvement with IARU Region 1 included serving as its HF manager from 2005 through to 2008. In 2017, IARU Region 1 presented Colin with the Roy Stevens G2BVN Memorial Award for his service and dedication to international amateur radio.