Bryan Harber presented a review and hands-on demonstration of the nature and mechanics of Frequency Modulation. Beginning with a demonstration using a signal generator and oscilloscope he visually demonstrated how AM “works” and then explained why FM cant be demonstrated visually the same way. Instead a spectrum analyser was used to do this. Discussion on multiple sidebands, bandwith and “channels”, “capture” and other licence-relevant matters followed. Powerpoint slides
There’s a social side to Amateur Radio too. This year, the SADARS Christmas dinner was held on December 17th at Cinnabar in the Old Town High Street Thanks to Tom Miller and others for organising and to Rob for the photos below.
Ron Pratt, our Contest manager reports that Stevenage and District ARS came 23d in the AFS Superleague for 2018. Thats up from 37th the previous year. The complete set of results can be seen at this link. Ron came 15th out of 380 entrants overall. Looking back over time we seem to be slowly improving.