Hampson Park on Tuesday evenings becoming a regular sked

Tuesday evening fieldwork at Hampson park is becoming a regular event while clubnights at Chells are suspended. Here are some photos from Stevenage and District ARS weekly 2m FM club net as G3SAD/P over the last four weeks. Members meet at 7:30pm with due regard for social distance and have enjoyed seeing and hearing everyone #GOTA2C. All welcome whether licensed or just interested/curious.

UPDATE: As groups of more than 6 are now illegal, we will meet on the air on Tuesdays 145.45 FM from 7pm approx. G3SAD will be in use.

Club Night Talk: Frequency Modulation

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