Hi again I just took delivery of a new True RMS multimeter to replace my old one that is a bit knackered(like me) the new one has a frequency range so whilst playing with it I tried that out and according to it the mains frequency is actually really stable I looked at dynamic demand site and my meter at the same time and the readings did not agree so I'm thinking maybe the DD site has got problems Maybe someone's plugged in a noisy bit of machinery on the same mains as there meter my meter and grid watch seemed to agree
Hi again I just took delivery of a new True RMS multimeter to replace my old one that is a bit knackered(like me) the new one has a frequency range so whilst playing with it I tried that out and according to it the mains frequency is actually really stable I looked at dynamic demand site and my meter at the same time and the readings did not agree so I'm thinking maybe the DD site has got problems Maybe someone's plugged in a noisy bit of machinery on the same mains as there meter my meter and grid watch seemed to agree