[AMRadio] Local neighborhood radio noise

2009-09-27 Thread sbjohnston
I've noticed a growing trend of 100w-class AM and SSB stations reporting less success in recent years. I have a theory that this is due to the ever-climbing local noise levels in our neighborhoods. This noise will tend to mask the weaker signals at the receive end, resulting in fewer possible

Re: [AMRadio] Local neighborhood radio noise (was AM 75- 80 meters)

2009-09-27 Thread sbjohnston
Dennis wrote: On the broadcast frequencies, most of the noise comes from 'Hybrid Digital', or HD implementation. Some of that trash on the ham bands is overmodulated PSK-31 or other digital mode comms stuff. The rest is good old hash from crappy appliances and bad electrical distribution grid.