... we in England have two AM frequencies around this area used often, those being 3.615 and 3.625, there are nets on Saturdays at 08.00 GMT onwards till about 10.00 also in the evenings and day during the week on these frequencies. Hams here often using transmitters such as T-1509 and WS-53 etc, these sets quite capable of reaching the US in favourable conditions. This morning on the AM net on 3.615 we were joined by a few European stations including one from Germany who was a good 5/8 signal. a distance of roughly 450 miles across land so maybe possible over the sea to reach much more. It is also possible in the UK to hear, but not read, many US AM stations on 75m 3885 or thereabouts.
Maybe 3615 and 3625 would be two good frequencies to keep an ear on, throughout the evening hours until about 0800 GMT, after the 15th of December.Interesting on the German AM stations. Didn't someone post a message here recently saying that Germany has enacted a bandwidth limit on all phone signals that limits the total bandwidth to that of SSB?
There has been a 6.0 kHz bandwidth limit in Canada for decades but I have yet to hear of a Canadian AM'er being busted for exceeding it. Maybe that's the situation in Germany, too.
A European-wide bandwidth limit wouldn't surprise me though, since the EU is notorious for coming up with all kinds of absurd regulations and petty restrictions. EU bureaucrats even told French cheesemakers that they could no longer make many of their world-famous cheeses the traditional way, because that would be in violation of new health regulations.
As for AM broadcast harmonics, I remember when I worked as CE of a 1kw daytimer, we had a 2nd harmonic that was clearly audible all the way across town. The boss assured me that it still fell within the FCC's limits, and the outside engineering firm that did our annual proofs never indicated anything to the contrary.