All that is need for communications grade AM is 300Hz to 3KHz audio. Just use a 6db/octave rolloff at 3KHz.
There is not much 3KHz or higher energy in the human voice.And we are not supposed to be playing music. Bob Macklin K5MYJ Seattle, Wa. "Real Radios Glow In The Dark" ----- Original Message ----- From: <[email protected]> To: <[email protected]> Sent: Sunday, March 07, 2010 7:02 PM Subject: Re: [AMRadio] AM IARU Region 2 Bandplan > Further response from the ARRL President: > > - - - - - - - - > > Hi Steve, > In the USA we are regulated by the FCC's Rules, not by this band plan. > The > Region 2 band plan cannot require any licensee in the USA to measure > occupied bandwidth for any mode of operation, because it has no > regulatory > force in this country. The Region 2 band plan does not even refer to > measurement of occupied bandwidth. Please don't over-react to the > bandwidth > column. It does not obligate American hams to make any technical > measurements and imposes no burden on us. It is information that is > desired > by Amateurs in some other countries, and that's all. > 73 - Kay N3KN > > - - - - - - - - > > > Steve WD8DAS > > [email protected] > http://www.wd8das.net/ > -------------------------------------------------------------------- > Radio is your best entertainment value. > -------------------------------------------------------------------- > > > > > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Searchable Archives: http://www.mail-archive.com/[email protected]/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: [email protected] > To unsubscribe, send an email to [email protected] with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/[email protected]/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: [email protected] To unsubscribe, send an email to [email protected] with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
