I wonder if the writer of the original considered this "usual approach" of 300-2.7 Kc most likely came about from the practice of using the same filter to select the sideband in the exciter and defining the IF bandwidth of the receiver.
Rather than on any real spectrum efficiency considerations. As the the 30 Kc wide AM signals.... probably another case of the relatively poor design of the "modern" receiver. I'll keep using my good old Collins receivers..... WB3AWJ Robert A. Poff Loganville, PA. S/V Loon 1983 Hunter 34 Havre de Grace, MD "Lieutenant, target the offending power boat and launch photon torpedoes" ----- Original Message ----- From: "rev. don" <[EMAIL PROTECTED]> > > high frequency hearing". He goes on to allege that an AM signal occupies > > "a bit more spectrum" than two SSB signals, based on the notion that there > > is no need to transmit audio frequency components of the voice that fall > > below 300 Hz, and that the "usual approach" with SSB is to transmit > > frequencies from 300 to 2700 Hz. ______________________________________________________________ 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 Help: http://mailman.qth.net/mmfaq.html Post: mailto:[email protected] To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
