Right Al, it takes 10 kHz of RF bandwidth with A.M. to produce 5 kHz of audio bandwidth after demodulation.
I thought my comment was clear in context. The thread was about the desired/necessary audio bandwidth. My apologies for the confusion. I should have said "audio bandwidth". 73, Ron AC7AC -----Original Message----- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Al Lorona Sent: Wednesday, August 07, 2013 5:48 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] [K3] Hearing aids, meet K3 That is the common misconception. Actually most AM stations go out to at least 10 and often 12 kHz (look on your P3). The exceptions are the stations transmitting an HD signal -- they are necessarily band-limited to 7 kHz. I boycott HD stations for that reason. I can tell the difference on a good wideband receiver. I know this because I went through it in the pre-HD days with my senior advisor who had the common misconception. Even after I proved him wrong (by actually telephoning the chief engineers of KFI and KNX) he still gave me a 'D' on my senior project. Sour grapes. Al W6LX A recent report in "Radio World" notes that most analog A.M. broadcast >receivers today have a bandwidth of less than 5 kHz. > > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
