Joe, Did you see this indicated anywhere in the information that was in the Federal Register? I saw no indication that the PSK signal "MUST" be on some specific location within a channel. I do remember some random discussion about there being one user per channel at the same time, but this doesn't make sense for the efficient use of PSK-31. Being able to multiplex several QSO's at one time is a great advantage in a spectrum environment with little space per channel! If you see ANY reference to this in the Federal Register posting, let me know if I have overlooked it!
73, Sandy W5TVW -----Original Message----- From: Joe Subich, W4TV Sent: Saturday, February 04, 2012 2:45 PM To: [email protected] Subject: Re: [Elecraft] FCC 60m Band Change Rules Published > I guess the only thing not specified is where the PSK-31 signal shows > up above the carrier frequency. Don't most PSK-31 transmissions use > something around 1000 Hz? In the discussion part of the Report and Order, the Commission made it clear that the PSK31 signal *must* be located on the channel center - there were not to be multiple signals per channel creating a "mini PSK31 band". To comply with the Commission's intent, PSK31 should be operated with a 1500 Hz audio tone and the dial set 1.5 KHz below the channel center. If, as in the case of the K3, the PSK generator uses a subcarrier other than 1500 Hz, the dial frequency must be offset as needed to place the resulting PSK31 signal in the center of the assigned channel. 73, ... Joe, W4TV ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
