[digitalradio] Modes - What are they and What about New Developement??

2009-02-22 Thread Gmail - Kevin, Natalia, Stacey Rochelle
Hi All, I am hoping with the number of members in this group that someone might be able to answer my question. Many years ago, as we know radio started off with CW, then AM was developed, with an improvement to only use one part of the AM carrier to produce SSB with carrier or SSB suppressed

Re: [digitalradio] Modes - What are they and What about New Developement??

2009-02-22 Thread Rick W
Hi Kevin, Perhaps it might help to use the ITU three symbol Classification of Emissions? The first symbol considers the main carrier modulation with letters such as A = DSB AM, B = independent sidebands, etc. This would give you the AM modes and the F = FM and G = PM modulation types. Then

RE: [digitalradio] Modes - What are they and What about New Developement??

2009-02-22 Thread Rud Merriam
PM To: digitalradio@yahoogroups.com Subject: [digitalradio] Modes - What are they and What about New Developement?? Hi All, I am hoping with the number of members in this group that someone might be able to answer my question. Many years ago, as we know radio started off with CW, then AM