I have heard that none of these "digital voice" schemes works well for amateur HF still, unless the and conditions are near perfect.
Long live AM !! > There has been a number of experiments on the HF bands over the last > several years using digital formats on phone using 3 KHz or less. AOR > has > had their ARD9800 and ARD9000 boxes out in the ham marketplace for > several years. They digitize the signal and divide it into 36 PSK type > signals and sends it over a typical SSB bandwidth. Maybe, for good > quality AM, maybe more sampling (dividing into PSK signals) would be > required. > http://www.aorusa.com/other.html > > They're pushing SSB use but don't know if anyone has tried them on AM. > Here's a PDF that was written up for QST back in 2003 on digital audio > and amateur radio applications. There was some 20 meter (I believe) on > the air experiments between Ten Tec and some company in France using > some > of the application info. > http://www.arrl.org/tis/info/pdf/x0301049.pdf > ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list 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.
