We have to be pragmatic if we want to get this done. The fact is that bringing digital text emissions to the phone/image subbands on HF is not a popular proposal. We have to think of ways to make this palatable to the majority of Amateur Radio Operators. If there were some verbiage that we could come up with that would make digital text use secondary to phone/image use, then we might be able to sell the idea. We would have to create a regulation that would allow you to use digital text only in conjunction with a Phone/Image qso. Of course if the FCC enacts regulation by bandwidth, then we would do this through bandplanning, but I am not holding my breath. Part 90 has some areas where F3E is primary and F1D is secondary. If F3E causes interference to F1D, then the F1D station must accept that interference. If the F1D station interferes with a F3E station, then the F1D station must cease. Maybe this is a way to introduce digital text into the Phone/Image subbands, if the FCC rejects regulation by bandwidth. This is not the ideal way to approach this, but compromise rarely gives the optimum solution to a problem.
The reason for the popularity of prohibiting digital text emissions in the phone/image bands is because there is a school of though that says it reduces the amount of stations using the subband. There is less contention for bandwidth. 73, Mark N5RFX >We would certainly be using some type of text chat mode on that same >channel with our voice nets---our european net members have already >been doing that with AMD/8FSK-DTM/ARQ/PSK---but our USA net members >are still locked out from fluid chat due to FCC's content/mode >restrictions, left over from the mid-20th century era of radio. Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org Other areas of interest: The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/ DigiPol: http://groups.yahoo.com/group/Digipol (band plan policy discussion) Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/digitalradio/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/digitalradio/join (Yahoo! ID required) <*> To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
