Jim, The old telephone party line is a poor analogy. Think more along the lines of IM when it comes to high-speed data users all sharing the same frequency at the same time.
73, John - K8OCL >From: "jgorman01" <[EMAIL PROTECTED]> >Reply-To: digitalradio@yahoogroups.com >To: digitalradio@yahoogroups.com >Subject: [digitalradio] 3kHz or 500Hz Re: Updates on effect of FCC R&O >Date: Sun, 22 Oct 2006 13:29:05 -0000 > >A couple of comments. The FCC must consider more than just how fast >data can be sent. It must also consider how to maximize the numbers >of users that can access a finite spectrum without waiting. > >Your point assumes there is queuing system of some sort for that 3 kHz >of spectrum and that people will stand in line to use the frequency. >In amateur radio there is no queuing system, you can only monitor a >frequency until the qso finishes. There is no "grab a number" system >to determine who uses it next. And, since qso's are generally random >length, you may have to wait one minute or 30 minutes. The >traditional way of bypassing this is to move to a clear frequency. > >It seems obvious to me that the FCC has decided that much more >bandwidth for phone users is needed versus bandwidth for CW/RTTY/data >(i.e., narrow bandwidth) users and that the narrow bandwidth segment >should be shrunk. In doing so, they needed to decide how to "best" >use the smaller spectrum, and that part of the determination was how >to minimize the wait time for spectrum for the most users. > >I'm old enough to remember 2, 4, and even 8 party telephone lines. Do >you know how much time was wasted in checking the line to see if it >was not being used? There were lots of times it was quicker to drive >to a neighbors or to town rather than wait for the line to clear. >Frustration to the max! Telephone companies have dealt with >maximizing the use on shared facilities for over a hundred years. >They have sophisticated analysis tools that into account all kinds of >variables. However, cusomter wait times is still the one variable >that drives everything else. > >I'll bet I'm not the only ham who would chose wait time for an open >frequency as being more important than length of qso. Perhaps the FCC >is "encouraging" hams to develop a method of queuing for frequencies >and qso times thereby maximizing spectrum use. I suspect a system >like this would go a long way to letting the FCC expand bandwidths. > >Jim >WA0LYK > >--- In digitalradio@yahoogroups.com, "expeditionradio" ><[EMAIL PROTECTED]> wrote: > > > > There's another way to look at spectrum use. It is better to use a > > 3kHz bandwith for 10 minutes than to use a 500Hz bandwidth for 1 hour > > to pass the same traffic. On HF, with short propagation openings, it > > is better to be able to quickly send the message. Approximately 3kHz > > is the defacto worldwide bandwidth standard for HF communication > > transceivers. > > > > This R&O isn't an issue of FCC making rules for "encouragement" to > > produce narrower bandwidth signals. It is the result of someone at FCC > > that is out of touch with reality. > > > > The Bigger Issue: The freedom to use existing digital worldwide > > standards for HF communications is important for Amateur Radio. > > > > It is very much like the freedom to use existing analog bandwidth > > standards such as SSB and AM voice. Should FCC take take that freedom > > away also, under the guise of "encouraging innovation"? Should hams be > > forced to develop 500Hz bandwidth voice modes? > > > > Or, should a wide range of communications methods be "encouraged" in > > USA like it is in the rest of the civilized world? > > > > Bonnie KQ6XA > > > > > 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/
