Several key points on Bonnie's comments: 1) RTTY contests are human operating events. There is no automatic RTTY that I am aware of. Big difference! It is one thing to find an apparent "hole" to TX into, but are able to back off if it is "busy." ALE would be nearly inoperative during a contest if it is truly monitoring the frequencies. Frequently, you will have wall to wall TX that take up the band.
If you ever think that you can make an argument to preempt human operation with machine, you will lose with the great majority of hams. 2) Having many ALE soundings on one frequency is beginning to sound like packet collision issues where nothing gets through. This can work for military, commercial, MARS, use perhaps where you have a fairly small number of stations that would send at any one time. But if you had even two stations sending on top of each other, wouldn't they trash the ALE "packet?" Then imagine having a lot more than 2! And if you only "sound" once an hour, you won't even know that it did not work. Is this really practical for amateur radio use in a band that has long distance capabilities (sometimes world wide)? 73, Rick, KV9U expeditionradio wrote: > >It would be far less QRM than the average RTTY contest, such as we had >this weekend that took over a large chunk of the ham bands with >"soundings". > >In fact, it is unlikely that you would notice 1000 ALE operators on >the air, unless you tune your VFO to the specific frequency the ALE >operators are using. > >In amateur radio ALE, there is only one pilot channel per ham band >where repetitive sounding (station ID) happens on a regular basis. The >nature of the way ALE works enables many stations to dynamically use >the same channel on a time/space shared basis for various purposes, >such as messaging, calling, sounding, and geo-position reporting. The >global or regional capacity of a single channel for ALE is rather >large. One channel is probabably enough to handle a 1000% increase in >amateur radio ALE use over the next 5 years, if and when it becomes >that popular. > >It would be wonderful if we had 1000 ALE stations on the air 24/7. >Perhaps the ALE On-The-AIR Week event in October will give us some >idea of what is possible with a few hundred stations on at the same >time. We don't really know yet, since this will be the first such event. > >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/ <*> 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/
