Hi Ken, The equipment obviously needs to meet the rules of the sub band they are operating in. For example, you can not operate phone modes in the RTTY/Data sub bands. You can not operate RTTY/Data in the phone/image/fax portions of the bands.
And you can not operate wide bandwidth modes such as FSTV on HF due to the restrictions on bandwidth. Some want to claim that there is no current limit in the RTTY/data bands, but if someone tried to use all of a given band, they would be cited by the FCC for not following good amateur practice which is codified in Part 97 as "no non-phone emission shall exceed the bandwidth of a communications quality phone emission of the same modulation type." My rule of thumb is to try and follow the new Region 2 Band Plan from IARU as much as we can, although some things permitted in the BP would be illegal here in the U.S. so you have to temper your usage accordingly. And other than for spread spectrum, we don't have specific co-channel interference rules on HF because we don't have channels. The main thing is that we do not "willfully or maliciously interfere." We are fortunate that with the higher end equipment of today, we can get amazingly close to another station and not even know they are there by using improved filters and phenomenal IMD DR such as available from the big three high performance companies (Elecraft, Flex-Radio, and Ten Tec). 73, Rick, KV9U Ken Meinken wrote: > Rick, > > Do you really mean that anyone should be able to use whatever they > want? Are you really suggesting that fast scan, wideband TV should be > allowed on 20 meters? What about wideband FM? > > Seems to me that bandwidth and co channel interference need to be > restricted, otherwise we will have chaos and the bands will be useless > to all except those running max power with big antennas. > > Ken WA8JXM > > Rick wrote: > >> From my perspective, any group should be allowed to use whatever >> equipment they want on the ham bands, provided that they ID so that >> anyone can determine who they are, and that they are not obscuring the >> information and it can at least be monitored by anyone with similar >> equipment. Winlink 2000 does have some problems with respect to those >> perspectives of mine (and probably most hams). >> >> 73, >> >> > > > Announce your digital presence via our Interactive Sked Page at > http://www.obriensweb.com/sked > > Check our other Yahoo Groups.... > http://groups.yahoo.com/group/dxlist/ > http://groups.yahoo.com/group/contesting > http://groups.yahoo.com/group/themixwgroup > > Yahoo! Groups Links > > > > > > > Announce your digital presence via our Interactive Sked Page at http://www.obriensweb.com/sked Check our other Yahoo Groups.... http://groups.yahoo.com/group/dxlist/ http://groups.yahoo.com/group/contesting http://groups.yahoo.com/group/themixwgroup 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/
