Brett, Stations work split so that their signal will not be obscured by those stations calling them. The station calling cq is transmitting on one frequency and listeing on another. With some transcievers it is possible to listen on both frequencies simultaneously. However, many will only listen on their transmit frequency periodically.
There is on standard split that I am aware of. Hovever, you hear +1, +2, +5 and +7 frequently. Sometimes the split will be down -1, -5 etc. The + and - mean kHz above or below the stations transmit frequency. The station calling cq should transmit the split information frequently, otherwise it is difficult for the calling stations to determine where to transmit. For example VP6DX (Ducie Island) operators are doing a great job if you listen you will hear something like this CQ CQ VP6DX UP 7, or VP6DX QRZ QSX u 25. Sometimes the station provides a range of the split - up 5 to 10, dwn 2 to 3 etc. You will also hear simply up or down - which means direction from the transmit frequency and it is up to the stations calling to choose where they will transmit. Splits for SSB are usually greater than those for CW, RTTY etc. I hope this simple explanation helps. I am sure many others will provied additional information. 73, Robie AJ4F On Fri, Feb 22, 2008 at 12:28 PM, Brett Howard <[EMAIL PROTECTED]> wrote: > I've not ever really worked a split DX station and ever since getting the K1 > I've been working on building up my CW skills. I've gotten to where I can > get the jist of the info at 14WPM w/ 20WPM char speeds. > > > > I've heard frequencies where it seems like nothing is going on and then all > of the sudden 10 stations light up. I'm assuming that this is a split DX > and I'm only hearing half of it. > > > > But anyway it doesn't make much sense to me. So granted a station can > listen to both frequencies at once and I'm sure transmitting station is > probably only listening when he's not transmitting (unless he has two > separate radios and two separate antennas). This just seems like a waste of > bandwidth especially if he's not doing full duplex. > > > > Is there a common split distance so that one may easily find the other half > or do people usually just go digging till they find it? > > > > > > > > _______________________________________________ > Elecraft mailing list > Post to: [email protected] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
