>Apparently the basic fax mode is only half duplex. The circuit I saw was a >basic >hybrid to separate the two wire telephone line into send/receive and to >sense when the local fax was sending to trigger the radio (VOX)
There is a good discussion of facsimile theory at http://electronics.howstuffworks.com/framed.htm?parent=fax-machine.htm&url=http://home.maine.rr.com/randylinscott/fax.htm The communication between two fax machines is outlined a little more than 3/4 of the way down the page. It appears to be full duplex. 73, Mark N5RFX 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/
