Kenwood TM-D700A Instruction Manual

Also see for TM-D700A: Instruction manual Operation instruction Service manual

31OPERATING TNCThis transceiver has a built-in TNC which conforms tothe AX.25 protocol. This protocol is used forcommunications between TNCs. The TNC accepts datafrom your personal computer and assembles it intopackets. It then converts packets to audio tones whichthe transceiver can transmit. The TNC also takes audiotones from the transceiver, converts them to data for thecomputer, and checks for errors in the data.The TNC mainly functions in Command or Conversemode. First learn the difference between these twomodes.• Command modeWhen you select Packet mode, the TNC enters thismode. A “cmd:” prompt appears on the computerscreen. You can type commands from the computerkeyboard to change the settings on the TNC. Whenin Converse mode, press [Ctrl]+[C] on the keyboardto restore the Command mode.• Converse modeThe TNC enters this mode when a linkage with thetarget station is established. On the computerkeyboard, type an appropriate command and ifnecessary a message, then press [Enter] or[Return]. What you type is converted into packetsand transmitted over the air. When in Commandmode, type CONVERSE to restore the Conversemode; you can also type CONV or K instead.For the commands supported by the built-in TNC, see“TNC COMMANDS LIST” on page 41.The following indicators appear on the transceiverdisplay to show the current TNC status:The built-in TNC includes a simple mailbox to directlyreceive mail from other stations; the mailbox holds up toapproximately 110 kilobytes (KB) of information. Youcan read mail from the mailbox by sending a commandfrom your personal computer {page 47}.Note:uNot all functions available via conventional TNCs are supported bythe TNC built in this transceiver.uThe built-in TNC could be automatically reinitiated when itsmalfunction is detected; this does not designate that the transceiveris defective.uTo distinguish your various stations or nodes, you can have up to 15Secondary Station IDentifiers (SSIDs); ex. WD6BQD-1 to WD6BQD-15. You always have to put a dash between your call sign and SSIDnumber.uPacket operation, easily affected by transmit and receive conditions,requires a full-scale S-meter reading for reliable communication.When the S-meter reads less than maximum during 9600 bpsoperation, communication errors are frequent.rotacidnI sutatSTKPCNT .edomtekcaPnisiCNTehTATS ehtniniamerllitsdettimsnartebotstekcaP.reffubNOC tegratehthtiwnoitcennocnisiCNTehT.noitatsDOBM desseccagniebsiCNTehtnixobliamehT.noitatsrehtoehtybdetcennocroLIAM liamsdlohCNTehtnixobliamehT.uoyotdesserdda0021 detcelesetarrefsnartspb00210069 detcelesetarrefsnartspb0069