Kenwood Th-d7a/e Dual Bander Instruction Manual
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1234567891011121314151617181920212223 53 OPERATING TNCThis transceiver has a built-in TNC which conforms to the AX.25 protocol. This protocol is used for communications between TNCs. The TNC accepts data from your personal computer and assembles it into packets. It then converts packets to audio tones which the transceiver can transmit. The TNC also takes audio tones from the transceiver, converts them to data for the computer, and checks for errors in the data. The TNC mainly functions in Command or...
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 54PREPARATION FLOWThe following steps should guide you to a good start of packet operation. The shaded steps indicate operations on your personal computer. First connect the transceiver to the personal computer {page 53}.Note: You may switch Battery Saver OFF {page 49} to prevent the initial portion of a received packet from being missed.qInstall an appropriate communications program on the personal computer. ¥ A variety of freeware or...
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1234567891011121314151617181920212223 55 FULL DUPLEXThis transceiver is also capable of simultaneously transmitting and receiving signals. So, it is possible to transmit audio on the current band while receiving packet data on another band (data band). Press [DUP] to enter Full Duplex mode.¥ ÒDUPÓ appears.To exit Full Duplex mode, press [DUP] again.Note:u You cannot use the Full Duplex function after recalling the VHF band on band B or blanking one band. u When using the Full Duplex function, connect an...
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 56 DX PACKETCLUSTERS MONITOR STACON 96BCON DUP 9 75 DX PacketClusters are networks which consist of nodes and stations who are interested in DXing and contesting. If one station finds a DX station on the air, he (or she) sends a notice to his (or her) node. Then this node passes the information to all its local stations besides another node. This transceiver can display received DX information and hold the latest information on up to 10 DX...
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1234567891011121314151617181920212223 57 SLOW-SCAN TELEVISION (SSTV) WITH VC-H1 Slow-scan Television (SSTV) is a popular application for transmitting still images over the air from one station to another. The VC-H1 is an optional portable unit which includes all requirements for SSTV; a slow-scan converter, a CCD camera, and a LCD monitor. You can transmit or receive full-color images just by connecting the VC-H1 to this transceiver. For further information on the VC-H1, see the instruction manual for...
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 58 5Repeat steps 3 and 4 to enter up to 8 digits (call sign), 9 digits (message), or 10 digits (RSV report). ¥ Pressing [OK] after selecting the last digit completes the programming. ¥ To complete programming after entering less than the maximum digits, press [OK] twice. ¥ Each press of [ESC] causes the cursor to move backward. ¥ Pressing [A/B] deletes the digit at which the cursor is blinking. 6Press [MENU] to exit Menu mode. You can also use...
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1234567891011121314151617181920212223 59 SELECTING COLOR FOR CALL SIGN/ MESSAGE/ RSVYou can select white (default), black, blue, red, magenta, green, cyan, or yellow to color the call sign, message, or RSV report. 1Press [MENU] to enter Menu mode. 2Press [3], [2] to select Ò3Ð2 (MY CALL COL)Ó, or [3], [4] to select Ò3Ð4 (MESSAGE COL)Ó, or [3], [6] to select Ò3Ð6 (RSV COLOR)Ó. 3Press [UP]/ [DWN] to select the color. 4Press [OK] to complete the setting. 5Press [MENU] to exit Menu mode. STACON PACKET...
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 60VC-H1 CONTROLIf you have another transceiver that has the Tone function, you can use it as a remote control for the VC-H1. Transmit a subaudible tone from the remote control to this transceiver connected with the VC-H1 for more than 1 second. Then this transceiver causes the VC-H1 to capture an image, executes the superimposition, and transmits the image to the target station. You must select the same tone frequency on both transceivers;...
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1234567891011121314151617181920212223 61 AUTOMATIC PACKET/ POSITION REPORTING SYSTEM Ò The Automatic Packet/ Position Reporting System (APRS Ò) is a software program and registered trademark of Bob Bruninga, WB4APR. He has made packet communications much more exciting than before. This program allows you to track mobile stations on a map which you recall on a computer screen. Imagine seeing one mobile station moving on the map which can be scaled from .5 to 2000 miles. You also may be tracked on the...
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 62OPERATION FLOWThe following steps should guide you to a good start of APRS operation.qPress [TNC] to switch ON the TNC. ¥Ò Ó appears. wAccess Menu 1Ð4Ð1 to select band A or B as the data band {page 55}. eOn the data band select the same frequency as other stations in your group. ¥ You may tune to the frequency of an appropriate digipeater {page 72}. rAccess Menu 2Ð1 to program your call sign (9 digits max.) {page 66}. tIf you have connected a...