User manual KENWOOD TH-22A

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Manual abstract: user guide KENWOOD TH-22A

Detailed instructions for use are in the User's Guide.

[. . . ] With a portable computer, allows you to enjoy Packet operation quite easily. · Includes a program for dealing with data formats supported by Automatic Packet/ Position Reporting System (APRS®) . · Is capable of receiving packet data on one band while receiving audio on another band. · Contains a total of 200 memory channels to program frequencies and other various data. [. . . ] 1 2 3 4 5 6 7 8 9 10 11 12 Note: x If a signal is received while APO is ON, the timer begins counting again from 0. x The APO timer does not operate while Tone Alert or any scan is being used. 13 14 15 16 17 18 19 20 21 22 23 49 POWER-ON MESSAGE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 6 Press [MENU] to exit Menu mode. You can also use the keypad to enter alphanumeric characters in step 3. For example, each press of [TNC] switches entry as A, B, C, a, b, c, then 2. Press [ENT] to switch among the special ASCII characters. Each time you switch the transceiver ON, "HELLO !!" appears and stays for approximately 1 second. You can program your favorite message in place of the factory default. 2 Press [1], [1], [1] to select "1­1­1 (PWR ON MSG)". · The display for entering a message appears; the first digit blinks. TRANSCEIVER LOCK This function prevents accidental changes, or unauthorized individuals from changing the transceiver settings. Press [F] (1 s) to switch the function ON (or OFF). · A key icon appears when the function is ON. STA CON 3 Press [UP]/ [DWN] to select a character. · You can enter alphanumeric characters plus special ASCII characters. 5 7 PACKET96BCONDUP 9 4 Press [OK]. · The cursor moves to the next digit. 5 Repeat steps 3 and 4 to enter up to 8 digits. · Pressing [OK] after selecting the 8th digit completes the programming. · To complete programming the message after entering less than 8 digits, press [OK] twice. · Pressing [A/B] deletes the digit at which the cursor is blinking. You may want to use the Tuning control or [UP]/ [DWN] in Transceiver Lock mode. Access Menu 1­5­4 (TUNE ENABLE) and select "ON". 50 TX INHIBIT You can disable the transmit function to prevent unauthorized individuals from transmitting, or to eliminate the risk of accidentally transmitting by yourself. The TNC also takes audio tones from the transceiver, converts them to data for the computer, and checks for errors in the data. First learn the difference between these two modes. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 To PC jack PG-4W To COM port · Command mode When you select Packet mode, the TNC enters this mode. You can type commands from the computer keyboard to change the settings on the TNC. When in Converse mode, press [Ctrl]+[C] on the keyboard to restore the Command mode. 2. 5 mm (1/10") 3-conductor plug RXD2 DB-9 connector Pin No. t e Pin Name GND TXD RXD · Converse mode The TNC enters this mode when a linkage with the target station is established. On the computer keyboard, type an appropriate command and if necessary a message, then press [Enter] or [Return]. When in Command mode, type CONVERSE to restore the Converse mode; you can also type CONV or K instead. TXD1 GND3 1 2 3 w To RXD on PC To TXD on PC To GND on PC Note: When the built-in TNC is ON, some internal frequency relationships may induce an internal heterodyne and cause the squelch to be opened unexpectedly. The default is "NORMAL". For the commands supported by the built-in TNC, see "TNC COMMANDS LIST" on page 99. 53 PREPARATION FLOW 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 The following steps should guide you to a good start of packet operation. 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. y To select 9600 bps as the transfer rate from/to the target station, type HBAUD (or HB) 9600 and press [Enter] or [Return]. The default is 1200 bps. · You must select the same transfer rate as the target station. q Install an appropriate communications program on the personal computer. · A variety of freeware or shareware programs can be obtained in various ways. [. . . ] You can also specify a class identifier A, C, H, I, L, M, or T to display the status of only the desired command class. DISPLAY H. DISPLAY DISP -- -- A (ASYNC): RS-232C port parameters C (CHAR): Special TNC characters H (HEALTH): Counter parameters I (ID): ID parameters L (LINK): TNC-to-TNC link status M (MONITOR): Monitor parameters T (TIMING): Timing parameters DWAIT ECHO DW E 30 ON 0 ~ 25 0 ON/ OFF FIRMRNR FIR OF F ON/ OFF FLOW FRACK GBAUD GPSSEND GPSTEXT F FR GB GPSS GPST ON 3 4800 -- $PNTS ON/ OFF 0 ~ 250 4800/ 9600 0 ~ 159 characters 0~6 characters Specifies the interval from no carrier detection until execution of transmission. The other station sends a notice (packet) to you if it is not ready to receive data. When ON, receiving such a notice causes the TNC to suspend transmission until it receives a "ready" notice. [. . . ]

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