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PACKET
Connect this transceiver to your personal computer via a Terminal Node Controller (TNC). You can send messages or commands to far
away stations, obtain a variety of information via your local bulletin boards, or enjoy other Packet applications. Reference material for
starting Packet operation should be available at any store that handles Amateur Radio equipment.
Note: When the distance between the radio antenna and your personal computer is too close, interference may occur.
PACKET-1
DATA terminal pins
No. Name I/O Function
a
PKD I
Audio signal for packet transmission
b
DE —
PKD terminal ground
c
PKS I
‘L’ is transmitted and the microphone is
muted
d
PR9 O
Detected 9600 (bps) data
e
PR1 O
Detected 1200 (bps) data
f
SQC O
Squelch control signal; Closed: ‘L’, Open: ‘H’
(The default settings can be changed in
Menu 921)
COM terminal pins
No. Name I/O Function
a
RTS O
Request to Send
b
CTS I
Clear to Send
c
TXD O
Transmit Data
d
GND —
Ground
e
RXD I
Receive Data
f
NC —
Non Connect
g
NC —
Non Connect
h
NC —
Non Connect
PACKET MODE
This transceiver has a built-in TNC which conforms to the AX.25
protocol. This protocol is used for communications between
TNCs.
For the commands supported by the built-in TNC, see “TNC
COMMANDS LIST”.
Press [TNC] 2 times to enter PACKET mode.
The following indicators appear on the transceiver display to
show the current TNC status:
Indicator Status
PACKET The TNC is in Packet mode.
STA Packets to be transmitted still remain in the buffer.
CON The TNC is in connection with the target station.
MB
The mailbox in the TNC is being accessed or
connected by the other station.
MA
The mailbox in the TNC holds mail addressed to
you.
12 1200 bps packet transfer rate selected.
96 9600 bps packet transfer rate selected.
Note:
◆ Not all functions available via conventional TNC’s are supported by the TNC
built in this transceiver.
◆ The built-in TNC could be automatically reinitiated when its malfunction is
detected; this does not designate that the transceiver is defective.
◆ To distinguish your various stations or nodes, you can have up to 15
Secondary Station Identifi ers (SSIDs); ex. W6DJY-1 to W6DJY-15. You
always have to put a dash between your callsign and SSID number.
◆ Packet 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 bps operation,
communication errors are frequent.
• When using the built-in TNC, the DATA
terminal is not used.
• The COM terminal is on the rear of the
Operation panel. Connect this terminal to
a personal computer; do not connect a
computer to the PC terminal of the TX/RX
unit.