Chapter 2 Aprs ® Message; Operation Flow - Kenwood TH-D7A(G) Instruction Manual

The APRS supports a function for transmitting and
receiving a message independent of position reports.
You can transmit a message to a single station only or a
bulletin to all other stations in your group. If you specify
a station, the entered message is transmitted up to 5
times until an acknowledgment is returned.
Each message which you transmit can consist of up to
45 alphanumeric characters. A maximum of 16 incoming
or outgoing messages can be held in the message
memory.

OPERATION FLOW

The following steps should guide you to a good start of
APRS Message operation.
q Press [TNC] to switch ON the TNC.
• " " appears.
w Access Menu 2–M to select band A or B as the
data band {page 3}.
e On the data band select the same frequency as
other stations in your group.
• You may tune to the frequency of an appropriate
digipeater (144.390 MHz in the U.S.A.) {page 13}.
18
APRS MESSAGE
r Access Menu 2–1 to program your call sign
(9 digits max.) {page 7}.
Now you are ready to receive a message from other
stations. Refer to "RECEIVING A MESSAGE" {page 19}.
To transmit a message, proceed to step t.
t If necessary, access Menu 2–B to program a
packet path {page 13}.
y Enter a message (or bulletin) using up to 45
alphanumeric characters {page 21}.
Completing step y causes the transceiver to automatically
transmit the message (or bulletin). When you send a
message (not a bulletin), an acknowledgment should be
returned; "ack0 ~ 9 (or A ~ Z)" appears.