Kenwood TH-D72A Instruction Manual page 50

Problem
The transceiver
switches OFF for no
apparent reason.
The Scan function does
not resume scanning
after the transceiver
detects a signal.
Packet operation
results in no connects
with other stations.
You cannot transmit
any APRS data.
When using a GPS
receiver, you cannot
correctly transmit
position data.
You cannot receive any
APRS data.
40
Probable Cause
The Automatic Power
OFF (APO) function is
ON.
You have selected
"Seek" for Menu No.
150 (Scan Resume).
1 The squelch is open.
2 You did not select the
same transfer rate as
the target station.
1 Beacon is OFF.
2 The squelch is open.
3 The data band is
inactive.
4 The built-in TNC is
OFF.
5 You selected Packet
mode.
The GPS receiver did
not yet start correct
measurement.
You did not correctly
program a group code.
Corrective Action
Access Menu No. 111
(APO) and select your
desired time length or
"OFF".
Select either "Time" (Time-
Operated) or "Carrier"
(Carrier-Operated) for Menu
No. 150 (Scan Resume).
1 Select the correct squelch
level so that the squelch is
opened only when signals
are present.
2 Use HBAUD command
to select the appropriate
transfer rate.
1 Press [BCON] to switch
Beacon ON.
2 Select the correct squelch
level so that the squelch is
opened only when signals
are present.
3 If you have blanked the
data band, press [A/B] or
[DUAL] to active it.
4 Press [TNC] to switch ON
the TNC.
5 Press [TNC] twice so that
only " " appears.
Before starting correct
measurement, the GPS
receiver generates a low-
pitch tone every 10 seconds.
When starting correct
measurement, it generates a
high-pitch tone. (If not using
the internal GPS receiver,
press [F], [MARK] and
select "OFF" ).
Access Menu 3S0 and
program " APK001 " .