Kenwood TH-D72A Mode D'emploi page 49

Problem
Transceiver transmits
without pressing [PTT].
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.
When transmitting
in full duplex mode,
another signal is being
received at the same
time.
You cannot transmit
any APRS data.
Probable Cause
VOX function is ON.
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.
You are receiving the
transmitted signal of
your 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.
Corrective Action
Access Menu No. 134 (VOX)
and select "Off".
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.
Change your settings to
a transmit frequency that
does not receive the signal,
or change the receive
frequency.
Example frequency setting :
Transmit frequency of
146.000 MHz and receive
frequency of 439.600 MHz
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.
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