DUAL TONE SQUELCH SYSTEM (DTSS)
DTSS
is
available only
on
transceivers equipped with a
DTMF keypad.
DTSS provides a more refined method than CTCSS to
selectively communicate with specific stations. A total of
1000 3-digit DTMF (Dual Tone Multi-Frequency) codes
are available to be used as addresses for stations with
which you wish to communicate. These codes can be
changed easily and regularly
as
required. Due to the
quantity of different codes, large networks can be set up
that use DTSS for selective calling
and
receiving. By
including group codes
in
the network plan, sub-groups
within the network can be contacted without disturbing
others monitoring the same frequency.
If
your needs are simpler, DTSS also serves a useful
purpose when you only wish direct communication with a
few close friends
on
your favorite frequency. A good
example of this application
is
at hamventions when a
particular frequency can be virtually unusable due to
overcrowding. If your group switches ON DTSS, your
squelch only opens when a call with your private address
or the group address
is
received. If no signal is received
for more than 2 seconds after DTSS has opened the
squelch, the squelch then closes. Anytime you wish
to
monitor
all
activity
on
the channel, you simply switch
OFF
the DTSS function.
ACTIVATING DTSS
To switch
ON
the DTSS function, press [F], [2].
•
"DT"
appears when DTSS is ON.
DT
APO
s
• Each time this key combination is pressed, DTSS
toggles ON and OFF.
Note:
•
When
[F],
[2]
is pressed with Page
ON,
Page is
automatically switched
OFF,
and
DTSS
is
switched
ON.
~
Both DTSS status
and
a DTSS code can be stored
in
a
memory channel
or
the Call channel. Further, when
recalling either
a memory channel
or
the Calf channel with
DTSS status ON while using the
VFO
with Page switched
ON,
Page
is
given priority
and
the DTSS status switches
OFF.
~
The
microphone
is
inhibited while the DTSS code is
transmitted.
• It's advisable to turn OFF Battery Saver when you use
DTSS.
41
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