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7
4. Press
8
or
9
, or rotate
CH
to select a
tone frequency from the list on Page 7.
5. Press
or
PTT
to store the settings
and exit.
75+0)"6*'"%6%55"610'5
You can use a transmit tone, a receiver tone,
or both. For example, if the selected repeater
uses a receive only CTCSS tone, enable the
transmit tone but not the receive tone on the
HTX-420.
To enable only the
transmit
(TX) tone
, press
F
+
T.SQL
(
1
).
J
JJ
J
appears above the displayed
frequency. Press
PTT
to store the setting.
To enable only the
receive
(RX) tone
, press
F
+
T.SQL
(
1
) again.
IG
IGIG
IG
appears above the
displayed frequency. Press
PTT
to store the
setting.
To enable both the
transmit
(TX) and
receive
(RX) tones
, press
F
+
T.SQL
(
1
) again.
JIG
JIGJIG
JIG
appears above the displayed frequency.
Press
PTT
to store the setting.
When you store a frequency in one of the 100
memory locations, all settings chosen for the
selected frequency are stored as well. Before
you store a frequency (see “Storing a
Transmit/Receive Frequency” on Page 5),
select the Subaudible Tone Frequencies first.
75+0)"&6/( "%1& '
DTMF (Dual-Tone Multi Frequency) tones
are those typically associated with the use of
your telephone. Your transceiver can
transmit up to 16 separate DTMF tones and
store a sequence of tones in up to 6 different
memory locations (d1 to d6). You can use
DTMF to transmit to a land-patch that is
connected to a telephone line. This also lets
you enable or disable certain repeater
functions, which is handy if you are involved
with repeater administration. You can also
signal to another radio equipped to receive
DTMF codes.
1. Repeatedly press
6
or
7
until
ZJC<
ZJC<ZJC<
ZJC<
appears. If no DTMF codes are stored in
memory,
UýUýUýýUýUýU
UýUýUýýUýUýUUýUýUýýUýUýU
UýUýUýýUýUýU
and
Zýb
ZýbZýb
Zýb
appear.
2. Repeatedly press
8
or
9
, or turn
CH
to select the desired DTMF memory
location.
3. Enter up to 16 characters (
0
through
9
,
and
A
through
F
; E=
∗
, F=
#
). The radio
sounds a short beep for each entry, and
a long beep to indicate the sixteenth
character. If you try to enter more than
16 characters, the radio sounds two
short beeps.
4. To confirm the DTMF characters, hold
down
F
and rotate
CH
, or press
8
or
9
to scroll it. If you make an entry error,
press
F
+
CLR
(
6
) and repeat Step 3
again.
To enter another DTMF sequence,
repeat Steps 2–4.
5. Press
or
PTT
to store the sequence
in the selected memory location. The
transceiver returns to the VFO mode.
64#05/+66+0)"#"&6/("%1&'
You can transmit a DTMF code from stored
memory or by direct entry.
64#05/+66+0)"#"&6/("%1&'"
(41/"5614'&"/'/14;
1. Press
F
+
D.SEL
. The last stored DTMF
sequence appears.
2. Repeatedly press
8#
or
9
, or rotate
CH
until you see the desired DTMF
memory location. Then press
PTT
to exit.
3. Select a transmit frequency (see
“Selecting Frequencies (Direct Tuning)
and Receiving Transmissions” on
Page 4).
4. Press
PTT
+
to transmit the selected
DTMF code using the selected
frequency.
64#05/+66+0)"#"&6/("%1&'"
75+0)"&+4'%6"'064;
1. Hold down
PTT
(Push to Talk).
2. Enter each character of the desired
DTMF code in order. The DTMF tone
sounds to confirm your entry.
±
±±
±
75+0)"6*'"64#05%'+8'4"9+6*"
2#%-'6"4#&+1
You can connect your transceiver directly to
a packet radio terminal node controller
5WDCWFKDNG"6QPG"(TGSWGPEKGU"**\+
67.0 118.8 183.5
69.4 123.0 186.2
71.9 127.3 189.9
74.4 131.8 192.8
77.0 136.5 196.6
79.7 141.3 199.5
82.5 146.2 203.5
85.4 151.4 206.5
88.5 156.7 210.7
91.5 159.8 218.1
94.8 162.2 225.7
97.4 165.5 229.1
100.0 167.9 233.6
103.5 171.3 241.8
107.2 173.8 250.3
110.9 177.3 254.1
114.8 179.9
±
±±
±
"016'"
±
±±
±
"
You can also hold down PTT and enter the first
character of the DTMF sequence. Then, release
PTT and continue to enter the balance of the
characters as long as you enter each character
within one second of the proceeding character
entry.