133 lines
5.6 KiB
Plaintext
133 lines
5.6 KiB
Plaintext
TONE PROGRAMMING
|
|
|
|
IC-2SAT, IC-3SAT, IC-4SAT
|
|
|
|
|
|
General
|
|
|
|
There are three different tone encoders/decoders for the SAT
|
|
series of handhelds. The UT-51 is a CTCSS (sub audible tone also
|
|
known as PL, QC, Channel Guard, etc.) encoder. The UT-50 is a
|
|
CTCSS encoder and decoder. The UT-49 is an automatic DTMF
|
|
(touch-tone) encoder and decoder.
|
|
|
|
All three modules are plug in and easily install inside the
|
|
radios.
|
|
|
|
|
|
UT-51 CTCSS Encoder
|
|
|
|
The UT-51 is a standard CTCSS encoder for use with the IC-2SAT,
|
|
IC-3SAT, IC-4SAT and IC-24AT. It is used to access repeaters
|
|
that have the requirement of having a CTCSS tone.
|
|
|
|
It is programmed by entering the "SET" (function plus SET) mode
|
|
and using the "*" or "#" buttons to step to the CTCSS frequency
|
|
select position and then turning the channel select knob to pick
|
|
the correct frequency. The CTCSS tone is turned on/off by hold-
|
|
ing the function button and depressing the "1" key. A "T" will
|
|
appear in the display when the CTCSS encoder is turned on.
|
|
|
|
|
|
UT-50 CTCSS Encoder and Decoder
|
|
|
|
The UC-50 is a CTCSS encoder and decoder combined for use with
|
|
the IC-2SAT, IC-4SAT, IC-3SAT and the IC-24AT. It is used to ac-
|
|
cess repeaters in the encode mode and used as a selective call
|
|
reception device in the decode mode.
|
|
|
|
The CTCSS frequency is the same for encode and decode. It is
|
|
programmed by entering the "SET" (function plus SET) mode and
|
|
using the "*" or "#" buttons to step to the CTCSS frequency and
|
|
then turning the channel select knob to select the correct fre-
|
|
quency. The CTCSS encode function is turned on by holding the
|
|
function button depressed and depressing the "1" key until the
|
|
LCD shows a "T". The encode/decode function is turned on by
|
|
holding the function button depressed and depressing the "1" key
|
|
until the LCD shows a "T SQL". In the "T SQL" mode you will only
|
|
hear calls and conversation from other stations that are using
|
|
the same CTCSS encode tone on their transmissions.
|
|
|
|
|
|
UT-49 DTMF Decoder (not an option for the IC-24AT)
|
|
|
|
The UT-49 DTMF Decoder is used with the IC-2SAT, IC-3SAT, and
|
|
IC-4SAT. It decodes a series of three DTMF digits and causes the
|
|
receiving radio to beep signaling that a call has been received.
|
|
There are two modes "C SQL" and "PGR" which are indicated on the
|
|
LCD. In the "C SQL" mode one of five (selectable) 3 digit DTMF
|
|
codes are sent to another radio. If the three DTMF digits are
|
|
the same as the ones that the user of the other radio has
|
|
programmed into his radio he will hear your transmission. The
|
|
three DTMF digits are automatically sent at the beginning of each
|
|
transmission. In the "PGR" mode the receiving radio displays the
|
|
three digit number of the station that has called so the station
|
|
being called can tell not only that he has been called but the
|
|
identity of the station that has called him.
|
|
|
|
There are 6 user programmable codes (C0 through C5) that can be
|
|
used to call other stations. Each of these codes may also be
|
|
enabled for decode. This allows the user to store up to five
|
|
codes for other users he wants to be able to call (or page) plus
|
|
his own code (stored in C0). Since each code can be enabled for
|
|
decode as well it is possible to have multiple group call codes
|
|
(each member of the group would program the same three digit num-
|
|
ber and enable it for decode as well as the standard encode).
|
|
|
|
To enable either the "C SQL" or "PGR" mode depress the function
|
|
key and then depress the "2" key until the proper code is dis-
|
|
played on the LCD.
|
|
|
|
To select the three digit DTMF codes that are to be sent depress
|
|
the function key and the "5" key. Rotate the channel selector
|
|
knob so that the C0 through C5 code is displayed. Use the number
|
|
keys to program in a new 3 digit encode sequence. To enable the
|
|
code as decode depress the function key and then the "B" key. A
|
|
"-" will appear in the display indicating that the code has been
|
|
enabled for decode as well as encode. The C0 three digit se-
|
|
quence is always set up as a decode tone since it is the radio's
|
|
primary three digit decode code.
|
|
|
|
After a call has been received in the "PRG" mode it is possible
|
|
to go into the code select mode and look at the "CP" display to
|
|
see the last three digit code that has been received from another
|
|
radio. A user can use this feature to tell who might have called
|
|
him while he is away from his radio. Each valid 3 digit DTMF se-
|
|
quence that is received will cause the CP display to be changed.
|
|
|
|
It is possible for a handheld that only has a DTMF encoder keypad
|
|
to call a user that has a radio with the UT-49 installed. If the
|
|
user with the UT-49 is in the "C SQL" mode then all the other
|
|
user has to do to call him is key his transmitter and send the
|
|
proper 3 digit DTMF code sequence with his keypad. If the radio
|
|
is in the "PGR" mode then the user must key in the proper 3 digit
|
|
DTMF code sequence followed by a "*" and then followed by a 3
|
|
digit DTMF code that he chooses which will identify him to the
|
|
operator of the radio with the UT-49 installed. The radio with
|
|
the UT-49 will display the 3 digit DTMF code that was selected.
|
|
|
|
When a decode sequence has been enabled in either the "C SQL" or
|
|
"PGR" mode in any of the six possible storage locations (C0
|
|
through C5) and the "-" is displayed the sequence is active for
|
|
decode as well as encode. In-other-words if any of the 6 se-
|
|
quences are received the receiver will be activated. This means
|
|
it is possible to have up to six decode sequences active in the
|
|
radio at one time.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|