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9 ANALOG CONVENTIONAL SYSTEM
9.4 Using 2-tone to Initiate a Selective Call
9.4
Using 2-tone to Initiate a Selective Call
2-tone signaling uses a pair of 2 different tone frequencies in series. 2-tone is used for a selective call initiated in an Analog
Conventional system.
A series of two different tone frequencies or single tone is used for 2-tone signaling. Tone frequencies between 288.5 Hz
and 3106.0 Hz inclusive are used.
Pressing the Call 1 or Call 2 key causes the transceiver to send the preconfigured 2-tone code.
By using KPG-169D/ KPG-170D/ KPG-175D, the function of Call 1 or Call 2 must be assigned to a PF key, and each key
must be configured as a key to send a 2-tone code.
Configuration using KPG-169D/ KPG-170D/ KPG-175D
•
Assigning Call 1 or Call 2 to the PF keys (
•
Configuring the Call key as a key to send a 2-tone code (
Functions Related to 2-tone Code Encoding
Functions related to 2-tone code encoding are shown below:
Configuration
Duration of 1st Tone
Duration of 1st Tone is the duration of time for 1st Tone Encode when the transceiver sends a 2-tone code.
Duration of 2nd Tone
Duration of 2nd Tone is the duration of time for 2nd Tone Encode when the transceiver sends a 2-tone code.
Duration of Single Tone is the duration of time for Single Tone Encode when the transceiver sends a Single
Duration of Single Tone
Tone.
Single Tone is the function to send the 1st Tone as a Single Tone. If "Yes" is configured for Single Tone, the
Single Tone
1st Tone is sent for the duration of time configured for Duration of Single Tone. In this case, the 2nd Tone is
not sent.
1st Tone is one of the tone frequencies of a 2-tone code, which is sent first. 1st Tone is sent for the duration
1st Tone
of time configured for Duration of 1st Tone.
1st Tone can be configured in the range between 288.5 Hz and 3106.0 Hz.
2nd Tone is one of the tone frequencies of a 2-tone code, which is sent after the 1st Tone. 2nd Tone is sent
for the duration of time configured for Duration of 2nd Tone.
2nd Tone
2nd Tone can be configured in the range between 288.5 Hz and 3106.0 Hz.
If "Yes" is configured for Single Tone, 2nd Tone is not sent.
Gap Time
Gap Time is the unmodulated duration between the 1st Tone and 2nd Tone when sending the 2-tone code.
First Tone Delay Time is the delay time from when the transceiver starts transmitting until the transceiver
actually starts transmitting the 2-tone code.
First Tone Delay Time
The transceiver transmits an unmodulated signal until the amount of time configured for First Tone Delay Time
elapses.
Sidetone is the function to emit the tone of the 2-tone code from the speaker while the transceiver transmits
Sidetone
the 2-tone code.
Configuration using KPG-169D/ KPG-170D/ KPG-175D
Configuring various functions associated with the 2-tone code encoding (
FUNC (K)/Ver 1.20
See
Edit > Key Assignment)
See
Edit > Key Assignment > Call)
Table 9-8 2-tone Encode
Description
See
Edit > 2-tone > Encode)
CONTENTS
INDEX
100
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