Table of Contents
Advertisement
11
MDC-1200
MDC-1200 is the data system using Audio Frequency Shift Keying (AFSK). In this data system, the transceivers
communicate at a 1200 baud data rate using 1200 Hz and 1800 Hz tones.
Using this data system, a user can send the ID (Own) of the own transceiver as an PTT ID or Emergency ID in the MDC-
1200 format. In addition, a dispatcher can determine whether or not the transceiver is available, or disable the transceiver
to be operated by sending a message to the transceiver.
Note
• The transceiver cannot receive both FleetSync signaling and MDC-1200 signaling on the same channel. Channels using FleetSync
and channels using MDC-1200 must be configured separately. Options other than "FleetSync" must be configured for Optional
Signaling (Analog) of a channel where the transceiver receives an MDC-1200 signaling.
• If "2400 bps" is configured for FleetSync Baud Rate, the transceiver cannot receive the control command for Radio Check/ Stun in
MDC-1200. In addition, the control command for Radio Check/ Stun in MDC-1200 needs to be received on the channel where
"MDC-1200" is configured for PTT ID Type.
• MDC-1200 can be used only in an Analog Conventional system.
11.1
Sending a PTT ID
A PTT ID is an unique identification code of the transceiver transmitted by pressing or releasing the PTT switch.
The administrator or dispatcher can identify by a PTT ID who is using a channel without asking by voice for the caller's
name.
PTT ID Type
PTT ID Type is the type of PTT ID to be sent.
To send an MDC-1200 format ID (Own) as the PTT ID, "MDC-1200" must be configured for PTT ID Type by using
KPG-169D/ KPG-170D.
In addition, an ID (Own) in the MDC-1200 format must be configured. An ID (Own) is a unique ID number of the transceiver
to be used for communications in the MDC-1200 format.
Configuration using KPG-169D/ KPG-170D/ KPG-175D
•
Configuring the PTT ID Type (
•
Configuring the ID (Own) (
Timing for Sending the PTT ID
The PTT ID is sent with the following timing:
BOT (Beginning of Transmit)
The PTT ID is added to a signal at the beginning of the transmission.
FUNC (K)/Ver 1.20
See
Edit > Zone Information > Channel Edit > Page 2)
Edit > MDC-1200 > General 1)
See
PTT
Press
Transmit BOT
Figure 11-1 BOT
Release
CONTENTS
INDEX
126
Advertisement
Table of Contents
