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Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
680-090-2041
Version 5.0
http://www.midlandradio.com
16
4.1.4 Receiving Signals
The radio channel may be configured to receive only analog transmissions, only digital
transmissions or both. If the channel is programmed to receive both analog and digital
signals (mixed mode receive), the radio will automatically switch to the appropriate
mode when receiving the signal.
4.1.4.1 Analog Reception
An analog signal exceeding the squelch
threshold is indicated by a green
Transmit/Receive LED. A relative value
of signal strength is also indicated by
the Received Signal Level icon (
).
If the channel’s analog reception
parameters are met, the received audio
is heard over the speaker.
4.1.4.2 Digital Reception
A decoded digital signal is indicated by
a green Transmit/Receive LED and the
digital Received Signal Type icon
(
). A relative value of signal
strength is also indicated by the
Receive Signal Strength icon (
). If
the channel’s digital reception
parameters are met, the received audio
is heard over the speaker.
More information is displayed about the digital receive signal. While receiving, the talk
group ID is displayed in decimal format on the third line (
), and the source ID is
displayed in decimal format on the fourth line (
). If the received source
ID is in the radio’s address book, the name associated with the source ID will be
displayed (
). If the received signal has status bits set to 0, the direct or
Digital Talkaround icon is displayed to the left of the source ID (
), otherwise the
Digital Receive icon is displayed (
). To the right of the talk group ID is a single
letter indicating the emergency bit is normal (
) or emergency ( ). To the right of the
source ID is a single letter indicating the link control format is set for group call ( ) or
individual call (
).
Figure 4.8 – Analog receive display
Figure 4.9 – Digital receive display