Receiving signals, Analog reception, Digital reception – Midland Radio P25 User Manual

Page 25

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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

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