HARRIS CORPORATION M803M Manuel D’Utilisation

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Display Panel Functions—CHAPTER 4
Software Version OTP 5.07
M-803 Operator Manual     37
operate your radio as a fully-networked component of
the OpenSky digital network and carry on rich-featured
communications with similarly networked agencies or
subscribers.
At startup, your M-803 automatically selects the
OpenSky Trunked Protocol (OTP) to provide the full
range of features available on your digital voice and
data network.
On the other hand, if your agency cooperates with
several others in a multi-agency network supported by
OpenSky’s IP backbone, all agencies benefit from the
advantages of the network architecture whether or not
they’ve migrated from older analog equipment to
digital OpenSky radios.
For those occasions when you need to communicate
with radios using older protocols (such as conventional
FM), you can manually change your radio’s operating
mode.
Universal Connectivity
When conditions require it, you can re-configure your
M-803, with a simple menu selection, to access
conventional CTCSS analog FM or APCO Project 25
CAI operations. This is especially helpful when you
need to communicate with users from other agencies or
fleets not completely integrated with OpenSky.
 
The principle operating mode currently in use is
the OpenSky Trunked Protocol (OTP). Choose
OTP for full-featured communications  with other
digital equipment connected to the OpenSky
network.
 
From the Mode Selection Menu, you can also
access OpenSky Conventional FM (OCF) with
Continuous Tone Coded Squelch System
(CTCSS).
 
When your Network Administrator initiates a mid-
shift Personality Upgrade or Dynamic Regrouping,
you’ll engage the Over-the-Air Download mode.
Your only indication
that you have logged
on to the network is
the name of your
Talkgroup in the Dwell
Display.