Uniden BC785D - Manual (Page 72)

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APCO Project 25 Reception
APCO Project 25 is a modulation process where voice communications are converted into
digital communications. This conversion is similar to the technology used with digital mobile
phones. There are several types of Project 25 Systems available! Systems Uniden’s
BC785D supports are listed below.
- Conventional – one frequency with digital voice.
- Trunked with analog control channel and digital voice – Many frequencies shared by many
departments and the control channel is analog with digital voice. Control channel operates
at 3600 Baud.
- Mixed mode – trunked (3600) system with an analog control channel alternating / mixing
analog and digital voice communications.
Installing the APCO P-25 card
Note: Do not install the APCO P-25 card with the AC Adapter connected.
The slot for installing the APCO card is located under the Remote Control Terminal on the
rear of the scanner.
1. Turn OFF the scanner. With a screwdriver, take off the
screw at the center and remove the expansion slot door.
2. Insert the APCO card with the label (the side
“APCO P-25 DIGITAL CARD” is printed)
facing up as shown.
3. Insert the ribbon into the space under the slot.
.8V REMOTE
EXPANSION SLOT
DC 13.8V REMOTE
BC785D 11/8/2 1:01 PM Page 68