Uniden Bc785d Trunk Tracker Scanner Owners Manual

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PLAN 1: Use Plan 1 if the last three digits of ALL the frequencies in use end in one of the
following three digits: 125, 375, 625, or 875 (example: 856.1125, 860.7375, 859.6625,
855.8875).
PLAN 2: If the last three digits of frequencies are less than 869.0000 and end in one of
the following three digits (125, 375, 625, or 875) and if ANY other frequencies end in (000,
250, 500, or 750) use Plan 2.
PLAN 3: If the last three digits of ALL the frequencies in use end in one of the following
three digits...

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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...

4. Replace the cover and tighten the screw.
5. Turn on the scanner, and APCO  P25  CARD  INSTALLEDappears on the display.
Installation is completed. You can monitor APCO Project 25 systems.
To use P-25 Card, you must program each setting for Conventional mode or Trunking mode.
- Conventional mode – See “Storing Frequencies into Channels in Menu mode” page 26-27.
- Trunking mode – See “Programming and Receiving Digital and Trunked Systems” page
46-48.
Precautions for Installing the BCi25D Card
1. Do not...

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APCO P-25 Sound Quality Fine Tuning
With each APCO Project 25 system, particularly at 800MHz, the sound quality (C4FM
Demodulation Threshold) may need to be fine tuned specifically for that system.  If the
scanner is not adjusted correctly, the P-25 voice transmissions will sound robotic or
unintelligible.
To adjust the sound quality to match the P-25 system you want to monitor follow these four
steps:
1. While monitoring a specific APCO P-25 frequency, press the /HOLDkey.
Note:In the Trunking mode,...

71 4. Once you have adjusted the Sound Quality to the lowest possible level, press the E
key.
Press the RSMkey to exit the Sound Quality Adjustment Mode.
* To cancel the adjusted threshold level, press  (Decimal) key.
* The adjusted threshold level for the current frequency can be set back to the default
value by pressing and holding the  (Decimal) key.
* When you change the Sound Quality it affects all other APCO P-25 signals in that
same band. (UHF, VHF, or 800MHz)
* You cannot enter the “Sound Quality...

Remote Interface
You can communicate and program your BC785D in numerous ways with peripheral devices
using the Remote Interface Cable port. This radio offers the following modes:
❖PC Control mode
Program and control your scanner from a PC using Uniden’s E-Scanner Software.
❖Clone mode
Clone all the frequencies, trunking talkgroups, and fleet maps programmed into your
scanner to another BC785D scanner or BC250D.
PC Control Mode
To connect Scanner to PC:
Plug the smaller end of the supplied Remote...

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Start Remote Mode and Change Transfer Speed:
Through the Menu system, select 3:SYSTEM  OPTION/
5:PC  CONTROLby rotating the VFOand pressing E. To start
Remote mode, choose from the transfer speed list except for
5:OFF.
A unique feature of the BC785D is that all the front panel keys
as well as the VFOon the radio remain operational in Remote mode.
For information on purchasing cables, connectors, and E-Scanner software to program and
control your BC785D, you can contact the following:
Uniden Parts...

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To connect the Scanner to Scanner:
Plug the smaller end of each of the supplied Remote Interface Cables
into the remote ports which are on the right sides of each of the two
scanners.
Plug the other ends of the cables (DB-9 serial connector) together
using a DB-9 to DB-9 null modem adapter, and a Gender Changer
Cable available at most computer stores.
You can clone all of the programming of one BC785D into another, including frequencies,
talkgroup IDs, alpha tags, delay settings, etc. After connecting...

6. Press SCANon both scanners. 
The data transfer begins from the Master Unit to the Slave
Unit.
During the data transfer, both scanners show the following
displays.
When the data transfer is complete, COMPLETEdisplays.
If the data transfer is not successful, the following error
message will appear.
Note:•To clear ERROR, press  (decimal key).
To exit the Clone mode, press MENUrepeatedly.
Note•Once you have completed the cloning of the scanners, reset the scanners by
turning the scanners OFF and then ON...

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Additional Features
The following additional features are designed for you to customize your scanner. Once
these features have been turned ON or OFF, they will remain as they are set until you reset
them, even if you turn the scanner OFF and then ON again.
Dimmer
To change brightness of the display:
1. Press MENU.
2. Select 3:SYSTEM  OPTION/ 1:DIMMERby rotating the VFOand pressing E.
3. Select one from 1:HIGH,2:MEDIUMor 3:OFFby rotating the VFOand pressing E.
Enter Lock
You can lockout the keypad to...