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Programming apco 25 systems, Setting apco 25 sound quality – Uniden BC296D User Manual

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Programming APCO 25

Systems

To program an APCO 25 system, follow the steps in the
appropriate section for conventional or Motorola Trunking.
APCO 25 systems require only 1 additional setting: Sound
Quality.

Setting APCO 25 Sound Quality

Each APCO 25 system has slightly different system settings
that control how the audio is digitized. To get the best sound
quality, you need to match as closely as possible the system’s
settings.

To adjust the sound quality:

1. While monitoring a specific APCO P-25 talkgroup, press

the HOLD/MAN key.

2. Press and hold the 9 key. On Line 1 of the screen you will

see SOUND QULTY: 0050 (for example). This shows
the Sound Quality. The lower the level the better the
Sound Quality.

3. To manually set the sound quality, rotate the scroll bar up

or down. As the threshold adjusts in increments of 100 at
the bottom of the screen watch the Sound Quality level
increase or decrease and continue to rotate the scroll bar
until you have achieved the best Sound Quality level.

Notes: • When APCO P-25 signal is not received, SOUND

QULTY: **** appears on the display.

• You must be receiving an APCO P-25 signal to

make this adjustment

A chart showing the Threshold Adjustment Range is listed
below.

4. Once you have adjusted the Sound Quality to the best

possible level, press E.

Press RSM to exit the Sound Quality Adjustment Mode.

Lower

Mid

Upper

Band

Min

Default

Max

Default

Min

Default

Max

800MHz

33

533

1833

1985

2042

3342

3842

UHF

33

633

1833

1985

2042

3342

3842

VHF

330

930

2130

2147

2264

3464

4064

BC296D(NEW) 10/16/03 6:35 PM Page 56