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PSR-500

PSR-600

PRO-106

PRO-197

BCD996T

BCT15

BCD396T

BC246T

BR330T

BC95XLT

SC230

BC898T

BC296D

BCT8

BC785D

BC796D

BC780XLT

PRO-2052

BC895XLT

Digital Audio Sound Quality

Uniden Digital radios (BC250D, BC296D, BC785D and BC796D) have an APCO 25 Sound Quality adjustment procedure.  Each APCO 25 system has slightly different system settings that control how the audio is digitized.  Without matching the radio's audio threshold to the radio system, the audio may sound garbled, tinny or even unintelligible.  To get the best sound quality, you need to match as closely as possible the radio system’s settings by performing the procedure below.

Setting APCO 25 Sound Quality:

To adjust the sound quality:

1. While monitoring a specific APCO P-25 talkgroup, press the ▲/HOLD 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 level.  The lower the level the better the Sound Quality.

3. To manually set the Sound Quality, rotate the VFO 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 VFO 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.

5. Press RSM to exit the Sound Quality Adjustment Mode.

Notes:

• To cancel the adjusted threshold level, press the decimal point key.

• The adjusted threshold level for the current frequency band can be set back to the default value by pressing and holding the decimal point key.

• When you change the Sound Quality it affects all other APCO 25 systems in that same band. (UHF, VHF, or 800MHz)

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Last modified: Wednesday November 25, 2020.