Uniden BC796D APC0 25 Owner's Manual

Also see for BC 796D APCO 25: Owner's manual Owner's manual

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Uniden BC796D APC0 25 Owner's Manual Manual pdf 57 page image

51Programming APCO 25 SystemsTo program an APCO 25 system, follow the steps in the appropriate section for conventionalor Motorola Trunking. APCO 25 systems require only 1 additional setting: Sound Quality.Setting APCO 25 Sound QualityEach APCO 25 system has slightly different system settings that control how the audio isdigitized. To get the best sound quality, you need to match as closely as possible thesystem’s settings.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. The lower the level the better theSound Quality.3. To manually set the sound quality, rotate the scroll bar up or down. As the thresholdadjusts in increments of 100 at the bottom of the screen watch the Sound Quality levelincrease or decrease and continue to rotate the VFO until you have achieved the bestSound Quality level.Notes: • When APCO P-25 signal is not received, SOUND QULTY: **** appearson the display.• You must be receiving an APCO P-25 signal to make this adjustmentA 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.Notes: • To cancel the adjusted threshold level, press key.• The adjusted threshold level for the current frequency can be set back to thedefault value by pressing and holding the key.• When you change the Sound Quality it affects all other APCO 25 signals in thatsame band. (UHF, VHF, or 800MHz)...Lower Mid UpperBand Min Default Max Default Min Default Max800MHz 33 533 1833 1985 2042 3342 3842UHF 33 633 1833 1985 2042 3342 3842VHF 330 930 2130 2147 2264 3464 4064