Uniden Bearcat BC125AT / UBC125XLT![]() The UBC125XLT and its US equivalent BC125AT are modern scanners, that combine a broad frequency range with many functions. It's not too difficult to equip this scanner with a discriminator output. The existing earphone socket can be reused, so no drilling is required BC125AT
The scanner can be opened by removing 6 screws. The circuit board containing the key contacts and the display can be removed by unscrewing 2 screws as indicated on the board. To access the receiver board, detacht the metal shield by removing another two screws. ![]() ![]() Unscrew these two..
..and these two screws
![]() ![]() Point 'DISC' carries the unfiltered audio
The 10 k resistor connected to the test point
The unfiltered audio can be found at the test point marked 'DISC'. With the next steps, a discriminator output is made:
![]() ![]() This SMD resistor has to be removed..
..and the wire can be connected to the left solder pad
|