Uniden Bearcat BC75XLT
The BC75XLT is a modern scanner, that combines 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
The scanner can be opened by removing 6 screws. The circuit board containing the key contacts and the display can be removed by unscrewing 4 screws as indicated with the blue arrows.
To access the receiver board, detach the metal shield.
Remove these four 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