I've got an Uniden Bearcat 3300XLT, whicht is equipped with a socked for a
digital card. I's like to connect the reciever to my computer to decode
pocsag / ermes / acars signals. The best way to do this is by connecting an
interface to an unfiltered audio signal from the reciever. (Discriminator
output) As I was thinking a digital interface card also needs such an audio
connection. So I thougt it's possible to create an interface card fo the
250D / 3300XLT which has an unfiltered audio-output or a RS-232/Bluetooth
output with a 4-FSK circuit embedded..

Does anyone have the exact dimensions of the apco-25 card and knows a little
about the digital interface in the scanner, about the pinout for instance..
Maybe it's possible to create a custom card for the scanner and have all
avantages of a discriminator output without having problems with the
warranty.

Reink