The LOEWE ALPHA-2 is a BTX Decoder card (full-length 8-bit ISA) for use in IBM or comptabile PCs. It appears to date to 1988.
Contrary to the later common Software BTX decoders, the ALPHA-2 is a hardware decoder, utilizing the "ITT LOTTI" decoder ASIC.It supports three different modes of operation:
- CEPT-1 where the decoded CEPT video signal is inserted/looped into the video signal of the PC graphics card, i.e. the ALPHA-2 is situated between CGA/MGA card and the (single) Monitor
- CEPT-2 where the decoded CEPT video signal is displayed on a second monitor, independent from the primary monitor of the PC
- ASCII where the decoded CEPT is converted/reduced to normal ASCII characters which can be shown on the normal PC screen using its regular text display