Hi there!

At the moment I am trying to build a small transceiver in the ISM range
around 433 MHz. For this, I want to use a 12C508 and a small transmitting
and receiving device. There are two companies that offer a complete
transmitter and a receiver in a single IC case.

As always, there are setbacks. The first company does not want to part with
their ICs, instead they want to make an offer for the entire development
(VERY costly). The other company just announced that the first workable
prototypes will be available in February (Thomson CSF).

So at the moment I am looking for some other manufacturer of such ICs,
preferably with a synthesizer, a dual conversion receiver and probably the
modulator/demodulator also included on the IC, preferably controlled by I2C
or similar interface.

Has anybody come across one of these things?

Thanks in advance

Jochen DH6FAZ
jf @ detektor.de