SDR Radio

This are 2 of my projects I am busy with. The IF-4232-ttl is based around the FTDI 4232 chip. Schematicly it's alomst the same as the IF-232 but with some extensions. It has a simple build-in audiocard (8Khz) And is very suitable for an analog transciever (like the Kenwood TS690s I have). Working great with the serial port and ACC2. Normally I use this with HRD. The other project is the Arduino-SDR (thought it is a nice name). This is based on the Atmega 2560. The transceiver is a Lima-SDR. My intention is to build a stand-alone tranceiver include waterfall. This moment I am so far to control the SI570 and the bandpassfilters. Because the datalines are I2C was it more then easy to integrate a RTC. But more imporant for the building I do is the capability of using standard products that not-knowledged amateurs can rebuild it easy.Also the software I let it all open source. With standard (but the best) routines. If you like this project and you like to help me with the C-programming don't hestitate to contact me at [email protected]