630m mini SDR receiver active

a minimal SDR receiver using only two chips from analog devices is now active 24/7 on 630m in JN68NT (DJ0ABR).
It contains a preselector (design: http://www.spirat.com.au/vk5zvs/pic55.htm)
followed by a AD8332 pre-amp and a AD8333 I/Q mixer.
Circuit diagram: http://www.dj0abr.de/images/dds/sdr1.png

the sensivity and dynamic range is very promising, the number of spots is 5% better compared to a IC9100.
The IP3 of this circuit is low, but together with vk5zvs's filter the results are very good.