We got the patch anetnna, CHIP and LNA from Outernet Store(very fast delivery).
We are distributor of Nooelec RTL SDR and RTL SDR Blog SDRs(as Radiojitter.com in India) ,so we have SDRs and LNA (Outernet LNA is Nooelec Make)in stock.
Now we are working some type of dish+helical antenna (inspired by good result from other users) to boost SDR. 7 dB is the best signal what we got so far. We believe with higher SNR , we would have low BER and thus can have error free higher packet counts.