PLi foorumist ühe kasutaja soovitus hea kohta:
This one is the best one (from USA-Canada)
NESDR SMArt Premium USB RTL-SDR w/ 0.5PPM TCXO, Metal Case, SMA. R820T2 RTL2832U
ebay twenty dollars
great service and fast delivery.
I have also UP converter for HF amateur radio ,
And with it I can also hear USB / LSB on the SAT receiver
NooElec Ham It up V1.3 Listen to HF
I have from ebay (search NESDR SMArt Premium USB RTL-SDR)
The difference between cheap Chinese and this one is that it uses stabilized precision Xtal for
precision frequency.Which is very important for good work.