USRP2 or N200/N210?


#1

Hello,

Anyone using an Ettus USRP2 with SatNOGS. I see the concerns with wide IP bandwidths
and PI 3 MIPS/FLOPs.

Thank you. Using a RTL-SDR.com but would sure like to use the UBX noise figure. HI

73,

Guy W6MSU
Station 754


#2

Based off https://gitlab.com/librespacefoundation/satnogs/gr-satnogs/blob/master/python/hw_settings.py

I think the USRP2 is supported.


#3

https://photos.app.goo.gl/MFDbr2fiRR6HCK3AA

Thank you. I’ll have to give it a try.

73,

Guy W6MSU
Station 754


#4

Yes, the ettus devices can sample low enough that the rpi usb is not an issue (I run a b200 mini on my station most of the time)

cheers!


#5

that said - I’ll be interested in your results with the rtl-sdr.com dongle vs b200 - so far for our work in vhf/uhf I’ve found no noticeable difference. (that will likely change when we tackle higher bands)


#6

Thank you. Now there’s a thought. Plug in a B100 (USB2.0) and see if UHD wants to play.

The USRP2/N200 with the UBX daughter board is less than 1 dB noise figure, and real shielding.

TU 73,

Guy - W6MSU
Station 754


#7

From the datasheet, it looks like the B200 mini has an NF <8dB. How much worse can the R820T be?