[srsran-users] Outdoor usage with USRP B210

[Antonio Albanese]

Hi guys,

I'm trying to set up srsLTE for outdoor usage in a small area with a USRP
B210 as RF frontend. To this aim, I'm using two amplifiers: MiniCircuits
ZX60-V63+ in TX and ZX60-33LNR-S+ in RX. I'm wondering why I notice some
deterioration of the uplink SNR when I use both amplifiers, while the SNR
is pretty high when I use only the RX amplifier.

The only thing I can think of is that I'm not using any RF filter but I
can't confirm it as I don't have any filter. Besides, I'm not sure if a
filter would be sharp enough to block the interference from the TX
amplifier.

Do you have any HW suggestions that would offer good outdoor performances?

Thank you!
Antonio
ᐧ
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.srsran.com/pipermail/srsran-users/attachments/20211104/a7bad71a/attachment.htm>