Thank you for your input. Do you suggest adding a circulator to the system or rather replacing the switch with a circulator?
Best regards, Martin On Mon, Apr 19, 2021 at 3:43 PM Marcus D Leech <[email protected]> wrote: > A circulator can give you an additional 20dB isolation. > > Putting 5d!m into the RX2 port will likely destroy the RX amplifier in the > AD9361. > > Sent from my iPhone > > > On Apr 19, 2021, at 9:12 AM, Martin Elfvelin via USRP-users < > [email protected]> wrote: > > > > > > Hello all, > > > > I am planning on using a USRP B200 in a half-duplex communication system > to communicate with a CubeSat. The TX/RX port will be used for transmitting > and the RX2 port for receiving. The transmitting port will be connected to > a power amplifier with a 60W output, this will in turn connect to an RF > switch which will switch between the TX/RX (transmitting) and RX2 > (receiving). The RF switch has an isolation of ~40-43 dB which means from > the 47.78 dBm transmitted we will have roughly 5-8 dBm reflected to RX2. > Since the SDR is only rated to receive maximum 0 dBm I'm wondering if > someone has any ideas on how to handle this. I'm unsure if this power will > simply fry the board and I should implement a power limiter or if there are > other workarounds. > > > > Appreciate any help you can provide. > > Best regards, > > Martin Elfvelin > > _______________________________________________ > > USRP-users mailing list -- [email protected] > > To unsubscribe send an email to [email protected] >
_______________________________________________ USRP-users mailing list -- [email protected] To unsubscribe send an email to [email protected]
