Usrp reflections


I know, usrp manual says, that you don’t need TX/RX antenna, but how
about reflections from used TX port and also unused TX/RX + RX ports?
Because i get all the time “failed to set initial frequency” error, if I
run script (probably because of interferences usrp can’t
synchronize both d-boards [in this case RFX-1800])

Is it really OK, that unused ports don’t have terminating resistor and
TX/RX without antenna?

here are quotes from manual:

Do not use a transmit antenna. Plenty of power leaks out of the USRP for
close-range testing. In fact, using a transmit antenna causes a lot of
transmit power to couple into the receiver, reducing receiver
performance and limiting uplink range

Do use a receive antenna. Remember that GSM uses active uplink power
control. The more sensitive your receiver is, the less power the BTS
will need to request from the phone.

This forum is not affiliated to the Ruby language, Ruby on Rails framework, nor any Ruby applications discussed here.

| Privacy Policy | Terms of Service | Remote Ruby Jobs