Re: [Discuss-gnuradio] Does each antenna of USRP N210 can both transmit and receive?

[chongmin]

Hi Weixian,

I am also using a similar configuration. According to the ettus website, I
got the following information, hope this helps. Both antennas can transmit
and receive according to the information, but only one function
(transmit/receive) can be done at a time as the XCVR2450 is half-duplex.

XCVR 2450

The XCVR2450 has 2 quadrature frontends, one transmit, one receive. Transmit
and Receive default to direct conversion but can be used in low IF mode
through lo_offset in uhd::tune_request_t

The XCVR2450 has a non-contiguous tuning range consisting of a high band
(4.9-6.0GHz) and a low band (2.4-2.5GHz).

Transmit Antennas: J1 or J2

Receive Antennas: J1 or J2

    Frontend 0: Complex baseband signal for selected antenna

The XCVR2450 uses a common LO for both receive and transmit. Even though the
API allows the RX and TX LOs to be individually set, a change of one LO
setting will be reflected in the other LO setting.

The XCVR2450 does not support full-duplex mode, attempting to operate in
full-duplex will result in transmit-only operation.

Transmit Gains:

    VGA, Range: 0-30dB
    BB, Range: 0-5dB

Receive Gains:

    LNA, Range: 0-30.5dB
    VGA, Range: 0-62dB

Bandwidths (Hz):

    RX: 15M, 19M, 28M, 36M; (each +-0, 5, or 10%)
    TX: 24M, 36M, 48M

Sensors:

    lo_locked: boolean for LO lock state
    rssi: float for rssi in dBm

Chong Min


Weixian Zhou wrote:
> 
> I am using USRP N210 and the daughter boards are XCVR2450. Does each
> antenna can both transmit and receive, or one antenna can only transmit
> and
> another can only receive?
> 
> -- 
> Regards,
> Weixian Zhou
> 
> _______________________________________________
> Discuss-gnuradio mailing list
> address@hidden
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
> 
> 

-- 
View this message in context: 
http://old.nabble.com/Does-each-antenna-of-USRP-N210-can-both-transmit-and-receive--tp34068501p34154787.html
Sent from the GnuRadio mailing list archive at Nabble.com.