On 03/21/2018 09:02 AM, Victor Petrescu via USRP-users wrote:
Hi there.
I have a usrp device, namely B210 and i would like to know if it is
possible to make a dual transceiver. The think is that i want to
receive two different frequencies and transmit them on other two
frequencies.
In other words, i would like to make a repeater of two frequencies. I
managed to do this repeater for one pair RX and TX/RX but i cannot do
it for two pairs of frequencies.
I tried something, but after i run i get this error:
UHD Error:
The receive packet handler failed to time-align packets.
1002 received packets were processed by the handler.
However, a timestamp match could not be determined.
Error: Receiver error ERROR_CODE_ALIGNMENT (Multi-channel alignment
failed)
I get this message because the two RX are working just in MIMO and can
not be separated or what it means?
Thank you very much and i wait for your answers.
The B2xx use an AD9361 RF chip, which uses a common LO for the RX and a
common LO for the TX, which means that you can't tune to two frequencies
with
large offsets. You CAN use DSP tuning if the two frequencies are
close-enough to each other.
More information about that here:
https://files.ettus.com/manual/page_general.html
There is no way to have two distinct multi_usrp objects "talking" to a
B210 -- the streams *MUST* travel together.
Are you coding just with UHD, or with a GR flow-graph?
_______________________________________________
USRP-users mailing list
USRP-users@lists.ettus.com
http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
