Re: [Discuss-gnuradio] transmitting and receiving indication in USRP

[Mohammed Ramadan]

thanks josh , But when i run the grc file both leds on . how this ?

also when i made calculations for the transmitted signal power it is -6e-5db  and received  signal power is -90 db. which is noise , that means that i am not receiving or transmitting any signal although both leds on.

--- On Tue, 3/19/13, Josh Blum <address@hidden> wrote:

From: Josh Blum <address@hidden>
Subject: Re: [Discuss-gnuradio] transmitting and receiving indication in USRP
To: address@hidden
Date: Tuesday, March 19, 2013, 5:45 PM

On 03/19/2013 03:07 AM, Mohammed Ramadan wrote:
> i have half duplex daughterborad and using gnu-radio flowgraph to
> transmit and receive in alternate time. i founded that while running
> the code both A, C Leds in USRPn210 are on. IS that indicate that i
> send and transmit? if ok how this while i am using half duplex

Led definition, I hope that helps

http://files.ettus.com/uhd_docs/manual/html/usrp2.html#front-panel-leds

> daugher board. Note: i sue python codes for transmitting and
> receiving over the USRP but only one runs at time and other gives me
> error that the address not defined. But both works alternatively. can
> an one send me the illustration for this Problem and how to overcome
> and solve it

You can only have the device open in one process. So your transmit and
receive chains should be in the same process.

-josh

>
>
>
> _______________________________________________ Discuss-gnuradio
> mailing list address@hidden
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>

_______________________________________________
Discuss-gnuradio mailing list
address@hidden
https://lists.gnu.org/mailman/listinfo/discuss-gnuradio