Re: [Discuss-gnuradio] How do I properly disable/enable the WBX receiver with UHD?

[Marcus D. Leech]

On 03/06/2011 12:17 PM, Josh Blum wrote:
> > Using a USRP1 w/ WBX dboard and UHD, what is the proper way to disable (and
> > then re-enable) the receiver?
> I usually don't think to disable the receiver. Running the transmitter
> on demand and always running the receiver is a fine model of use.
>
> Perhaps you could shutoff your demodulator when you transmit? Or reject
> the echo'd packets in a mac layer?
>
> -josh
Also, doing this is not going to be daughterboard-agnostic--not all 
daughterboards can have their RX analog chain disabled this way, as
  far as I know, and also, does the RX chain "forget" its previous 
programming across such a power-down/disable operation?  If it does,
  then you have the added latency of re-configuring the analog hardware 
back to where it was before you shut it down.

A better approach is to simply "ignore" whatever you're receiving while 
transmitting--either by using a valve, or a x0 multiplier somehwere
  in the RX chain, which will effectively cause the demodulator to not 
see any useful signal.