Re: [Discuss-gnuradio] 8-channel receiver

2012-10-01 Thread Anisha Gorur
Thank you very much again! On Sun, Sep 30, 2012 at 6:22 PM, Josh Blum wrote: > > > On 09/29/2012 09:46 AM, Anisha Gorur wrote: > > Thanks Josh, that helps quite a bit! Our sampling frequency is not > > particularly fast, it will only be around 5 MS/S. Right now the send and > > receive frame siz

Re: [Discuss-gnuradio] 8-channel receiver

2012-09-30 Thread Josh Blum
On 09/29/2012 09:46 AM, Anisha Gorur wrote: > Thanks Josh, that helps quite a bit! Our sampling frequency is not > particularly fast, it will only be around 5 MS/S. Right now the send and > receive frame size are still the defaults, 1472 for receive and 1444 for > send. In the notes, it says "to

Re: [Discuss-gnuradio] 8-channel receiver

2012-09-29 Thread Anisha Gorur
Thanks Josh, that helps quite a bit! Our sampling frequency is not particularly fast, it will only be around 5 MS/S. Right now the send and receive frame size are still the defaults, 1472 for receive and 1444 for send. In the notes, it says "to improve receive latency, configure the transport for a

Re: [Discuss-gnuradio] 8-channel receiver

2012-09-28 Thread Josh Blum
On 09/28/2012 02:46 PM, Anisha Gorur wrote: > Thanks Matt! > Do you have any idea for what kind of latency we would expect? Also would The dominating factor in latency here is the gigabit ethernet, this tends to be around 100us. Here are a few notes about that: http://files.ettus.com/uhd_docs/m

Re: [Discuss-gnuradio] 8-channel receiver

2012-09-28 Thread Anisha Gorur
Thanks Matt! Do you have any idea for what kind of latency we would expect? Also would the data be routed through the host? My Radio, We only have a couple months to do this, but we have tried to synchronize USRPs before, so we are aware of some of the problems. Thanks, Anisha On Wed, Sep 26, 2012

Re: [Discuss-gnuradio] 8-channel receiver

2012-09-26 Thread My Radio
One should remember the extremes involved in syncing all USRP'S which will lead to developing a new driver for USRP2. What about the your APP development time?. Are you interested in developing new driver or app ? On Thu, Sep 27, 2012 at 12:04 AM, Matt Ettus wrote: > You can use a gigabit ethe

Re: [Discuss-gnuradio] 8-channel receiver

2012-09-26 Thread Matt Ettus
You can use a gigabit ethernet switch and put all the USRPs on there. You should be able to make USRPs send data to each other. You will of course need to do work to get your algorithms into the FPGA. Matt On Wed, Sep 26, 2012 at 12:38 PM, Anisha Gorur wrote: > I have a quick theoretical questi

Re: [Discuss-gnuradio] 8-channel receiver

2012-09-26 Thread Anisha Gorur
Clarification: This would be using USRP N210, not USRP1, where I know it is possible to have an 8 channel receive or transmit only using a mimo cable. On Wed, Sep 26, 2012 at 12:38 PM, Anisha Gorur wrote: > I have a quick theoretical question. Is there any way to construct an > 8-channel receive

[Discuss-gnuradio] 8-channel receiver

2012-09-26 Thread Anisha Gorur
I have a quick theoretical question. Is there any way to construct an 8-channel receiver using 4 USRPS without data going through the host computer? Basically some kind of way to daisy chain mimo cables (though I know this is not possible), or at least get the same benefits you would receive from d