Re: [Discuss-gnuradio] max capacity per USB channel

2007-04-09 Thread George Nychis
Thanks for the help Eric :) I checked in to my branch a first pass on allocating and deallocating the channels from the specifications in usrp_server.mbh. Seems pretty straight forward. Feedback of course! - George ___ Discuss-gnuradio mailing l

Re: [Discuss-gnuradio] max capacity per USB channel

2007-04-09 Thread Eric Blossom
On Mon, Apr 09, 2007 at 05:42:30PM -0400, George Nychis wrote: > > > Eric Blossom wrote: > >I think there's some confusion here. When a user requests an rx or tx > >channel with (cmd-allocate-channel invocation-handle > >capacity-reservation), they are given a channel on an exclusive basis. > >T

Re: [Discuss-gnuradio] USRP Schematics

2007-04-09 Thread BobF
Have these files been posted yet? I just tried looking at them and they're still clipped off. Also, any chance we can get ALL those files in one ZIP file. Downloading one at a time stinketh. -Bob COMINT wrote: > > Thanks Matt > > It does seem however that the ps/pdf files in USRP rev 4.2 fo

Re: [Discuss-gnuradio] max capacity per USB channel

2007-04-09 Thread George Nychis
George Nychis wrote: - If a channel allocates capacity on a channel, if a port allocates capacity on a chanel, ... sorry ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] max capacity per USB channel

2007-04-09 Thread George Nychis
Eric Blossom wrote: I think there's some confusion here. When a user requests an rx or tx channel with (cmd-allocate-channel invocation-handle capacity-reservation), they are given a channel on an exclusive basis. The returned channel number is given in the response-allocate-channel message.

Re: [Discuss-gnuradio] max capacity per USB channel

2007-04-09 Thread Eric Blossom
On Mon, Apr 09, 2007 at 04:24:23PM -0400, George Nychis wrote: > Eric Blossom wrote: > >Uhh, 30 requests of .5 is only 15MB/s, so there would be no problem > >with additional requests up to an additional 17MB/s. The tx and rx > >channels are allocated indepently of each other, though all capacity

Re: [Discuss-gnuradio] max capacity per USB channel

2007-04-09 Thread George Nychis
Eric Blossom wrote: Uhh, 30 requests of .5 is only 15MB/s, so there would be no problem with additional requests up to an additional 17MB/s. The tx and rx channels are allocated indepently of each other, though all capacity requests are changed against the same pool. Right, it was part of the

Re: [Discuss-gnuradio] max capacity per USB channel

2007-04-09 Thread Eric Blossom
On Mon, Apr 09, 2007 at 03:14:12PM -0400, George Nychis wrote: > > > Eric Blossom wrote: > > >George, it's not a max capacity per channel, it's a maximum aggregate > >capacity across all data channels (input and output). Use 32MB/s as > >the maximum capacity. Ignore the control channel contrib

Re: [Discuss-gnuradio] max capacity per USB channel

2007-04-09 Thread George Nychis
Eric Blossom wrote: George, it's not a max capacity per channel, it's a maximum aggregate capacity across all data channels (input and output). Use 32MB/s as the maximum capacity. Ignore the control channel contribution. USB is half-duplex, that's why it's the aggregate across the input + o

Re: [Discuss-gnuradio] GPS on DBSRX

2007-04-09 Thread Chris Stankevitz
On 4/9/07, *Peter Monta* <[EMAIL PROTECTED] > wrote: > Question: Has anyone successfully acquired a GPS signal using the > DBSRX daughterboard? Yes, several on this list have done so. Weird, I did not get Peter's message. A quick look at http://list

Re: [Discuss-gnuradio] GPS on DBSRX

2007-04-09 Thread Rakesh Peter
On 4/9/07, Peter Monta <[EMAIL PROTECTED]> wrote: > Question: Has anyone successfully acquired a GPS signal using the > DBSRX daughterboard? Yes, several on this list have done so. Is there any version that is available for public ?? I would love to learn how its being done using GNU Radio

Re: [Discuss-gnuradio] GPS on DBSRX

2007-04-09 Thread Peter Monta
Question: Has anyone successfully acquired a GPS signal using the DBSRX daughterboard? Yes, several on this list have done so. Is so, what kind of gain did you place before the board? External to the dbs_rx I have an active patch antenna---its data sheet says 27 dB gain, 1.5 dB noise fig

Re: [Discuss-gnuradio] max capacity per USB channel

2007-04-09 Thread Eric Blossom
On Mon, Apr 09, 2007 at 03:27:57AM -0400, George Nychis wrote: > So I'm starting to hammer out some code for channel allocation on the host > side, and this isn't crucial because it's going to be a #define which I can > easily change... but what's the max capacity per channel we're looking at?

Re: [Discuss-gnuradio] bits to frame / mblocks

2007-04-09 Thread Eric Blossom
On Sun, Apr 08, 2007 at 12:28:34PM -0700, George Barrinuevo wrote: > Eric, > > In the meantime while I wait for the mblock to be > stable, I plan to use the simplest method to pass say > 100 bits of data messages at a time to a GNURadio > block. This GNURadio block I plan to create will > accept

[Discuss-gnuradio] Basic RX daughterboard: DC bias

2007-04-09 Thread Chris Stankevitz
Hi, When I run the basic RX daughterboard with no input cable attached, usrp_fft reports a signal at 0 Hz (which I assume to be some kind of DC bias created within the USRP or daughterboard). How can I remove this? Thanks, Chris ___ Discuss-gnur

[Discuss-gnuradio] GPS on DBSRX

2007-04-09 Thread Chris Stankevitz
Question: Has anyone successfully acquired a GPS signal using the DBSRX daughterboard? Is so, what kind of gain did you place before the board? Thanks, Chris ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/li

[Discuss-gnuradio] max capacity per USB channel

2007-04-09 Thread George Nychis
So I'm starting to hammer out some code for channel allocation on the host side, and this isn't crucial because it's going to be a #define which I can easily change... but what's the max capacity per channel we're looking at? I don't recall seeing a concrete number somewhere. Same capacity on