Re: [Discuss-gnuradio] USRP hardware purchase

2007-08-16 Thread Eric Blossom
On Wed, Aug 15, 2007 at 06:56:17PM -0700, Dan Halperin wrote: > > On top of that, an (extremely, I think) optimistic lower bound for > latency in a GNU radio system is over 1 millisecond from the RX antenna > through the FPGA over the USB to the computer to your software back over > the USB and ou

Re: [Discuss-gnuradio] USRP hardware purchase

2007-08-16 Thread George Nychis
I've got to go with Dan on this one, there is no chance of 802.11 with the USRP and GNU Radio. However, we are working on something 802.11-like with the in-band signaling work and the MAC we are building. I think a big first step for the platform is getting a solid contention based MAC protoc

Re: [Discuss-gnuradio] USRP hardware purchase

2007-08-15 Thread Dan Halperin
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 The USRP has a maximum bandwidth of about 16 MHz (using 8-bit samples instead of the usual 16), which is not even enough to cover one 802.11b/g channel (22 MHz Nyquist). Thus you'll have a hard time decoding b/g packets at faster than 1,2 Mbit rates (B

[Discuss-gnuradio] USRP hardware purchase

2007-08-15 Thread Li, W David
Hi, For those who have experience with the hardware, please see if my list of components is adequate for a single host. The intent is to be able to build a 802.11 (b/g) network. 1. One USRP board package (including motherboard, enclosure, 2 RF cables, USB cable, power supply etc) 2.