[Discuss-gnuradio] Migration from GNU Radio 2.8 to 3.1.2

2008-07-09 Thread Alex Gross
I am returning to GNU Radio development after a considerable absence. I would like to start by testing some of the "simple" code I developed for GNU Radio 2.8 in the latest version of GNU Radio (3.1.2). The code was developed to utilize the USRP to tune multiple AM and FM channels. What are

Re: [Discuss-gnuradio] Mayday, Mayday, flex2400 is down

2006-09-26 Thread Alex Gross
Matt, You do an excellent job with the production and support. I think he was kidding about free repair service. That's what the wink meant. I think ... :) --Alex Matt Ettus wrote: hanwen wrote: Help! Today, I connect two flex2400 directly through a coaxial wire. Maybe the gain is to

[Discuss-gnuradio] Simple question about AM Transmission with GNUradio/USRP

2006-09-17 Thread Alex Gross
Suppose I have a dial tone (350, 440 Hz) and I want to broadcast it on an AM radio station whose center frequency is X using the USRP basic TX daughter card. Is there a code snippet I can look at which would describe this? How do I select the appropriate sampling rate, if_decim, if_rate, etc.?

Re: [Discuss-gnuradio] The coming deluge of CPU cycles

2006-07-27 Thread Alex Gross
The cost for the Xilinx PCI Express LogiCORE was $25,000, the last time I looked. It may have dropped to $20,000. It can be used on a Virtex 2P (for x1 and x4) or a Virtex 4 (for x1, x4, x8) operation. The alternative is to use a PCIe PHY chip and then supply a PCIe Link Layer / Transaction La