[Discuss-gnuradio] USRP Problems with decim_rate = 4

2008-07-28 Thread Sl Sl
Hi I think the USRP can provide the minimum decimate rate of 4. So I changed the output data format from short to char. With 8-bit I & Q decim = 4 ->64M/4= 16MS/sec ,I&Q -> 32MB/sec. That is within the range of my USB speed. In the make_format() function I set the width = 8, shift = 8. Then the

[Discuss-gnuradio] How to change the USRP output data format to char??

2008-07-28 Thread Sl Sl
Hi all: I am writing some C programs to read data from the USRP. Currently the output data format from the USRP is short. I want to change the output data format to char to give me a higher sample frequency. Can I do this? where should I change the setting of the USRP?? Thanks! -- Posted via http:

[Discuss-gnuradio] Re: sample frequency of USRP

2008-07-27 Thread Sl Sl
I am currently writing program by myself. Because I can not understand the python code. If I want to do this, which file I need to change? Which file in the gnuradio set the output data length? Eric Blossom wrote: > On Mon, Jul 28, 2008 at 07:06:52AM +0200, Sl Sl wrote: >> Can I do

[Discuss-gnuradio] sample frequency of USRP

2008-07-27 Thread Sl Sl
hi all: I am using USRP with DBSRX daughter board. I need a very high sample frequency. Currently, the USRP can give me maximum sample frequency of 64M/8 in I and Q, and the data type is short, which takes 2 bytes. So can I decrease the length of the output data? for example save the data as cha

[Discuss-gnuradio] The type of the connector on the DBSRX-LF rev

2008-07-09 Thread Sl Sl
Hi all I want to buy several female connectors for USRP. I want to buy the same kind of female connector as the golden one on the DBSRX-LF rev which can connect with input signal. My problem is I do not know the name of this kind of connector, the type and which website to buy such kind of devise.