Re: [Discuss-gnuradio] frequent phase slip with the new digital.costas_loop_cc

2012-09-23 Thread Kyle Zhou
On 21/09/2012, at 11:37 PM, Tom Rondeau wrote: > On Fri, Sep 21, 2012 at 8:15 AM, Kyle Zhou wrote: >> >> >> Hi Tom, >> I spent some time on reading the code in gri_control_loop. However, the >> calculation from loop bandwidth to alpha and beta is quite complicated and >> from digital_costas_

Re: [Discuss-gnuradio] Error: timed out waiting for TX and/or RX LO to lock

2012-09-23 Thread Dan CaJacob
I had a similar problem a while back. Re-seating the daughter are was the fix. On Jul 3, 2012, at 6:27 PM, Julio Hector Aguilar Renteria wrote: > > Hi, all > > help error uhd_cal_tx_iq_balance --verbose > > root@usrp2:/usr/local/bin# uhd_cal_tx_iq_balance --verbose > linux; GNU C++ versio

[Discuss-gnuradio] USRP / Laptop Road case?

2012-09-23 Thread davek
im searching for a heavy duty road case to house my laptop and B100 for portable use. Optionally would like to stick some gel cells in there while away from AC power. I am thinking putting the laptop and usrp side be side on the top with batterys underneath, or laptop on top, usrp / battery under.

[Discuss-gnuradio] Dr Dobbs Article about GNU Radio

2012-09-23 Thread ikjtel
FWIW http://www.drdobbs.com/embedded-systems/soft-radio/240007489 ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] Block missing GNU Radio Companion

2012-09-23 Thread Jose Torres Diaz
Hi, I made a new block called "my_block", copying the example "blob_to_stream" provided in grcextras. I changed the files .cc, .h and .xml. Also, I added some lines in the CMakeList.txt files in the path: /grc /include/gnuradio/extras /lib Then, I compiled using: build/ sudo cmake ../ build/ su

[Discuss-gnuradio] Waiting too much time for the GPS to be synchronized

2012-09-23 Thread Alex Zhang
Hi, I have two USRPs with GPS equipped. I found it always took too much for the two GPS to be sychronized to the same time (diff < 0.1s). Previously, I wait about 1 or 2 hours, but today 10 hours later, they still have time difference of 5s. I am using GPS indoor environment. -- Alex, *Dr

Re: [Discuss-gnuradio] Waiting too much time for the GPS to be synchronized

2012-09-23 Thread Ting Wu
I think you need to put the antenna outside. In my situation, I put the antenna on the balcony. It usually takes me only several minutes to get an accurate time (diff<0.01). Wu From: discuss-gnuradio-bounces+wu.ting=comf5.comm.eng.osaka-u.ac...@gnu.org [mailto:discuss-gnuradio-bounces