Re: [Discuss-gnuradio] Make db_base::_refclk_divisor pure virtual?

2010-07-10 Thread Jason Abele
On Fri, Jul 9, 2010 at 12:05 PM, Catalin Patulea wrote: > This question is addressed mostly to Jason Abele since I see he's been > working on this code recently. Catalin, Unfortunately, I am not a good person to ask about this, my name appears on that line solely because I fixed a typo in the er

Re: [Discuss-gnuradio] Transmit signal power - How to find from the amplitude set in transmit_path?

2010-07-10 Thread Brian Padalino
On Sat, Jul 10, 2010 at 8:32 PM, John Andrews wrote: > Hi, > I want to calculate the power of the signal(in dBm) transmitted in > benchmark_tx.py. The transmit_path sets an amplitude in the range [0,1] but > how will I convert this into the actual power. I just want to know where > should I be loo

[Discuss-gnuradio] Transmit signal power - How to find from the amplitude set in transmit_path?

2010-07-10 Thread John Andrews
Hi, I want to calculate the power of the signal(in dBm) transmitted in benchmark_tx.py. The transmit_path sets an amplitude in the range [0,1] but how will I convert this into the actual power. I just want to know where should I be looking in order to calculate it myself. Thanks, John

[Discuss-gnuradio] USRP_spectrum_sense.py: Observing the power values

2010-07-10 Thread Jia Malhotra
I am a new user of USRP and GNU radio. I am using a RX-A daughter board with USRP The gain it outputs is 52. I was using the usrp_spectrum_sense.py file to observe the received power of a SMS signal. If I specify the range as 900-1800 Mz to observe cellphone activity at these frequency an

Re: [Discuss-gnuradio] USRP noise at higher frequencies

2010-07-10 Thread Matt Ettus
On 07/10/2010 03:44 AM, Joachim Roop wrote: Hi, I posted about this before (High frequency OFDM), but could not get a reply. I tried my best, but am completely stuck by now and would accept any wild guesses. I have two USRPs (TVRX and WBX-TX) connected via cable that transmit a OFDM signal (co

[Discuss-gnuradio] USRP noise at higher frequencies

2010-07-10 Thread Joachim Roop
Hi, I posted about this before (High frequency OFDM), but could not get a reply. I tried my best, but am completely stuck by now and would accept any wild guesses. I have two USRPs (TVRX and WBX-TX) connected via cable that transmit a OFDM signal (courtesy of gnuradio-examples/python/ofdm, def

Re: [Discuss-gnuradio] Re: Import Question

2010-07-10 Thread Josh Blum
On 07/10/2010 12:34 AM, mehmet kabasakal wrote: Thanks Josh, I will try to understand the generated python code after execution of grc file. One more thing, while i was searching on the net, i found http://www.joshknows.com/gnuradio this link. In the USRP Sink part, the script #Tune the cente

Re: [Discuss-gnuradio] Re: Import Question

2010-07-10 Thread mehmet kabasakal
Thanks Josh, I will try to understand the generated python code after execution of grc file. One more thing, while i was searching on the net, i found http://www.joshknows.com/gnuradio this link. In the USRP Sink part, the script #Tune the center frequency u.tune(subdev._which, subdev, frequency)