[Discuss-gnuradio] How to create uhd's time_spec_t from Python

Hi All, time_spec_t is a class representing time in UHD. It uses time_t (long int) for representing full seconds and double for parts of a second. This format of time is usable to tell USRPs when to do certain tasks. It is also very usable for operations on time without loosing precision. In c++

Re: [Discuss-gnuradio] Synchronisation

Thanks both, All good now - I get a roughly constant phase delta and when I re-run the FG, I get a different phase delta ( I don't need to power cycle the USRPs). Now I will put in the synchronisation code and the phase offset should be close to zero.

Re: [Discuss-gnuradio] How to create uhd's time_spec_t from Python

Hi Piotr, uhd.time_spec.from_ticks(full_ticks_as_int, ticks_per_second_as_float) does the trick for me, usually. You can make one time_spec with from_ticks(12, 1.0f) that is exactly 12 full seconds, and then add a second one that has 0 full_secs, and a double fractional seconds. Personally, I'm

Re: [Discuss-gnuradio] Control Port Thrift Issues

Hi Mark, We can look at that in-depth, but in spirit of keeping this as time-effective as possible for you: Do you *need* controlport (it's a system to remotely access statistics and specifics knobs and levers in GNU Radio)? Many (most) users don't really. Best regards, Marcus On 09/13/2017

[Discuss-gnuradio] [SOCIS '17] GRC C++ Output: Week 7

Hi all, I was on holiday the previous week, but I have created a poster which I have included in my latest blog post. You can read more at: https://grccpp.wordpress.com/ Best regards, Håkon Vågsether ___ Discuss-gnuradio mailing list

Re: [Discuss-gnuradio] Problem with tutorial 3 GNU radio in Python

Hi Shane, I believe this might be the solution. According to James Shimer on this thread, it's a race condition in the python code - read on down the thread. Anyway, the solution works, I tried it. regards Jacqueline From: Discuss-gnuradio

Re: [Discuss-gnuradio] [Freetel-codec2] Why the DMR 4FSK modem is less optimal than David Rowe's 4FSK modem

On 9/12/17, Phil Frost wrote: > I did some experimentation with this technique on BPSK31, and I was able to > get a little more performance in simulations with a matched filter and > trellis decoding than fldigi and PSKCore got with their unmatched filters > designed to

Re: [Discuss-gnuradio] Problem with tutorial 3 GNU radio in Python

Hey Shane, You can fix this by moving line 129-131: *self.blocks_throttle_0 = blocks.throttle(gr.sizeof_float*1, samp_rate,True)self.analog_sig_source_x_1 = analog.sig_source_f(samp_rate, analog.GR_SIN_WAVE, freq, ampl, 0)self.analog_sig_source_x_0 = analog.sig_source_f(samp_rate,

[Discuss-gnuradio] Control Port Thrift Issues

I am seeing an error during “Make” and it has to do with the controlport and thrift….not sure what is going on. Any help would be appreciated. Thanks Mark After running “Make” I see the following error: [ 11%] Building CXX object