Re: [Discuss-gnuradio] Sync block or general block?

2017-11-17 Thread Marcus Müller
Hi Ali, sync or not sync is not a question of the number of in and output streams, but a question of whether you produce exactly N items on every output for exactly N items consumed from every input. You should very very likely read [1]! If you're writing a sync block, you don't implement forecas

Re: [Discuss-gnuradio] Interpreting gr-ieee802-15-4 output messages (was: Interpreting the recieved packet)

2017-11-17 Thread Marcus Müller
[in a deep, Jedi voice:] Use the source, Luke! Not quite sure which specific message port output we're referring to, here, so I can only give general advice on how to solve this: * figure out which block is the one generating the message * read the GRC .xml file to figure out which GNU Radio bl

Re: [Discuss-gnuradio] Global socket in the flowgraph

2017-11-17 Thread Marcus Müller
You'd pass that object – all the objects that you create in Python have a name that you can pass around. Notice that you usually very much would want to avoid this. The blocks run in different threads, so you need take care that accesses to your shared object are thread save, e.g. by having intern

Re: [Discuss-gnuradio] Global socket in the flowgraph

2017-11-17 Thread Carlos Alberto Ruiz Naranjo
Perfect!! Thank you :) 2017-11-17 12:42 GMT+01:00 Marcus Müller : > You'd pass that object – all the objects that you create in Python have > a name that you can pass around. > > Notice that you usually very much would want to avoid this. The blocks > run in different threads, so you need take ca

[Discuss-gnuradio] RDF by interference

2017-11-17 Thread vk4tec
Hello I have a question regarding the use of two software defined radios for the purpose of TOA time of arrival radio direction finding Do the software defined radios have to be locked to each others clocks to work properly or is it good enough that they just pass RF that can be used to de

Re: [Discuss-gnuradio] RDF by interference

2017-11-17 Thread Markus Heller
Hi Andrew, check this talk: https://www.youtube.com/watch?v=Km4TU17b05s vy73 markus dl8rds Am Freitag, den 17.11.2017, 23:25 +1000 schrieb vk4tec@tech- software.net: > Hello >   > I have a question regarding the use of two software defined radios > for the purpose of TOA time of arrival radio d

Re: [Discuss-gnuradio] RDF by interference

2017-11-17 Thread Derek Kozel
Hi Andrew, You must be able to establish the true time relationships between samples from each radio. The accuracy of the measurement of and stability of the time relationship will be primary contributors to how accurate the calculated direction to a signal will be. You could use a transmission f

Re: [Discuss-gnuradio] Global socket in the flowgraph

2017-11-17 Thread Dan CaJacob
This kinda looks like a good application for ZMQ, btw. On Fri, Nov 17, 2017 at 8:12 AM Carlos Alberto Ruiz Naranjo < carlosruiznara...@gmail.com> wrote: > Perfect!! Thank you :) > > 2017-11-17 12:42 GMT+01:00 Marcus Müller : > >> You'd pass that object – all the objects that you create in Python