Re: [Discuss-gnuradio] CommRadio CR-1a

2016-09-06 Thread Ed Criscuolo
On 9/6/16 10:56 PM, Cinaed Simson wrote: On 09/06/2016 02:05 PM, Ed Criscuolo wrote: I've just ordered one of these SDR standalone radios, It appears to be a radio - not a SDR. No, it is an SDR internally, with a self-contained User interface and sound output that makes it a complete stand-a

Re: [Discuss-gnuradio] CommRadio CR-1a

2016-09-06 Thread Cinaed Simson
On 09/06/2016 02:05 PM, Ed Criscuolo wrote: > I've just ordered one of these SDR standalone radios, It appears to be a radio - not a SDR. > and it has the > capability of outputting its I/Q samples on a USB port. Evidently only under Windows using the vendors software. 3rd parties can write s

[Discuss-gnuradio] Importing other flowgraphs for use in my flowgraph's main()

2016-09-06 Thread Pavan Yedavalli
Hi, I was wondering if there was a way to import flowgraphs into other flowgraphs. For example, I have a flowgraph that contains a block that I created. In the main() of this, I want to actually run two other flowgraphs that do a simple transmission and reception to get a received power before I c

[Discuss-gnuradio] CommRadio CR-1a

2016-09-06 Thread Ed Criscuolo
I've just ordered one of these SDR standalone radios, and it has the capability of outputting its I/Q samples on a USB port. Has anyone tried to interface one of these to GnuRadio yet? Seems that it would be one solution for HF (aka shortwave) reception. http://www.commradio.com/cr-1-cr-1a-r

Re: [Discuss-gnuradio] Number sink and making a clock

2016-09-06 Thread Marcus Müller
Hi Santos, you're not actually describing your problem all that well, but there's the central question: Are you using a throttle block, or is your flow graph rate-limited by a hardware device (e.g. a USRP or HackRF or Audio sink)? ===Not using throttle or rate-limiting hardware=== GNU Radio jus

Re: [Discuss-gnuradio] Number sink and making a clock

2016-09-06 Thread Nicolas Cuervo
Hi Santos, The signal should (and most probably is) being streamed out from the source block as you set it up. The update period of the number sink is only to tell it when to look for a new value and retrieve it to the label. It is just a visualization tool. So you'll see that, by setting your upd

Re: [Discuss-gnuradio] Number sink and making a clock

2016-09-06 Thread Derek Kozel
Hello Santos, Do you have a throttle block in your flowgraph? By default samples will be handled as fast as your computer can handle. The frequency of the signal source block is just math a based on the sample rate. However GNU Radio does not by default enforce the sample rate to be "realtime" bas

Re: [Discuss-gnuradio] Number sink and making a clock

2016-09-06 Thread Santos Campos
Ah that did slow it down to more real time! So, data isn't really streaming out of the signal source block like the parameters would suggest, is it? My expectation with forcing a long period was it'd stream high for 10s and low for 10s. On Tue, Sep 6, 2016 at 1:24 PM, Nicolas Cuervo wrote: > Hi

Re: [Discuss-gnuradio] Number sink and making a clock

2016-09-06 Thread Nicolas Cuervo
Hi Santos, inside the number sink there is a field called "Update Period", which you can reduce to a value that suits your needs. For what I understand of your setup, maybe you have a rather big number here in comparison with the update rate of the sink. Try reducing this value and let us know if

[Discuss-gnuradio] Number sink and making a clock

2016-09-06 Thread Santos Campos
Hello, all! I'm using a square wave to make a clock(frequency = .05 Hz, Period = 20s). It shows up well in a time sink, but has trouble gaining stability in a number plot. How can I get the number sink to update in real time? Thanks and any help is much appreciated! -Santos

[Discuss-gnuradio] Fw: Fw: Signal Source - frequency control

2016-09-06 Thread Gavin Jacobs
After further checking, here are the steps to reproduce the issue, and a workaround: 1. Create a flow graph with: Null Source (short) -> Throttle(short) -> Embedded Python Block #1 (short in, short out) -> Embedded Python Block #2 (short in, float out) -> Null Sink (float) For the Embedded

Re: [Discuss-gnuradio] Two USRP B210s with Octoclock-G

2016-09-06 Thread Marcus Müller
Yes, you can :) Offering synchronization using external 10MHz and PPS signals is the purpose of the Octoclock-G ! However, the B210's LOs will have a random phase after every tuning, so you must calibrate the relative phase offsets every time you tune Best regards, Marcus On 06.09.2016 10:21,

Re: [Discuss-gnuradio] Two USRP B210s with Octoclock-G

2016-09-06 Thread Samith Abeywickrama
Hi Marcus, Thank you very much. Btw, how can we calibrate the relative phase offsets? Samith On Tue, Sep 6, 2016 at 4:34 PM, Marcus Müller wrote: > Yes, you can :) Offering synchronization using external 10MHz and PPS > signals is the purpose of the Octoclock-G ! > > However, the B210's LOs wi

Re: [Discuss-gnuradio] Two USRP B210s with Octoclock-G

2016-09-06 Thread Marcus Müller
Well, that's a bit up to your implementation. Probably, you want to have something that you know the direction of and use it to find the individual phase offsets, and find a complex de-rotating factor. On 06.09.2016 10:52, Samith Abeywickrama wrote: > Hi Marcus, > > Thank you very much. Btw, how

[Discuss-gnuradio] receive and transmit at high samp rate

2016-09-06 Thread Eli Dayan
hello im new to gnuradio and im trying to use gnuradio to receive and transmit a signal with a bandwitdh of 5MHz using usrp b200-mini. its a simple code,im using 2 block(UHD:usrp source and UHD:usrp sink).the usrp supossed to be able support rates of up to 70MHz. altough im getting alot of overrun

[Discuss-gnuradio] Two USRP B210s with Octoclock-G

2016-09-06 Thread Samith Abeywickrama
Hi all, I'm going to implement MUSIC(Multiple Signal Classification) algorithm to find Angle of Arrival of signal using two USRP B210s. Therefore I have 4 antennas. But I need to synchronise my two USRP B210s. May I know that can I use Octoclock-G with my USRP B210s without any problem? Thank you

Re: [Discuss-gnuradio] receive and transmit at high samp rate

2016-09-06 Thread Marcus Müller
Hi Eli, On 06.09.2016 09:52, Eli Dayan wrote: > hello > im new to gnuradio and im trying to use gnuradio to receive and transmit > a signal with a bandwitdh of 5MHz using usrp b200-mini. > its a simple code,im using 2 block(UHD:usrp source and UHD:usrp > sink).the usrp supossed to be able suppor