# How do I run gr-scan? **URL:** \ **Category:** GNU Radio\ **Created:** [June 15, 2015, 3:46pm UTC](https://www.ruby-forum.com/t/how-do-i-run-gr-scan/242318 "2015-06-15T15:46:23Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Detlef\_R](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/58f4c7/32.png) [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Post date:** [June 15, 2015, 3:46pm UTC](https://www.ruby-forum.com/t/how-do-i-run-gr-scan/242318/1 "2015-06-15T15:46:23Z")
I downloaded this program that someone made hoping that it will help me but I don’t know how to run it. It’s on my computer but it doesn’t have a py file. What should I do? ---
**Author:** ![Ashraf\_Y](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/e19adc/32.png) [@Ashraf\_Y](https://www.ruby-forum.com/u/Ashraf_Y)\ **Post date:** [June 15, 2015, 3:50pm UTC](https://www.ruby-forum.com/t/how-do-i-run-gr-scan/242318/2 "2015-06-15T15:50:29Z")
Dear Ashraf, Google shows that there’s different things created by different people that are called gr-scan; where did you download yours? Are you aware of how to build out-of-tree modules? Best regards, Marcus ---
**Author:** ![Ashraf\_Y](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/e19adc/32.png) [@Ashraf\_Y](https://www.ruby-forum.com/u/Ashraf_Y)\ **Post date:** [June 16, 2015, 9:16am UTC](https://www.ruby-forum.com/t/how-do-i-run-gr-scan/242318/3 "2015-06-16T09:16:49Z")
I guess it’s just “make” with that one, then. It has a makefile. Whether that works really depends on your system – for whatever reason pinkavaj decided not to use gr\_modtoll and CMake, it made automatic finding of libraries impossible. Best regards, Marcus ---
**Author:** ![Ashraf\_Y](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/e19adc/32.png) [@Ashraf\_Y](https://www.ruby-forum.com/u/Ashraf_Y)\ **Post date:** [June 16, 2015, 9:23am UTC](https://www.ruby-forum.com/t/how-do-i-run-gr-scan/242318/4 "2015-06-16T09:23:50Z")
I tried that and it keeps giving me an error about \ is not a file or directory. Which is making me thin that I have the folder in the wrong place or they’re forgetting to add some files to the .tar On Mon, Jun 15, 2015 at 10:13 AM, Marcus Müller [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) ---
**Author:** ![Ashraf\_Y](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/e19adc/32.png) [@Ashraf\_Y](https://www.ruby-forum.com/u/Ashraf_Y)\ **Post date:** [June 16, 2015, 9:36am UTC](https://www.ruby-forum.com/t/how-do-i-run-gr-scan/242318/5 "2015-06-16T09:36:41Z")
In that case, the module is not GNU Radio 3.7 compatible, since gr\_top\_block.h is a 3.6 thing, although pinkavaj seems to indicate he tried to port it to GNU Radio 3.7. Maybe contact the author, or try a different OOT or build it yourself. By the way, the module uses gr-osmosdr, which needs osmo-sdr, and that already comes with exactly the functionality the author says this OOT has – install osmo-sdr and run “osmocom\_spectrum\_sense”. Best regards, Marcus ---
**Author:** ![Ashraf\_Y](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/e19adc/32.png) [@Ashraf\_Y](https://www.ruby-forum.com/u/Ashraf_Y)\ **Post date:** [June 16, 2015, 9:40am UTC](https://www.ruby-forum.com/t/how-do-i-run-gr-scan/242318/6 "2015-06-16T09:40:46Z")
Ok, so there isn’t much I can do with the files now. That program title looks similiar to usrp\_spectrum\_sense, they probably do the the same thing then, right? Thank you so much for helping me This really helped. On Mon, Jun 15, 2015 at 10:33 AM, Marcus Müller [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) ---
**Author:** ![Ashraf\_Y](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/e19adc/32.png) [@Ashraf\_Y](https://www.ruby-forum.com/u/Ashraf_Y)\ **Post date:** [June 16, 2015, 10:46am UTC](https://www.ruby-forum.com/t/how-do-i-run-gr-scan/242318/7 "2015-06-16T10:46:12Z")
Maybe you’d just want to describe what you’re trying to achieve as exactly as possible (in a new thread, to make following easier for people not involved in our bilateral discussion), and we, as a community might find a way to suggest something! Best regards, Marcus