# Simple grc GUI question **URL:** \ **Category:** GNU Radio\ **Created:** [May 12, 2014, 7:45am UTC](https://www.ruby-forum.com/t/simple-grc-gui-question/241067 "2014-05-12T07:45:33Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![musicdenotation](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/ea666f/32.png) [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\ **Post date:** [May 12, 2014, 7:45am UTC](https://www.ruby-forum.com/t/simple-grc-gui-question/241067/1 "2014-05-12T07:45:33Z")
Hi, I need to align the audio switching network of my ham radio repeater db0fue, and it would be nice to have some GRC GUI element that allows me to switch between two predefined RF frequencies. Never worked with this GUI stuff, and I guess finding it out myself probably would take too long πŸ™‚ Just need to set a 1000 Hz NFM test tone generator that can be switched between 145.0375 and 431.025 MHz with touching a button on my tablet PC screen…if one could drop the name of the GUI element that could do the job, the rest should be simple enough πŸ™‚ I am using latest gnuradio 3.7.something (built from source) and Kubuntu 13.10. Sorry for the dumb looking question, but I would love to get this up and running during lunch break, and drive to the repeater with a rucksack full of RF gear this evening and get the deviation issue fixed, before people start complaining. Ralph. – Ralph A. Schmid Mondstr. 10 90762 Frth +49-171-3631223 removed\_email\_address@domain.invalid [http://www.bclog.de/](http://www.bclog.de/) ---
**Author:** ![Ralph\_ASSchmidS\_dk](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/91b2a8/32.png) [@Ralph\_ASSchmidS\_dk](https://www.ruby-forum.com/u/Ralph_ASSchmidS_dk)\ **Post date:** [May 12, 2014, 8:15am UTC](https://www.ruby-forum.com/t/simple-grc-gui-question/241067/2 "2014-05-12T08:15:40Z")
The WX GUI Check Box should work for you. It can toggle between two values. Let me know if you need an example. Ron ---
**Author:** ![Ralph\_ASSchmidS\_dk](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/91b2a8/32.png) [@Ralph\_ASSchmidS\_dk](https://www.ruby-forum.com/u/Ralph_ASSchmidS_dk)\ **Post date:** [May 12, 2014, 1:03pm UTC](https://www.ruby-forum.com/t/simple-grc-gui-question/241067/3 "2014-05-12T13:03:04Z")
Works great, without problems, as expected πŸ™‚ Ralph. ---
**Author:** ![Ralph\_ASSchmidS\_dk](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/91b2a8/32.png) [@Ralph\_ASSchmidS\_dk](https://www.ruby-forum.com/u/Ralph_ASSchmidS_dk)\ **Post date:** [May 12, 2014, 8:39am UTC](https://www.ruby-forum.com/t/simple-grc-gui-question/241067/4 "2014-05-12T08:39:39Z")
OK, this sounds reasonable - when it is able to assign values to buttons and put them into a placeholder on button press, then it is exactly what I need, and I should be able to use this without an example. I was hoping that there is such a simple solution πŸ™‚ Thank you! Ralph.