# PSK modulator output

**URL:** <https://www.ruby-forum.com/t/psk-modulator-output/230588>\
**Category:** GNU Radio\
**Created:** [June 25, 2014, 9:25am UTC](https://www.ruby-forum.com/t/psk-modulator-output/230588 "2014-06-25T09:25:47Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![jason\_sam](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/7993a0/32.png) [@jason\_sam](https://www.ruby-forum.com/u/jason_sam)\
**Post date:** [June 25, 2014, 9:25am UTC](https://www.ruby-forum.com/t/psk-modulator-output/230588/1 "2014-06-25T09:25:47Z")

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Hi

What kind of sink can be used to analyse the outpt of a PSK modulator. I  
am transmitting a text file and is trying to retrieve and analyse using  
file sink.

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**Author:** ![sreena\_p\_h](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/47e85d/32.png) [@sreena\_p\_h](https://www.ruby-forum.com/u/sreena_p_h)\
**Post date:** [June 25, 2014, 10:35am UTC](https://www.ruby-forum.com/t/psk-modulator-output/230588/2 "2014-06-25T10:35:56Z")

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For initial experiments, the waterfall source would be a nice choice, as  
it displays energy over frequency and time.