# Export max\_hold from QTGUI Frequency Sink

**URL:** <https://www.ruby-forum.com/t/export-max-hold-from-qtgui-frequency-sink/252258>\
**Category:** GNU Radio\
**Created:** [April 16, 2019, 2:56pm UTC](https://www.ruby-forum.com/t/export-max-hold-from-qtgui-frequency-sink/252258 "2019-04-16T14:56:52Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![user123456789](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/a88e57/32.png) [@user123456789](https://www.ruby-forum.com/u/user123456789)\
**Post date:** [April 16, 2019, 2:56pm UTC](https://www.ruby-forum.com/t/export-max-hold-from-qtgui-frequency-sink/252258/1 "2019-04-16T14:56:53Z")

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Hello,

I am using QTGUI Frequency Sink to calculate a real time spectrum and I want to export the max\_hold facility to a file/vector. Where can I find the data I want and how can I use it?

Thanks!