# Switching muxed sinc sources

**URL:** <https://www.ruby-forum.com/t/switching-muxed-sinc-sources/232842>\
**Category:** GNU Radio\
**Created:** [October 30, 2014, 7:37pm UTC](https://www.ruby-forum.com/t/switching-muxed-sinc-sources/232842 "2014-10-30T19:37:02Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![addis\_a](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/c4cdca/32.png) [@addis\_a](https://www.ruby-forum.com/u/addis_a)\
**Post date:** [October 30, 2014, 7:37pm UTC](https://www.ruby-forum.com/t/switching-muxed-sinc-sources/232842/1 "2014-10-30T19:37:02Z")

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Hi, I would like to try the muxed source stream switching method since  
the slector block is slow at switching between streams.

I read its possible to switch demux N value as a way to switch between  
sources in a graph.

Has anyone got a good graph example of this working they could show me?

If Mux - demux does’nt work, how about a byte stream with small packets?  
could I switch them? I looking for near zeo latency switching…

I have an built a RSSI with RMS & comparator using very narrow center  
bandwidth from center frequency of each channel outputing 0’s or 1’s for  
strongest channel in pairs.

I’m now looking for a fast way to switch the stream source dop out free  
for diversity.

I get a short drop out in the complex signal routing with the selector  
block.

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<div class="post-metadata">

**Author:** ![brblakley](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/f14d63/32.png) [@brblakley](https://www.ruby-forum.com/u/brblakley)\
**Post date:** [November 2, 2014, 5:31pm UTC](https://www.ruby-forum.com/t/switching-muxed-sinc-sources/232842/2 "2014-11-02T17:31:49Z")

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OK, found a faster way to switch streams off / on with blcoks although I  
am sure there must be a better way !!

I am using ‘multiply constant’ block x 0 to switch stream off and x 1  
for on!!

I would try the mute block but dont understand how the trigger works  
yet.

Now I somtimes get a click in the stream but its better than a hudge  
hole that the selector block was introducing.

I’m thinking a fast audio panner would avoid clicks and pops but then I  
am running 2 x WBFM demods !

any better ways of doing this ?