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[Discuss-gnuradio] Channelizer mapping


From: John Ackermann N8UR
Subject: [Discuss-gnuradio] Channelizer mapping
Date: Fri, 2 Jun 2017 11:25:47 -0400
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.7.0

Is there a basic rule for how to assign channel numbers to the PFB channelizer output? I seem to be too dense to figure it out from the docs. I just want to pull the channels out in order of their RF frequency, low to high.

I currently have a 7 channel channelizer which seems to work properly after I farted around to get this map: [5,6,7,0,1,2,3] using a "Channels" value of 8 (note that channel 4 is thrown away).

Now I want to extend the number of channels, and the number may be even or odd. From Tom Rondeu's tutorial, I get the sense that the mapping changes based on even or odd channel count.

Is there a basic rule to develop the map for the case of RFch0 = ch0, RFch1 = ch1, etc.?

Thanks,
John



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