Re: ListLogLinearPlot crystal filter
- To: mathgroup at smc.vnet.net
 - Subject: [mg131805] Re: ListLogLinearPlot crystal filter
 - From: Alexei Boulbitch <Alexei.Boulbitch at iee.lu>
 - Date: Wed, 9 Oct 2013 02:10:39 -0400 (EDT)
 - Delivered-to: l-mathgroup@mail-archive0.wolfram.com
 - Delivered-to: l-mathgroup@wolfram.com
 - Delivered-to: mathgroup-outx@smc.vnet.net
 - Delivered-to: mathgroup-newsendx@smc.vnet.net
 
I have some data I want to plot::
db = {-1, -3, -10, -20, -30, -40, -50, -60, -70, -80}
freq1 = {3.39407, 3.39397, 3.39385, 3.39369, 3.39348, 3.39325, 3.39298, 3.39266, 3.39246, 3.39229}
freq2 = {3.39602, 3.39610, 3.39622, 3.39640, 3.39660, 3.39684, 3.39711, 3.39750, 3.39763, 3.39785}
The db is the log plot and the freq1 and freq2 are linear.
This plot is of a crystal filter with a center frequency of 3.395 [0 db] and shows the shape of the filter in db loss as you get away from the center freq on the high freq side and the low freq side [above and below 3.395Mhz].
I hope to eventually overlay other crystal filters on top of this plot [multiple overlays] to compare with this filter.
How can I set this up to display this single plot and also multiple plots? I assume ListLogLinearPlot is the best/simplest way to  do this. Feel free to arrange the input data if there is a better way to do this.
Here is a link of the data I want to eventually plot.
This is not the only data I want to plot
http://www.qsl.net/g3oou/iffilters2.html
Thanks for any help
James  Math 6.0
Hi, James,
I did not catch, why do you need to go for ListLogLinearPlot, if the data you gave varies in a limited way. Try first this:
 db = {-1, -3, -10, -20, -30, -40, -50, -60, -70, -80};
freq1 = {3.39407, 3.39397, 3.39385, 3.39369, 3.39348, 3.39325,
   3.39298, 3.39266, 3.39246, 3.39229};
freq2 = {3.39602, 3.39610, 3.39622, 3.39640, 3.39660, 3.39684,
   3.39711, 3.39750, 3.39763, 3.39785};
lst1 = Transpose[{db, freq1}];
lst2 = Transpose[{db, freq2}];
ListPlot[{lst1, lst2}]
Or this:
Show[{
  ListPlot[{lst1, lst2}],
  ListLinePlot[{lst1, lst2}]
  }]
Have fun, Alexei
Alexei BOULBITCH, Dr., habil.
IEE S.A.
ZAE Weiergewan,
11, rue Edmond Reuter,
L-5326 Contern, LUXEMBOURG
Office phone :  +352-2454-2566
Office fax:       +352-2454-3566
mobile phone:  +49 151 52 40 66 44
e-mail: alexei.boulbitch at iee.lu