K2 RX Filter Adjustment / Mod. Articles

The K2 provides a very flexible method of adjusting both receive filter bandwidth and BFO offsets for each listener's preferences. Here are a number of application notes on this topic. 

• Download Spectrogram Software for your PC(New Link Address)

• Aligning the K2's CW Filters using Spectrogram, - PDF (109kB), by N0SS (6/18/2000) 

• Aligning the K2's SSB Filters using Spectrogram, - PDF (43kB), by N0SS  (6/18/2000)

• An Alternate CW Filter Adjustment Method, by N0SS

• Noise Source Board for aligning filters, ( PC board and schematic.) - ZIP (160kB), by N0SS (1/31/2000)

• Aligning the K2's CW Filters (for Mac Users ONLY) - PDF (24kB),  by W1EUY (2/09/2000)

• Adjusting your K2 Filters (For the Tonally Challenged), by KR5L

• Filter Adjustment .XLS Spreadsheet for the Tonally Challenged, by W1PA

  • If you have trouble downloading the .XLS file via Netscape, here it is in .ZIP format ,   And here it is in self extracting EXE format.

• A detailed example of the mechanics behind CAL FIL

• K2 2nd Stage Xfil Mod, for 'Flatter' SSB Filter Response - PDF (472kB)  (6/12/2000)

• Setting the K2 filters for PSK31, by AA4PB

(If you would like to add an application note to this page, email: webmaster@elecraft.com )

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