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K2 Mods and Notes

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Application Note Description Revision
(if applicable)
K2 Upgrade Parts An informational sheet for K2 upgrades
K2 LCD and Backlight Pre-installation Notes  Application Note: K2 LCD and Backlight Pre-installation, W6FVI & W3FPR January 9, 2007
Control Cable to Use a KAT100 without a KIO2 By W1SRB
K2 AGC Level App Note Revision A
August 10, 2009
K2 Quick Reference Card by Van, NS6N
Soldering Tutorial What to do, and what NOT to do to get excellent solder joints. By Tom, N0SS
Cheap and Dirty Signal Tracing for the K2 N0SS  rev. 2 04/08/2002
K2 Signal Tracing Pictures KC8SES
Setting the K2 power control for 5w maximum. By (Ingo, DK3RED)** January 11, 2001
Optional K2 Power Control Mod, N6KR August 5, 1999
EU 40 Meter K2 Narrow Bandpass Filter
Grounding the K2 Mic Jack Instructions for optional grounding of the shell on the K2 microphone jack. November 17, 1999
KAT2 CALn note ATU Construction and Alignment Notes June 8, 2000

Winding T2 for Maximum Power output on 12/10M

Low Power Out on Higher Freq's? by AB7MY

Increasing K2 RX Gain

APPLICATION NOTE: Increasing K2 Receive Gain, N6KR Oct. 22, 1999
Alternative Wiring for the K2's AF GAIN Control Application Note: Alternative Wiring for the K2's AF GAIN Control
Notes on setting up the FWD REF Power settings on the KAT2 ATU AB7MY  Feb 25, 2000
K60XV Upgrade Information Your K2 and some of its options will not function correctly with the K60XV unless they meet the requirements listed here. Please read all items carefully.
K2 External Amplifier Keying Circuit Author; WA6HHQ Feb 16, 2000
Simple K2 RX Mod Simple K2 RX mod handles extremely strong on-frequency signals January 1, 2003
K2 Modifications for use at 100W 10M and VFO/ALC mod kit
K2 Modifications for use with the KPA100  (applicable to all K2 Rev. A RF boards) - Wayne Burdick, N6KR Rev. A
June 12, 2002 
Sinewave Sidetone Mod** Sinewave Sidetone Modification, WJ4P Feb 26, 2000
Milliwatting with the K2 N6KR (How to optimize your K2 for accurate power control at low powers.)
K2 and PKS31 Q&A K2 and PKS31 Questions and Answers
PSK31 with the K2** The basic set up for your K2 to run PSK31. By WA7SPY
Setting Filters for PSK31 Setting K2 Filters for PSK31, by AA4PB Nov 15, 1999
Mod to the KSB2 to Improve PSK31 Transmissions Modifications to the KSB2 to Improve IMD in PSK31 Transmissions, KI6WX
Try SCANning Too busy to operate? Try SCANning August 21, 2014
Why is the K2 Single Conversion? Why is the K2 Single Conversion?, N6KR,  Nov 10, 1999
RF Detector Accuracy Improvement K2 APPLICATION NOTE: RF Detector Accuracy, N6KR Oct 26, 1999
CW Zerobeating Zero Beating a Signal on the Elecraft K2 (or K1) Using the SPOT Feature (with .wav files) by N0SS
Index of Customer Mods* An excellent index of customer mods by Sverre, LA3ZA (3rd party content)
Adjusting your K2 Filters

Setting up your CW filters for the Tonally Challenged, by KR5L

Note: This document contains an invalid link to our recently updated website. Please use the link in the next row, to get the spreadsheet.

July 17, 1999
Filter Adjustment Spreadsheet for the Tonally Challenged KR5L Filter Set-up Check Sheet [downloadable .xls Spreadsheet by W1PA] Ver 2.1
Aligning the K2's CW Filters using Spectrogram** ver. 5 01/17/2002
Aligning the K2's SSB Filters using Spectrogram** by N0SS v.5 01/17/2001
An Alternate CW Filter Adjustment Method By Tom Hammond, N0SS
Noise Source Board for aligning filters (.zip) PC board and schematic by N0SS Jan. 31, 2000
Aligning the K2's CW Filters, for Mac Users ONLY** by W1EUY Feb. 9, 2000
A detailed example of the mechanics behind CAL FIL Nov. 30 1999
K2 2nd Stage Xfil Mod** For 'Flatter' SSB Filter Response  ver. 5z
January 11, 2003
K2 App. Note K2 App. Note:  Resolving 17m AGC / S-meter activation from huge signals on the 18m SW band. Nov. 6, 2000
A Homebrew 100W External PA A Homebrew 100W External PA for the K2,  N6CM
K2 General Coverage RX Use by Skousen, WA7SSA

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