® Tech Notes

Featured Articles:

How to get on 500 kHz with your K3

by Dick Hissink,  PA3CW

Other Articles Of Interest:

Musings on an Experiment in QRP (pdf, 770KB) by Bob Locher, W9KNI (Reprinted by permission from CQ Magazine, October 2002)
The DX Prowess of HF Receivers (pdf) by Tadeusz - SP7HT  (ARRL QEX magazine free download)
QRP Is!  Confessions of a QRO Op gone QRP pdf (500 kB) Team Vertical's Reflections on breaking all 6 NA QRP single-band records and 4 of the 6 world QRP single-band records using all K2s in the 2001 CQWW CW contest from Jamaica.
Transverter Application Note pdf How to interface your K2 or any other rig to a transverter. by Dave Olean, K1WHS and Jay Rutherford, K1UC	Also see: Transverter Supplemental Notes  by K1JD (90 kB, pdf)
Miniature Magnetic Loops (pdf, 700k) By David Posthuma, WD8PUO
Soldering Tutorial (pdf) What to do, and what NOT to do, to get excellent solder joints.  By Tom Hammond, N0SS
Modifying the K2 to bring out signals for digital modes.  .pdf  Update to add Pauli's digital board to K2's with a KAF2 installed. (8/20/02) By Pauli Nunez, EA3BLQ	Pauli's Custom K2 Station

• An Overview of Software DSP for Weak Signal Enhancement by Roger Rehr W3SZ

• An Audio Notch and Band-Pass Filter for the K2 By Randy Hargenrader, WJ4P 

• Setting the K2 power control for 5w maximum.  (.pdf) By (Ingo, DK3RED)   Also in German.

• W3FPR's K2 Mod Articles Page, including articles on:

  • Using a Smart Charger with the K2 Internal Battery

  • An FT900 Knob for my K2

  • A Switchbox for Digital Modes with Auto Compression Disable

• Care and Feeding of Your K2 Battery. (.pdf) By Bob Lewis, AA4PB
• A Practical Milliwatt Mod for the K2  By, Randy Hargenrader WJ4P
• Ask Dr. Solder by NN6CW
• K1/K2 Application Notes
• K1/K2 Mods
• Builder's Resource Page

• ABX Variable Filter Mod for the Sierra by N6KR

Tech Notes features technical articles submitted by our customers and others.  Topics can be Elecraft related or more general interest. Articles range from radio mods to technical 'how to' write ups. New articles will be posted monthly (or more often) and previous ones will also be archived on this page. We hope this page becomes a clearing house for useful information to the amateur radio community.

To submit an article or ask questions, please email webmaster@elecraft.com . All technical ideas in submitted articles will be considered non-proprietary and part of the public domain. The article may be copyrighted if desired.

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