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Veteran Wireless Operators Of America - Newsletter #57 - 2010
Arlington Radio Public Service Club Newsletter - Spring 2010
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FCC License for the ARRL 600 Meter Experimental Group
The ARRL 600 Meter License Application as filed with the FCC
Updated License Application - June 6, 2005
A Proposed Typical Vertical Antenna System
Exhibit 2 - Experimentation and Research
Technical and Location Data for Station Locations
The Band Plan for the 461 - 475 KHz band for WD2XSH and other stations - by W1FR
A 600-Meter Amateur Band - a proposal by W1FR, Frederick H Raab, Ph.D. (as filed with the FCC)
A 600-Meter Amateur Band - a proposal by W1FR, Revision "C" September 16, 2004
ARRL 500-kHz experimental license WD2XSH - by W1FR, Revision "A" Jan 5, 2007
Report on WD2XSH Stations Ground Wave Tests during the summer of 2008 - by W1FR
Report on the WD2XSH Stations Ground Wave Tests during the Summer of 2010 - by W1FR
Report on the Ground Wave
Tests during the Winter of 2010 through the Spring of 2011 - by W1FR
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General Rules for Participants in Experimental License WD2XSH
The Log Report Form (below) may be used both by WD2XSH participants and by any listeners who may wish to submit reception reports for this project.
Log Report Form (MS XLS file) updated 14 Aug 2009 Instructions for Log Form (MS DOC file) updated 09 Sept 2010
FCC License grant for Part 5 Experimental Station WE2XGR
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A Bibliography on Short Antennas, compiled by Rudy Severns, N6LF.
Spectrum Lab (zipped) with info about VLF reception
Shure Reactance Calculator Slide Rule (1957) [body front] [body back] [slide front] [slide back]
"Low Frequency Antennas" by C. A. Martin and P. S. Carter, RCA Laboratories, Rocky Point, N.Y.
How to Calculate your EFFECTIVE RADIATED POWER - by W1FR (PDF)
A Substitute for Litz Wire? Stranded wire can work. Read THIS
To Download the Big Coil size calculator chart provided by W5TVW in GIF format, click HERE
To Download the Big Coil L/C/F calculator chart provided by W5TVW in GIF format, click HERE
Click HERE to download a partial scan of the 1937 National Bureau of Standards Circular C74. This PDF file contains information for calculation and design of capacitors and conductors, RF resistance of wires and coils, and miscellaneous formulas and data. File size = 48.2 MB Thanks for this file to Pat, W5THT
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500 Watt output 4-400A linear amplifier for the ARRL 600 Meter Experimental Project
(use the BACK button on your web browser to return to this page)
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A Simple 500KHz Loop Antenna by WA1ZMS
N4ICK 200 Watt 600 Meter Transmitter
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A Tree Antenna for 600 Meters - by W5JGV
A Wide-Band RF Preamplifier with power-over-the-coax
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The W5JGV 200 Watt Linear / Digital Amplifier
Picture of the Breadboard setup V 2.02
Picture of the Prototype Amplifier Driver board V 2.05
Parts List and notes Version 2.05 for the 500 KHz 200 Watt Linear / Digital Amplifier
Schematic Version 2.05 of the 500 KHz 200 Watt Linear / Digital Amplifier
50 Ohm Input Attenuator for the 500 KHz 200 Watt Amplifier if you have 10 Watts available
Data file for the IRFP260 MOSFET used in the 200 Watt Amplifier (all versions)
Data file for the TC4426 MOSFET Driver used in amplifier V 2.02 and up
Data file for the LM386 / NTE823 used in amplifier V1.01
Data file for the LM384 / NTE862 used in amplifier V 2.02 and up
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Filters and Tuning
Two Proposed 500 KHz Low-Pass Filter designs by W5JGV
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Other Projects
A 166.5 KHz, 400 Watt SSB Linear Amplifier by W5JGV (opens in a new browser window)
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