Joshua R. Mathison
Geneology notes page for Mathison, McAdaragh, Currington, Richards
and Ramsey. Also, please see reference to 'Court Order of
non-Paternity' in the Mathison - McAdaragh section on that page.
Geneology notes page for the Index to 'The Lineage of Stephens'.
There are over five hundred individuals listed here.
Following is a section on Frequency Modulated Amateur Television.
Some of the links are to articles which I (WB9OQM) had written and were
published in Amateur Television Quarterly (ATVQ) back in the
1990's, and a couple in 'QST' back in the 1970's.
on Commercial FM TV Standards as Applied to Amateur Operations'
which appeared in ATVQ - Winter 1994 and
Your FM TV Receiver to Measure Video Deviation' which
appeared in ATVQ - Spring 1994.
- Also, here is a letter
Video Preemphasis and Deviation Calibration' which I had
written to Bill Parker (W8DMR) concerning an article of his which was
published in ATVQ - Fall 1998.
- 'Low Frequency Test Tone FM TV Deviation Calibration' and a note on intermodulation.
- 'Estimate the Audio Deviation on a RF Subcarrier' Using an oscilloscope
- 'Calculate AB Amplifier Operating Parameters' for making Linear Power Amplifier adjustments for better linearity and efficiency.
- Also, see 'QST' of October 1974 , 'Hints and Kinks' column for
an article on using spent shotgun shells for plug-in coil forms.
- Another 'QST' article, in the February 1977 issue, is 'Inexpensive
Traps for Wire Antennas'. This article describes a pioneering use of
coaxal cable in place of high voltage capacitors. This article has been a
reference in the 'ARRL Antenna Book' for many years.
- Volunteer Wanted: Someone in Geneva, Switzerland who can who can
go to the International Telecommunication Union library and get the
references from the original 'CCIR Recomendation 405'. The current 'CCIR
Recomendation 405-1' does not carry those references.
'Computer Programs for Celestial Navigation' Find your actual position (AP) without
plotting on a chart or map. Enter the geographical position (GP) of two
heavenly bodies, and their sextant co-altitudes and get the two intersections
of the two 'circles of equal altitude' (LOP).
Following are links to some photo essays:
- 'The View from the Engineering Department' Television transmission related
- 'Wood Treating Plants' photo tour.
- 'Rosebud Battlefield State Park' photo tour of March 2009.
Battlefield State Park Fire' photo tour after wildfire of August 2013.
- 'Whitewood Valley', the Black Hills, and Colorado Rockies Aerial Tour.
- 'B-17 Slurry Bomber', and related photos.
- 'My Housemate' Ashly Elaine.
- 'Frenchy's Family' who also once were my housemates.
- 'Roberta Rose and Tandrea Dare' who once were my adopted family.
- 'Tiffany's Birthday' and Other Msc Saturday Night Pictures.
- GO HERE for photos of 2011 halloween in Sheridan, Wyoming.
- GO HERE for photos of 2012 halloween in Sheridan, Wyoming.
- GO HERE for photos of 2013 halloween in Sheridan, Wyoming.
- GO HERE for photos of 2014 halloween in Sheridan, Wyoming.
- GO HERE for photos of 2015 halloween in Sheridan, Wyoming.
- GO HERE for photos of 2012-2013 New Year's Eve in Sheridan, Wyoming.
- GO HERE for St. Patty's Photos in Sheridan, Wyoming - 2013.
Please send E-Mail to: mathison (aatt) sdf-eu.org
Last revision 2015-11-02