BILLS STUFF MINIMALIST WIRELESS WEBPAGE

Flight:

           Why Airplanes Turn - Doing the Math and Physics

KT34A information:

            Tower Talk Postings

                        Original Posting to TT on 15 m F/B for M2 upgrade

                                    (also at http://lists.contesting.com/_towertalk/2008-03/msg00472.html)

                        Additional Info Posting to TT

                                    (also at http://lists.contesting.com/_towertalk/2008-04/msg00135.html)C:\Users\HPBill\Documents\VA7VVWeb\Master\index032716.html

                        Final Summary to TT

                                    (also at http://lists.contesting.com/pipermail/towertalk/2008-July/102316.html)

            Summary of Element Resonances and Dimensions

            Details of Final Summary for the KT34A Devotee

            MMANA KT34A M2 upgrade model file (use at your own risk)

                                    (kt34a_FullXM2.txt  rename to   “kt34a_FullXM2.maa”)

 

QSK-5 information:

            AMPS Posting for Relay Free QSK-5

                                    (also at http://lists.contesting.com/_amps/2007-12/msg00161.html)

            Write Up on QSK-5 use considerations     

 

Tuning the Ameritron AL-811H  eham article:

                                    (http://www.eham.net/articles/18364)

 

Antenna Projects information:

           The 30 m 2-Element Vertical Array

            Tower Talk Posting on 80m InvL (also at http://lists.contesting.com/archives//html/Towertalk/2009-01/msg00163.html)

            A Frugal 6 Meter 3 Element Yagi

            Gamma Match Equations and Associated Confusion

            A Problem with the ARRL Gamma Match Code

            Vetted Gamma Match Calculator available on ARRL website – GammaMW4

            Gamma Match Fortran Code – Please credit N6MW if used

            Hairpin Match Details

            A Version of Hairpin Article published in June '13 QST

            A Hairpin Match Calculator (no pretty plots)

            Moxon-Yagi Hybrid for 12 m – The MOXAGI

            A 160/80 Dual Band Vertical

            Folding Back Ends of Insulated Wires for a Dipole

            Coaxial Trap Confusion Reduced

            A Relatively Simple Coaxial Trapped 160/80 Vertical/T

            Beware - recent results suggest this trap may not be up to high power, at least after some wet weathering. It might be okay if weather-sealed better. YMMV

            Antenna? We Don’t Need No Stinking Antenna.

            A Direct Single Feed Dual Band Vertical Dipole Array for 20 and 17

            A 6 Meter 2 Element Bent Yagi Direct Feed Beam - Beyond Frugal

            ACE Hardware Special Direct Feed 3 El Wire Yagi for 6 Meters

            Ultimate (i.e., Last) Light Cheap Direct Feed 3 El 6 Meter Yagi

            A Coaxial Trap Inverted Vee for 160/80

Vertical Antenna Ground Losses:

            Vertical Antenna Ground Loss & Displacement Current

            Brown Buried Radials Paper 1937 Review of Experiments

            Brown Paper 1937 – some Calculations and Critical Evaluation of Theory Aspects

            Some FDTD Maxwell Equation Calculations of Vertical Ground Losses

            Brewster Angle, Pseudo-Brewster Angle, Polarization, Low Band Vertical Antennas and Elevation Patterns



Tower Raising:

           The Non-Falling Derrick

 

K3 Projects:

            Interface/Strategy for K3/N1MM/MMTTY for FSK & CW with no switching with a serial port

            Some say this can be done (sometimes maybe) with a second USB/COM converter and no COM port – an attempt to do that failed but . . .

             CW keying and Radio control without a COM port port using a USB/COM adapter K3 and N1MM

V73MW DXpedition:

            After Action Report

            The Long Island Hotel, the site of this DXped, is now closed.

 

Bill, N6MW  billsstuffn6mw(at)comcast(dot)net ( backup -  n6mw(at)arrl(dot)net )