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K4KV USA flag USA

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Ham Member Lookups: 19712

 

Advanced class license in 1972 2nd class radiotelephone in 1973, extra class in 2006

Graduate of UGA 1973 Air Force officer 1974 - 1981 Navigator, C130; WSO F-4 Phantom

In Philippines as WB4ZNW/DU2 1977-1979

Miller Brewing Co. Maintenance Supervisor, PacComm Packet Radio- co-owner 1987-1990, many designs including TINY-2 packet controller. Owner Microsystems Design Services (MDS) electronic design and software. Manufacture digital rotor controls for most rotors. www.mds-ham.com

Current radios: Elecraft K3, ALS-1306, Two FT-857D, IC-7100, home brew 6M kilowatt from a Clipperton L with a pair of GI-7B russian tubes, DEMI 220Mhz transverter,TR-751A,two TAPR Hermes with Munin2 amp and hb Alex.

Enjoy antenna design and fabrication. Ony commercial antennas:HyGain Hytower and SDA100 mobile. Have 6 band quad, Completed 1650' sky loop at 60' average. Have 14 acres of woods (jungle). Have 4 dual-wire beverages for 8 different directions. 120' tower which has 2x7 element LFA 6M beams, one at 90' with TinyTic ring: 107 countries on E skip on 6M in past 6 years. 17 element: 2M,  and 70cm beams at 130'+. Worked most of eastern USA on 2M. MO is furthest contact on 70cm.  Worked as far as Montana on 2M E skip.  HyTower has 64 100' radials.  Modified HyTower with 160M inv-L and 30M vertical stub.  Just installed 40M 4 square, elevated with 8 radials per antenna.  Full-sized 60M vertical with elevated ground system.  220 antenna complete, but not mounted.

HyGain 54' crankup tower acquired for new 4x8 element EF0608 array for 6M.  Have all the materials now to fabricate the array spring of 2016.  Antennas done 2/2015.

Fabricated 4 24 element 70cm antennas, attached to H-frame. Have Az/El mount and hope to do EME soon.

Feb. 2015 just finished 4 each ef0214 dual-polarity 2M antennas.  Completed array, working on Az/El rotor.

Built N2PK VNA for highly accurate measurements. Also built 2M transverter for it.

Ex. EAA member, building several kinds of aircraft. Dragonfly, RV-9A, LongEz.  Dragonfly about ready to fly, RV-9A 75%wings, empenage complete.  RV-9A and Dragonfly are for sale.

Telescope maker, made several mirrors, working on 20" BVC, have 24" grinding machine.

2012-2013 installed new solar pv arrays up to 4.2kw.  Latest array was bought at a cost of $0.85/watt for the solar panels and $0.70/watt for the inverters (Enphase M215).  Now, as of 8-2013, price is down to $0.70/watt for pv, and $0.57 for microinverters.   Update on solar: price down to $0.65/watt on panels, $0.50 for inverters.  I get $0.055 /kw for my excess power.  Not much, but solar saves me $0.12/kw on A/C bill.  Have 1.2kw worth of panels yet to be installed.

2012 installed two home made solar water heater collectors and 200 gallon outdoor storage tank.  It is a drain-back system with 300 feet of 1" PEX pipe as a heat exchanger inside the storage tank.  Spring and summer shows no trouble keeping the tank at 125 degrees F.  Only power is a small Grundfos pump to run water up to the solar collectors on the roof, then it gravity falls back into the tank.

I own the company MDS which makes digital rotor controls, RC1.

I have made quite a few products for MFJ including the following:DCU2, DCU3, SDC-104,YRC1, YRC3, K3 tuner clone board.  Soon to be completed: SDC-105 screwdriver controller, LoopAntenna controller.

Page updated 3-6-2016

2M EME array on 27' Rohn 25.

Front of 19" rack-mount drawer, two Hermes (ANAN-100) side by side.

Left Hermes with hb Alex like filter board and Munin2 amp.  Right unit with Hermes only, note the hb Hermes breakout board in the rear.

 

Dragonfly aircraft, now ready to fly, but not inspected..

RV-9A wing in progress.  Now wings are ready for flaps and ailerons...Empenage complete.

7143290 Last modified: 2016-03-06 13:31:06, 4532 bytes

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