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Licensed since December 1956, I've seen a lot of changes in the Ham Radio hobby. It has been a social and technical tool for me throughout my life, bringing me many good friends, employment opportunities, and enjoyable experiences.

I have a somewhat out of date homepage at k7buc.org


Latest news at K7BUC

The winter radio conditions are here, and Christmas is near. Season's Greetings to all. The bands have been quiet and the DX is abundant. I've shifted much of my operation to digital modes, especially on 20 meters. For me, the best of the current protocols for rag chewing is Olivia. Olivia uses a narrow bandwidth, yet can give error free QSO's where the signals are more than 10db below the average band noise. Only Amtor/Sitor and Pactor ARQ modes are more impressive. 

Throughout this year I have been experimenting with Analog SSTV using MMSSTV, Digital SSTV using EasyPal, and digital voice using FreeDV. I sure do like the quiet background with FreeDV.  With all this, I still frequent the 7200 khz vicinity of 40 meters and some operation on 75 meters.



The Primary Antenna

HyGain AV-18HT HyTower vertical antenna before radials were installed..


Evening view to the southeast


Radials run through the Mesquite and Prickly Pear Cactus areas (Ouch!)



Climbing up to the antenna plateau


Dead AV-18HT vertical

aftermath of mini-tornado!

I only had 60 radials when this happened

antenna is now rebuilt and  back up. Its working great again


The "magic" of raising the antenna

Look at the rocks! David, my wife's Yavapai-Apache cousin made hard work look easy.

Note the large piece of "caliche" (calcium carbonate) from the hole in the middle picture. A pick just bounces off this stuff.

It is elastic and tough, and iforms a 10 foot deep layer at the antenna location.

The concrete flows into holes in this layer which gives the base extra strength.

The Station

The tranceiver is a Flexradio Flex-3000. It is a joy to use, having by far the best receiver I have ever used. The Amplifier is an Alpha 77, a legal limit amp which employs a single 8877/3CX1500A7. On bands where an antenna tuner is required I use a Nye Viking MB-V. Power is measured by an LP-100 Digital Vector RF Wattmeter.

The vertical antenna is a Hygain Hytower AV-18HT with 90 radials, located 25 feet above and 200 feet to the North of the hamshack on a desert plateau, and is fed by 200 feet of Andrew LDF5-50 7/8" hardline.

Since I have a soft voice, I use a bit of audio processing. A Neumann KM-184 mic feeds a Focusrite Saffire 24 Pro preamp, which has a parametric equalizer and compressor. Output one is into a W2IHY i-Box balanced interface then a Ten-tec 715 Speech Processor drives the Flex 3000. I use the Flex downward expander/gate to remove air conditioner noise. Output 2 of the Focusrite preamp feeds a Behringer UC202 USB 1.1 interface. This input to the computer is used for FreeDV digital voice software. The Focusrite firewire interface is used for recording.

Pictures of Equipment at K7BUC


Hamshack as of12/04/2013 (right side)


Hamshack as of 12/04/2013 (left side)


Antenna Tuner (with AIM4170 antenna analyzer on top)


The Amp, an Alpha PA-77 (one 8877 tube)


New Rimrock Station layout

First attempt at a Ham Shack in Rimrock, AZ


Shack as of Nov 2012, showing the Armstrong Sound Soak acoustical panels covering the walls and ceiling.

Yes, the soda is part of the station :-)


Latest Hamshack Picture


73 Del




6154321 Last modified: 2015-07-16 00:19:39, 7477 bytes

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QRZ Logbook Summary for - K7BUC
Latest Contacts for K7BUC at QRZ.com
dedateband mode grid Country op
WA7RAC 2013-01-02 40m SSB CN86qn United States James L Woodcook
KC9ETS 2013-01-02 40m SSB EM66ul United States Paul A Cervenansky
KD0TKG 2012-12-21 40m SSB EM37jd United States Madrid P Hill
KB3DOR 2012-12-19 40m SSB EM95jr United States Robert E Scott
KE7GZU 2012-12-17 40m SSB CN74xa United States Michael L Myers
KD8STQ 2012-12-16 10m SSB EN72tr United States Jason C Burk
WX7MB 2012-10-04 80m SSB DM43dh United States Mark A Bales
WH7W 2012-08-26 40M SSB BL11bh Hawaii MARK S GERBER
K7ART 2012-08-05 40m SSB DM33xm United States ARTHUR C HIDDE
KZ7ZZ 2012-07-31 40m SSB CN97bn United States THOMAS TOUNTAS
KH7DX 2012-07-29 40m SSB BK29ao Hawaii Stuart E Johnston
KJ7USA 2012-07-21 40m SSB DM04lf United States John P Kraljic
W6CEC 2012-07-04 40m SSB CM95po United States CLAYTON E CULLEN
W6CEC 2012-05-02 40m SSB CM95po United States CLAYTON E CULLEN
KE4WLK 2012-05-02 40m SSB EM66nu United States Jeremy

Book Totals: 40 qso's   39 confirmed Get a free logbook at QRZ.COM

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Mon Oct 5 04:04:46 2015 UTC
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