Doug, K1ZO

Doug's main areas of interest are contesting and chasing DX. "[I'm] a geek at heart," Doug says. "I am still amazed that I can send a signal half way around the world from a fairly modest setup."

"I started my Amateur Radio career in March 1991 as N1IWU, a Technician with HF privileges. In April 1991 I upgraded to Advanced class. I obtained the 2 by 2 call, KD1GJ, in January 1992. I upgraded to Extra class in March 1992, 1 year and 5 days after sitting for my first exams."

When the FCC started the Vanity Call system in 1996, Doug obtained his current call, K1ZO.

The Shack

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In the shack, Doug has a Yaesu FTDX-5000MP, an Icom IC-746Pro, DX Doubler SO2R Interface, MicroHam MicroKeyer II, W2IHY 8-band equalizer and EQplus, an American Morse Single Lever Paddle, Heil ProSet iC and Heil PR40. Antenna switching is done with an Array Solutions SixPak.

On his computer he runs a number of software packages to assist his DXing and contesting activities, including DXLab Suite, N1MM, EZNEC+ and HFTA.

The Antennas

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"Tower 1" holds a Mosley TX-53M at 43 feet. The four element antenna lets Doug operate on 20, 17, 15, 12 and 10 meters with 3 elements on each band.

"Tower 2" is 66 feet of Rohn 45 with a Mosley Pro-67B (2 elements on 40, 3 elements on 20-12 and 4 elements on 10) @ 68 feet. There is also an 80 meter Inverted V @ 64 feet.

He also runs a multiband OCF dipole at 40 feet. An Inverted "L" is used for 160 meters.

We'll let Doug describe the 2nd tower project.

"Since moving to Swanzey in 2008 and becoming “radio-active” again, I have had a variety of antennas for HF. I started with a G5RV hung as an Inverted V @ 40 feet. This was replaced by a K4KIO Hex Beam on a 30 foot push-up mast. Thanks to the generosity of Paul, K1PH I was given a 50 foot crank-up tower (working height of 40 feet). The Hex resided on it for two years until I replaced it with a Mosley TA-53M yagi (3 elements on 20, 17, 15, 12 and 10).

When I retired in 2012 Amateur Radio became a much bigger part of my life and I decided that I wanted, or needed, something taller and bigger…and I didn’t want to remove the existing tower. With the blessings from Lee, my much better half, and a few stipulations (no tree cutting and tower or guys couldn’t be in the front yard), I started my search.

After deciding on a suitable location on the back corner of the property I defined the following criteria:

Antenna - Boom length and turning radius less than 30 feet. Less than 14 sq. ft. wind load. Minimum of 2 elements on each band from 40 - 10. Affordable on my reduced income.

Tower - Initially I was leaning towards a 70 foot free standing aluminum tower. These thoughts quickly disappeared after reading the specs for the base that would be needed. In addition to not wanting to dig a 5’ X 5’ X 8’ hole, getting the required amount of concrete poured was just not in the budget.

The revised criteria became 7 sections of Rohn 45 guyed at 36 and 60 feet.

Within a very short time I located a used Mosley Pro-67B, at a very reasonable price and only a 2 hour drive. I read reviews, looked at hundreds of pictures and discussed the choice with some of the locals. This would be more than adequate for my needs. And the owner accepted my lower offer…Done Deal!

Randy, N1KWF, was instrumental in locating 7 sections of Rohn 45 with rotor plate and guy brackets at a great price. Again..Done Deal!

This was the end of Summer 2012. Below is a pictorial of the project from ground breaking through completion."

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As the hole got deeper, the rock pile got bigger.

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Rebar cage and completed base. Base is 3 X 3 X 4 with a section of Rohn 45 inside the cage.

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Tower sections and assembled antenna awaiting installation.

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The Crew (l to r) Randy - N1KWF, Neil - AE1P and Doug - K1ZO.

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Randy and Doug bring up section #3 (left) and Randy works on section #6.

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Randy wrestles with 110 lbs. of aluminum at 68 feet.

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October 15, 2013. On The Air!

My sincere appreciation goes to Randy, N1KWF and Neil, AE1P. Without their assistance and expertise this project would still be in the planning stages. Thanks guys! Doug - K1ZO


Coax Entrance Panel

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In preparation for bringing in the two lines from the Array Solutions SixPak switch Doug built a coax entrance panel using two 1/8 inch thick pieces of aluminum and three 8 inch SO-239 Bulkhead Coax Conncetors.

The outside is protected with a 6 X 6 X 4 inch weatherproof Carlon box. Coax enters the bottom through 3/4 inch Non-Metallic Cable Clamp onnectors.

The outside aluminum plate will be tied into the station ground system.

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