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Tag Archives | engineer

June ’87: Fixes at the transmitter site

June 8, 1987

Chief engineer Timothy Cochran and general manager Tom Busch extend the 120 ground wires at the AM transmitter site to 320 feet, 1/4 wavelength at KNOM’s frequency. Because of a shipping error back in 1971, the ground wires had been a hundred feet short for 16 years, but the money is finally in place to correct that.

In addition, Tom and Timothy add 240 new radials to improve transmission.

Meanwhile, Nome receives a visit from Gaithersburg, Maryland consulting engineer John Mullaney, who serves KNOM at no charge. John works with tower climber Rod Ewing to adjust KNOM’s folded unipole antenna for maximum signal strength.

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Engineer’s corner: “Shake, shake, shake”

Rolland in the engineering room

As promised in last month’s edition of the Static, we’re happy to present the latest on KNOM’s equipment and technical issues with a new segment – the Engineer’s Corner – courtesy of volunteer engineer Rolland Trowbridge:

On one morning in early May, the transmitter-to-studio data link, or TSL, quit working. This link allows volunteers at the studio to know the health of KNOM’s AM transmitter without having to go to the transmitter site (located several miles outside Nome, on the tundra near the edge of the ocean). The link is the only warning that something is wrong at the transmitter, and on this day, the link was mute.

I drove out to the site, walked the last quarter mile over thigh-deep snow, and found that the TSL (transmitter link) was not getting power, and neither was the backup power supply that protects the link. The circuit breaker wasn’t blown, so I plugged the transmitter link into another outlet, and just like that, I had everything running again – except that I didn’t know what had happened to the bad outlet.

The next day, I took the outlet cover off and found all the screws to the outlet were loose. I picked another random outlet that wasn’t being used and checked the terminal screws on it, and two of them were loose. Shaken loose.

The transmitter site bears the brunt of the intense winds that are so frequently whipped up from the Bering Sea. I have been in the building with 60-knot winds, and it literally shakes. Everything in that building gets rattled.

This requires extra diligence. Every year, we take sections of the transmitter and tighten every connector in them to prevent loose wires that burn up. Now, I am adding all the outlets and wiring to that list and putting them on a tightening schedule.

This is all part of doing ministry in this corner of God’s world, and I thank you for your support.

 

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“A call that changed my life”

Rolland and sled dogs

We continue to be amazed – both by the challenges that life in rural Alaska presents, and by the goodwill and hard work that those challenges bring forth from those within our KNOM family. This month, we conclude with the reflections of our volunteer engineer Rolland Trowbridge.

The following is an excerpt; we encourage you to read Rolland’s full story (.PDF file).

The PrecipiceA year ago, I received a call from KNOM’s general manager, Ric Schmidt, asking if I knew anything about automatic generator controls. Little did I know that that call would be a call to mission – and a call that would change my life.

I came to Nome on my family’s sailboat in 2009 after sailing over Canada through the Northwest Passage. We started in Michigan after ten years of preparation to take an epic trip with no clue where we would end up… After completing the passage, a storm ripped away our life raft, and we put into Nome to make repairs… Soon, we settled in and made Nome home.

I signed on for a year, and what a year. Every day, Nome’s environment does its worst… with extreme elements trying to tear apart everything that exists. Fortunately, KNOM has decades of experience in dealing with this. It is a true pleasure to work on something that has been built and designed to handle the environment it is in… I think I will be staying a while.

There has been a razor-sharp focus at KNOM for more than 40 years to build and maintain a reliable, low-cost-to-maintain station. I am proud to be part of it.

In the coming months, look for more from Rolland in a new segment for the Static: an Engineer’s Corner, with updates on KNOM’s equipment. Photos: Rolland, a sled dog musher, with one of his dogs; Rolland and family aboard their sailboat, the Precipice.

Again, you can read more of Rolland’s incredible story here.

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February 2002: Les and a polar bear

Polar Bear on ice

A polar bear on sea ice in northern Alaska.

February 5, 2002:

As he does every morning, engineer Les Brown drives to the remote KNOM transmitter site, walking the final 400 feet through deep snow in the morning darkness. Les is unaware that someone in a nearby cabin spotted a polar bear prowling the area overnight. Thankfully, Les finishes his work and returns to KNOM studios without incident.

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Christmas lights

John and Les

In late 1999, former KNOMer John Albers (dressed in brown) works at the base of the station’s FM transmitter tower alongside volunteer engineer Les Brown (blue jacket). Les is holding the Christmas star that, shortly after this photo was taken, was hoisted back to the top of our FM tower; a star has decorated the tower every year since 1971, shining brightly over downtown Nome.

As we move through the dark days of winter and sub-zero weather, KNOM brings light to the lives of remote listeners throughout 100,000 square miles of Western Alaska.

It is a special time of year for the KNOM volunteers. They are far from their families, yet they treasure the gifts of service that they share with each other, the KNOM listeners, and you!

As in years past, the Christmas star is illuminated, and its tiny, bright lights reach into the darkness, sparkling and twinkling with anticipation for the celebration of Christ’s birth. We continue to witness marvelous signs of the great love and support we have for each other. The familiar aroma of a Christmas wreath in our broadcast studio reminds us that, through the cold and darkness, the hope of a new beginning will bring a great light.

From all of us at KNOM, Merry Christmas!

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September 1997: A solution for drifting snow

Les Brown in Studio C

Longtime volunteer engineer Les Brown in KNOM’s Studio C.

September 25, 1997

Chief engineer Les Brown (pictured) has almost single-handedly built the extended fence around the AM tower, preparing for the mission’s higher-power, 25,000-Watt signal. Snow drifting has always been a problem there, and Les tries an innovative solution.

For (fence) pickets, he uses 1/2-inch plastic pipes, which he figures will be aerodynamic and won’t stop as much snow as wooden slats. It turns out to be an excellent decision. The needed material costs $931, and by doing it himself, Les figures he is saving the mission about $4,500 in labor.

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Back in the building! – Fr. Ross, John, and Tom

Father Ross – pastor of St. Joseph Catholic Church in Nome and president of the KNOM Radio Mission board of directors – is back in Nome from a short sabbatical. Fr. Ross was a KNOM volunteer in the late 80s and has been a part of the radio mission in one way or another ever since. He was ordained a priest in Nome on July 15, 2001. We are so thankful for his service, guidance and love for KNOM’s critical radio ministry.

Tom Bunger and John Kelsey

Tom Bunger and John Kelsey in KNOM’s engineering room.

Last week, the technical dynamic duo of John Kelsey and Tom Bunger (pictured above) visited KNOM to help with a myriad of engineering issues. They coordinated with engineering volunteer Rolland Trowbridge to fix, restore, renew, and update radio equipment throughout the KNOM studio building. The improvements will extend the life of some of our equipment and increase the productivity of our computer systems. We thank all who keep KNOM on the air!

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August 1993: Tom Bunger arrives at KNOM

August 15, 1993

From Tacoma, Washington, Tom Bunger is among KNOM’s six volunteers, all new.

He’s assigned as news reporter, working under the supervision of news director Katy Clark. In 1994, Tom is hired as a salaried news director, a position he holds for three years before leaving the station for a career in the computer industry.

It is Tom who creates KNOM’s website in 1997, and he continues to help out the station from time to time.

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Rain, fish, boats, and Rolland!

Rolland

KNOM engineer Rolland Trowbridge performs maintenance checks on our backup power generator.

Summer storms continue to dump lots of rain, and some streams and rivers are swollen with water and fish. We have seen wonderful examples of folks sharing their catch with elders and families who really savor these fresh food staples.

Recently, KNOM opened its doors to the Coast Guard to inform our listeners about voluntary inspections of boats and other craft intended to help ensure public safety throughout Western Alaska’s waterways. You can be proud of the caliber and caring nature of these young men and women. They are committed to keeping us safe.

Super volunteer engineer Rolland Trowbridge continues to save our mission time and resources. He just got back from a well-deserved vacation with his family. He wasted no time in replacing the fan on our satellite receiver, fixing headphones, and documenting equipment upgrades. Our sincere thanks to Rolland and to everyone who makes KNOM possible.

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July 1971: Help from John Mullaney

July 25, 1971

Pro bono consulting engineer John H. Mullaney has flown to Nome from Gaithersburg, Maryland to supervise the installation of new high voltage filters, and KNOM resumes operation at 6:55 this morning.

Mullaney donates the entire week’s work.

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