Harry Thielemann, Jr.

2015 George Marti Award for Engineering Excellence

(Published August 2015)

Without engineers, there simply would be no broadcast.

And for many in South Texas, there is no engineer like Harry Thielemann, Jr. – widely known and respected as the Dean of the broadcast engineering community in the southern reaches of the state.

Harry Thielemann

While much of Thielemann’s 46-year career in the broadcast industry has been based in the Rio Grande Valley, he got his start far from there at the Delaware Technical and Community College and the University of Delaware.

His first job in 1969 at WBOC AM-FM-TV in Salisbury, MD, proved fertile ground for mastering new technologies as he led the TV station’s conversion to color and was one of the first to introduce FM radio in the region. He also set up “DJ-assist” systems, the forerunner of today’s automated studios.

In 1983, he was promoted to Chief Engineer when Draper Communications purchased the stations. Draper acquired KGBT-TV Harlingen in 1990 and Thielemann transferred to South Texas with the company where he was introduced to his first VHF facility. He quickly began modernizing the operations with TV stereo audio and eventually led the station’s DTV transition.

In 2006, he accepted the position of Chief Engineer for Entravision Communications in South Texas, then led by Sonny Cavazos. He has since dedicated himself to sustaining and improving the group’s radio and television operations on both sides of the southern tip of the Texas-Mexico border.

This cluster of four FM stations and two full-power and four low-power TV stations – all under one roof – represents one of the largest broadcast operations anywhere in the country.

The responsibility of maintaining and troubleshooting the infrastructure is immense and Thielemann relies on creativity and teamwork to ensure the group’s overall community service mission succeeds.

Despite the heavy weight of this responsibility, Thielemann routinely lends his expertise to other broadcast operations in the market in the interest of furthering the broadcast engineering expertise in the area and advancing the industry’s service to one of the poorest regions of the state.

His dedication to education and innovation doesn’t stop there, as more than a few equipment vendors have learned when he modified their products to overcome glitches and integrate them with other products.

One such project involved protecting equipment from lightning damage. A suite of systems routinely experienced problems with lightning and, after meeting with heavy resistance from the manufacturer, Thielemann made several modifications that averted additional failures.

Six months later he received calls from the equipment salesman asking about the status of their equipment. It was operating flawlessly.

When Thielemann learned that all the vendor’s installations had a problem with lightning he agreed to assist them and saved their product.

With all the stations and six network affiliations, Thielemann cites as one of his biggest challenges the rate at which technology changes.

Being a lifelong learner, the short lifespan of new equipment poses as much excitement as frustration.

“Live news programming must be delivered with flawless execution. The latest tools, lighting and cameras are items most viewers never see, but allow the teams to succeed in a competitive news landscape where ratings influence substantial revenues,” said Christopher Moncayo, Entravision SVP.

“Harry’s ability to address any issue is a talent and quality that comes with experience.”

Thielemann’s passion for taking the stations into the future extends to finding the next generation of broadcast engineers.

He routinely participates in job fairs and other employment programs to showcase the equipment and processes broadcast engineers use on a daily basis.

All his TV and radio stations are firmly entrenched in serving the community and he continues to be inspired by the fact that his engineering plays a key role in helping the stations do just that.

A strong advocate for TAB’s efforts on stations’ behalf, Thielemann serves as an industry ambassador of sorts as he models the best that broadcast engineering offers the local community.

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Jack Sellmeyer *

2014 George Marti Award for Engineering Excellence

(Published August 2014)

Jack Sellmeyer passed away on November 2, 2023.

George Marti is a true Texas broadcasting pioneer and has taught, mentored and set the bar for generations of broadcast engineers in Texas and across the nation.

The first recipient of the George Marti Award for Engineering Excellence has enthusiastically followed in his footsteps.

Jack Sellmeyer

Jack Sellmeyer epitomizes engineering excellence.  

He’s one of the few engineers with experience in the broadcast equipment manufacturing environment, as station engineer and as a consulting engineer. 

Engineers say he “wrote the book” on many of the practices and procedures that they use today.

In addition, he pioneered the use of such techniques as moment-method modeling of AM directional antennas.

Sellmeyer was 15 years old when he started at KPBM as a summer relief guy in his hometown of Carlsbad, NM.

After an enormous amount of persuasion – aka “pestering” – of the chief engineer at Channel 6 in Carlsbad, Sellmeyer was finally hired. 

He wound up building the audio console and wiring all the audio gear.  He considered this an excellent opportunity to learn and spent his summers working full-time there.

In June 1956, Sellmeyer began doing “grunt work” for KAVE Carlsbad, but went on to various positions in the engineering department.

He spent several years in Las Cruces as chief engineer at KGRT.  In 1960, he oversaw the construction of a new on-air and production studio and installation of a new transmitter for a power increase to 5-kw plant from a 1-kw plant.

He also modified several “retired” land mobile VHF radios for use as “broadcast quality” remote pickup systems.  He designed and constructed a remote studio which would fit in a Corvair Greenbrier van.

The unit also was used on scene for promotions and operated in conjunction with the modified VHF land mobile remote pickup system.  It contributed a considerable amount of revenue to the station.

In 1964, Sellmeyer constructed a facility for KRWG at New Mexico A&M College. 

While completing his education at Arizona State University, as chief engineer of KRUS in Glendale, he built new facilities for the station.

Sellmeyer supported an overseas military communications program until January 1967.  He transferred into broadcast product support and traveled to radio stations using Collins equipment to assist in troubleshooting unusual problems and restoring operations of off-air stations.

In 1969, Sellmeyer went to work for Gates in Quincy, Illinois.  As a Senior Engineer in the FM Engineering Department, he developed the modulator and Automatic Frequency Control modules for the TE-1 Solid State FM Exciter to correct frequency stability problems.  Additionally, he worked on advanced development of high power FM amplifiers.

As Chief Engineer at WGAR Cleveland, Sellmeyer not only managed personnel, but also constructed transmitters, designed circuitry, prepared procurement documents, supervised construction of a new antenna system and oversaw construction of a new three studio plant.

After three years there, he returned to Collins Radio in Dallas as senior engineer and helped return the company to profitability.

In addition, he developed a series of three audio consoles for the radio market in the mid 1970s.  He’s the co-inventor of the patented automatic modulation sensitivity control.  With his help, Collins garnered three patents. 

When Collins Radio closed its doors Sellmeyer decided to “hang out his shingle” with his own consulting firm in McKinney.

Like George Marti, Sellmeyer has been deeply involved in educational work to assist other engineers.  
He’s acted as a friend and mentor, always willing to share his vast array of knowledge to better serve the engineering community.

His ability to make complex issues easy for GMs, owners and others has made him active in educational work at many NAB technical seminars and workshops, especially in the area of AM directional antennas. 

He’s a member of the Institute of Electrical and Electronics Engineers (IEEE), the National Society of Professional Engineers (NSPE), the Society of Broadcast Engineers (SBE) and the Texas Society of Professional Engineers. 

The NAB honored Sellmeyer with their Radio Engineering Achievement Award in 2009 for a lifetime of work.
Sellmeyer always remembers the great advice he received from Bill Taylor, principal owner of KGRT in Las Cruces and KBIM Roswell.

Taylor’s theory he passed onto new employees: “Consider the business like a three-legged stool.  One leg is programming, one is sales and one leg is engineering. 

Without all three working at the same level, the stool is not level.  And if one of them is missing, it falls over.”

As a consulting engineer, Jack Sellmeyer makes sure the engineering leg of the stool always stands strong.

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