WDGG FM Transmission Line Sabotage and Recovery
High-Power FM Signal Severed by Copper Theft
A 100,000-watt FM station, 93.7 WDGG(FM) known as "The Dawg," was knocked off the air in Boyd County, Kentucky, after a perpetrator severed the main transmission line leading to its broadcast tower. The incident, which occurred in broad daylight, involved the theft of the heavy coaxial cable for its copper content, leaving the station operating at a severely reduced power of approximately 10 watts using a backup transmitter and auxiliary antenna.
Technical Impact and Repair Challenges
Replacing a high-power broadcast transmission line is a complex and expensive engineering task. The station's director of engineering, Evan Adkins, is managing a recovery process that faces several technical hurdles:
- Pressurized Lines: The transmission lines contain pressurized gases to prevent moisture-induced shorts. Because of this, simple splicing of the cut cable is not a viable option, as it would introduce the risk of gas leaks.
- Specialized Hardware: The line is of an unusual size, making it difficult to source replacements quickly. The cost of the line can reach $160 per foot.
- Financial Cost: Total repair estimates range between $70,000 and $100,000.
- Infrastructure Uncertainty: It remains unclear if the main antenna suffered electrical or physical damage during the sudden severance of the line.
Safety Risks of Severing Live Transmission Lines
Industry experts and observers note that cutting a live 100kW transmission line presents extreme physical dangers. While the actual power in the line may be lower than the Effective Radiated Power (ERP) of 100,000 watts, the energy levels remain high enough to cause severe injury or death.
"Cutting a live transmission line is incredibly foolish... I've seen (and personally tested) AM transmitters dead shorting, and within less than a second... it will fold back on a dead short to like 1% of its operating power... This is to protect the (even more expensive) transmitter from lightning strikes or other weird eventualities."
Technical commentary suggests the perpetrator may have survived due to "foldback protection" in modern solid-state transmitters, which automatically reduces power when a short circuit is detected to protect the equipment from damage.
Criminal Investigation and Community Response
According to reports from WSAZ(TV), the suspect, Paul Crisp of Catlettsburg, was apprehended after a short police pursuit. The severed transmission line was discovered in his yard, where it had already been cut into smaller sections for scrapping. Investigations revealed that the suspect had likely scoped out the site in advance and disabled the video surveillance system prior to the theft.
Despite the outage, the local community in the Huntington and Ashland areas has shown significant support for the station. Owner Mike Kirtner attributes this to the station's local ownership and its role in community events, such as the "9th Street Live" promotions and the annual "Dawg Dazzle" event, which attracts approximately 15,000 people annually.
Broader Trends in Infrastructure Theft
This incident highlights a recurring issue of infrastructure sabotage for scrap metal. Similar patterns of copper theft have been reported in various regions, including Detroit and South Africa, where thieves target power substations and telecommunications lines. The economic disparity is stark: the scrap value of the stolen wire (estimated by some observers to be between $1,360 and $6,400) is a fraction of the $70,000 to $100,000 required to repair the damage.