Client : KPBS

End User : KPBS

Value : $1,000,000+

Duration : 05/07/2012 - 08/22/2012

Location : Mt Soledad in La Jolla, CA

Entities Involved : KPBS, KFMB, Lincoln Financial, Clear Channel, San Diego State University, Nautel, Dielectric, Hammett & Edison

New “Quadzilla” Dielectric master FM antenna installed for KPBS



Project Description

WIS was contracted by KPBS to undertake this turnkey FM transmitter system relocation project in early May of 2012 with strict deadlines imposed by the FCC and grant funding. The high level scope appeared simple on paper; relocate KPBS from San Miguel to Mt Soledad. However, the KFMB master FM antenna did not cover FM channel 89.5 MHz so the entire antenna system would need to be replaced….with active users! The plan would be to install a TEMP 4 bay antenna at the top of the tower for low power use while the entire system would have to go down during installation. Most of the work was able to be completed with Rf suits and reduced power by using half of the existing antenna, but occasionally we had to switch the users to the TEMP. New transmission line, new radiating elements and over 50 new 3 1/8″ rigid elbows were installed by WIS crews on the new “Quadzilla” Dielectric DCR-Q8 master FM antenna. Along with the main antenna replacement scopes, WIS also provided LOS, engineering, interference mitigation testing, licensing, procurement, installation and testing for the new STL microwave link. Other fun activities handled by WIS included structural analysis, A&E, engineering, permitting, electrical, equipment room prep, grounding system installation, Nautel transmitter system installation and aux equipment system installation, wiring and testing. The project was completed before September of 2012, beating the deadline and in just under 4 months total.

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