Broadcast Engineering Services of Bonny Doon, Inc. Donald E. Mussell Jr. NCE-CBT (808) 828-0209 Office Consulting Engineer (831) 588-9463 Cell 740 Front Street Suite 305 [email protected] Santa Cruz, Ca 95060 www.well.com/user/dmsml Engineering Statement in support of a Minor Change to WBAI New York, New York BLH-19940204KK Pacifica Radio Inc. (PRI), licensee of WBAI, is requesting a minor change to relocate to the Four Times Square electronic site. The Times Square location is .86 kilometers distant at 356.9 degrees true from the current location. The proposed RCAMSL is 297 meters, and a power increase to 10 KW is also proposed, this to maintain the currently authorized coverage contour. This modification is does not significantly change any of the existing, grandfathered overlaps to other facilities. The 54 dbu contour remains virtually the same as the current site. An allocation study, along with detail maps, is attached to this statement. The WBAI transmitter will be diplexed into the Master Antenna located atop the Four Times Square building. It is proposed to operate with an effective radiated power of 10 kilowatts. The Four Times Square antenna is a combined Shivley 6016-3/4-SPL antenna array, three bay, circularly polarized half-wave spaced design, mounted 282 meters above ground. An RFR site plan has been established at Four Times Square, and is attached to this application. After construction and in the application for license, the applicant will submit an updated radiofrequency electromagnetic field survey report and site plan, which will address radiofrequency exposure at the accessible areas along the rooftop level. Respectfully submitted, Donald E. Mussell Jr. NCE-CBT Consulting Engineer June 20, 2014 Don Mussell, Consulting Engineer Broadcast Engineering Services of Bonny Doon, Inc. WBAI Minor Change Contour Comparison Pacifica Foundation, Inc. REFERENCE DISPLAY DATES 40 45 22.0 N. CLASS = B DATA 06-20-14 73 59 12.0 W. Current Spacings to 3rd Adj. SEARCH 06-20-14 -------------------------- Channel 258 - 99.5 MHz -------------------------- Call Channel Location Azi Dist FCC Margin ----------------------------------------------------------------------------- WBAI LIC 258B New York NY 176.9 0.86 241.0 -240.1 WJBR-FM_% LIC 258B Wilmington DE 232.3 166.06 241.0 -74.9 WRVE_% LIC 258B Schenectady NY 359.8 208.89 241.0 -32.1 WAWZ_% LIC-D 256B Zarephath NJ 252.1 51.86 74.0 -22.1 WUSR LIC-N 258A Scranton PA 297.4 165.67 178.0 -12.3 WRWB-FM LIC 257A Ellenville NY 343.5 107.71 113.0 -5.3 WBHX APP-N 257A Tuckerton NJ 192.1 125.20 113.0 12.2 One Step Application WJUX LIC 259A Monticello NY 331.4 126.45 113.0 13.5 WEZN-FM LIC 260B Bridgeport CT 48.9 88.94 74.0 14.9 WRHU LIC 204A Hempstead NY 97.4 32.66 15.0 17.7 WBHX RSV-A 257A Tuckerton NJ 188.9 131.25 113.0 18.3 One Step Application WPSC-FM LIC 204A Wayne NJ 317.3 36.40 15.0 21.4 WBHX LIC 259A Tuckerton NJ 189.3 134.41 113.0 21.4 WODE-FM LIC 260B Easton PA 267.5 104.04 74.0 30.0 WRSU-FM LIC 204A New Brunswick NJ 229.9 49.88 15.0 34.9 WMCX LIC 205A West Long Branch NJ 181.9 53.02 15.0 38.0 WJRZ-FM LIC 261A Manahawkin NJ 189.8 107.92 69.0 38.9 WPLR LIC 256B New Haven CT 49.1 114.21 74.0 40.2 WWES LIC-D 205A Mount Kisco NY 23.0 58.33 15.0 43.3 WZBZ LIC 257A Pleasantville NJ 194.6 158.26 113.0 45.3 R14002 DEL 257A Pleasantville NJ 194.6 158.26 113.0 45.3 involuntary channel substitution per BPH-20100827ABW - to channel 259 from channel 257 R14002 ADD 259A Pleasantville NJ 194.6 158.26 113.0 45.3 involuntary channel substitution per BPH-20100827ABW - from channel 257 to channel 259 ----------------------------------------------------------------------------- RSV-R = reserved - needs protection, RSV-A = allocation % = Station Fails minimum 73.215 spacings WBAI Minor Change Contour Comparison Pacifica Foundation, Inc. Coverage Study - FCC NGDC 30 Sec 06-20-2014 V-Soft Comm ® © Don Mussell, Consulting Engineer Broadcast Engineering Services of Bonny Doon, Inc. MONITORING RF SAFETY AT A MULTI-USER BROADCAST/COMMUNICATIONS SITE Richard A. Tell President Richard Tell Associates, Inc. Colville, Washington John M. Lyons, CBPE, NCE Assistant Vice President Director of Broadcast Communications The Durst Organization New York, New York ABSTRACT Radiofrequency (RF) safety and compliance with applicable Federal Communications Commission (FCC) regulations is commonly more complex and problematic at multi-user transmitter sites. This paper describes how the issue of RF safety is addressed at a relatively new but major broadcast and telecommunications site located at 4 Times Square in New York City. The multifaceted RF safety program at the building is described. Numerous elements of the program including initial site design and planning, RF safety awareness training and information, on-site RF measurements and analysis, use of personal RF monitors, posting of RF safety signage, and a comprehensive transmitter monitoring system interconnected with special warning lights and a custom RF safety door enunciator system are explained. These elements together with an annual audit and annual RF safety retraining of personnel form the heart of the 4 Times Square RF safety program and conform to the guidance of the new IEEE C95.7-2006 Recommended Practice on RF Safety Programs. INTRODUCTION The Conde Nast Building at 4 Times Square (4TS) was completed in 1999 and is a 48 story building comprising 1.6 million square feet of space located at Figure 1. The 4 Times Square building showing the antenna Broadway and 42nd Street in Manhattan (see Figure 1). mast with master antennas for FM radio and VHF and UHF TV The height to the top of the antenna mast is 1118 feet broadcasting. (356 meters) above sea level. In keeping with the environmentally responsible design of the building, the The antenna tower is situated in the center of the rooftop construction of a main antenna tower with building roof starting at 733’9” feet in height, and various broadcast antennas and their operation has been provides master antenna facilities for FM radio accomplished with great care to insure safety and broadcasting (994 feet) and VHF (1039 feet) and UHF compliance with applicable regulations of the FCC. television broadcasting (lower UHF at 1076 feet and Prior to the Federal Telecommunications Act of 1996, upper UHF at 1105 feet). Figure 2 illustrates the New York City had in place City-specific limits on RF overall physical layout of the master antenna systems at fields but after 1996 these local limits were preempted 4TS. The 4TS site has become a major primary/backup by FCC regulations specifying maximum permissible facility for broadcasters with their main/backup exposures (MPEs) for members of the general public facilities located elsewhere, such as the Empire State and occupationally exposed workers. Building and the site continues to expand its operations to include more stations. Currently, the site is used by ten FM radio stations, one VHF TV station, and four 12 FM stations. The original design also had rights for UHF TV stations as summarized in Tables 1 and 2. an additional 68’ of structure to accommodate a master DTV antenna, although it was never constructed. 9/11 changed everything. In the summer of 2002, it was decided that the original tower, Shown in Figure 3, would be demolished and replaced with a new tower to accommodate all the TV & FM stations formerly at the World Trade Center. In the spring of 2003, the Figure 2. Photo of the antenna mast at 4TS showing the different master antennas for FM radio and VHF and UHF TV broadcasting. Table 1. Summary of FM radio stations operating from the 4TS facility. Call Freq ERP TPO Figure 3. Original FM master antenna from Shively Laboratories. (MHz) (kW) (kW) WKCR 89.9 0.65 0.394 tower was demolished and work started on the present WPAT 93.1 7.50 4.250 tower, which was completed on October 2, 2003. WNYC 93.9 10.80 6.223 Before the demolition could begin, however, a WSKQ 97.9 12.40 6.806 temporary construction antenna was needed to give the WHTZ 100.3 13.50 7.338 FM stations (now numbering eight, five from before WKTU 103.5 13.50 7.203 9/11 and three after) a place to broadcast from as a WAXQ 104.3 13.50 6.844 primary or backup site as needed. The antenna was a WWPR 105.1 13.50 6.942 specially designed, single bay, FM antenna known as a WCAA 105.9 1.00 0.715 Lindenblad design from Shively Laboratories. This WLTW 106.7 13.50 6.669 antenna, shown in Figures 4 and 5, Table 2. Summary of VHF and UHF TV stations operating from the 4TS facility. Call Channel Freq ERP (MHz) (kW) WABC 7 174- 205 180 WABC- 45 656- 225 DT 662 (STA) WXTV 41 632- 1,400 638 WFUT- 53 704- 150 DT 710 WFUT 68 794- 3,000 800 The building, when opened in 1999, had a 132’ Figure 4. The FM backup antenna mounted near the broadcast tower that accommodated the original southeast corner of the 4TS building. The Empire State Shively master FM Antenna, designed for operation of Building is seen in the distance. is located on the southeast corner of the roof and is GENERAL SITE DESIGN CRITERIA AND RF attached to the east facing sign mount.