Alejandro Luciano PE
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Alejandro Luciano PE Consulting Engineer Engineering Statement Application for Construction Permit Minor Change Caguas Educational TV. W251DA CH. 251D 98.1 Mhz Vega Baja, Puerto Rico I. Introduction This engineering exhibit is prepared in support of a minor modification to the authorized construction permit of FM Fill-in translator W251DA Vega Baja, Puerto Rico. It is proposed to modify the present construction permit to, relocate the W251DA antenna, change antenna location above ground, and antenna pattern. The proposed W251DA facility is compliant with all interference protection requirements except to WNVM-FM Ch. 249A, it will be shown that the interference produced by the proposed operation of W251DA fall in a small uninhabited area close to the proposed antenna location. II. Protection to FCC Monitoring Station and Arecibo Observatory The proposed W251DA facility is located 35.11 Km from the FCC monitoring station at Santa Isabel, Puerto Rico, because of the low ERP of the proposed W251DA facility towards the monitoring station and the intervening terrain, no adverse effect to the monitoring station is expected. Pursuant to Section 73.1030 of the FCC Rules, concurrently with the filling of this application the Arecibo Observatory is being notified of the proposed facility. III. Environmental Considerations. The proposed W251DA antenna will operate at a radiation center of 22.86 meters above ground, at an ERP of 0.25kW. The proposed modification was evaluated for potential radiofrequency exposure to workers and the general public. Based on a radiation center at 22.86 meters above ground, a relative antenna field factor of 0.618 at 45 degrees depression from horizontal and a total ERP of 0.25kW, the calculated RF exposure at two meters above ground will not exceed 3.123μw/cm² or 1.56% of the 200 μw/cm² general population uncontrolled limit applicable to the FM band. The transmitter site is restricted from access. The tower is not located in a flood plain, a wilderness area, or in a wildlife preserve that might affect threatened and endangered species or their habitat, it is not located in an Indian religious and/or cultural site. No significant changes in surface features will take place.
Transcript of Alejandro Luciano PE
Alejandro Luciano PE Consulting Engineer
Engineering Statement
Application for Construction Permit Minor Change Caguas Educational TV.
W251DA CH. 251D 98.1 Mhz Vega Baja, Puerto Rico
I. Introduction
This engineering exhibit is prepared in support of a minor modification to the authorized construction permit of FM Fill-in translator W251DA Vega Baja, Puerto Rico. It is proposed to modify the present construction permit to, relocate the W251DA antenna, change antenna location above ground, and antenna pattern. The proposed W251DA facility is compliant with all interference protection requirements except to WNVM-FM Ch. 249A, it will be shown that the interference produced by the proposed operation of W251DA fall in a small uninhabited area close to the proposed antenna location.
II. Protection to FCC Monitoring Station and Arecibo Observatory The proposed W251DA facility is located 35.11 Km from the FCC monitoring station at Santa Isabel, Puerto Rico, because of the low ERP of the proposed W251DA facility towards the monitoring station and the intervening terrain, no adverse effect to the monitoring station is expected. Pursuant to Section 73.1030 of the FCC Rules, concurrently with the filling of this application the Arecibo Observatory is being notified of the proposed facility.
III. Environmental Considerations. The proposed W251DA antenna will operate at a radiation center of 22.86 meters above ground, at an ERP of 0.25kW. The proposed modification was evaluated for potential radiofrequency exposure to workers and the general public. Based on a radiation center at 22.86 meters above ground, a relative antenna field factor of 0.618 at 45 degrees depression from horizontal and a total ERP of 0.25kW, the calculated RF exposure at two meters above ground will not exceed 3.123μw/cm² or 1.56% of the 200 µw/cm² general population uncontrolled limit applicable to the FM band. The transmitter site is restricted from access. The tower is not located in a flood plain, a wilderness area, or in a wildlife preserve that might affect threatened and endangered species or their habitat, it is not located in an Indian religious and/or cultural site. No significant changes in surface features will take place.
IV. Exhibits Discussion
Exhibit 1: Exhibit 1, shows the allocation compliance consideration for
the proposed W251DA transmitters site, it shows that the proposed antenna location is within the 25-mile radius permitted by the rules.
Exhibit 2: Exhibit 2, shows minor change compliance, it shows that the
present W251DA construction permit 60 dBu contour is totally encompassed by the proposed W251DA minor change.
Exhibit 3: Exhibit 3, shows the 1st adjacent allocation compliance for
the proposed W251DA operation. It shows that there is no prohibited overlap between the proposed operation and the present authorized and construction permit of 1st adjacent stations protected contours.
Exhibit 4: Exhibit 4, shows the co-channel allocation compliance. It
shows no prohibited overlap between the proposed W521DA operation and the WXHD-FM Ch. 251A present and construction permit protected contours.
Exhibit 5: Exhibit 5, shows the 3rd adjacent allocation compliance
consideration, it shows no prohibited overlap between the proposed W251DA and 3rd adjacent WIOB-FM Ch. 248B Mayaguez, PR and WUKQ-FM Ch. 254B Mayaguez, PR. protected contours.
Exhibit 6: Exhibit 6, shows the 2nd adjacent allocation clearance to
W253DB CH. 253D Barranquitas, PR.
Exhibit 7: Exhibit 7, shows the 2nd adjacent allocation clearance to WNVM CH. 249A Cidra, P R. The initial study indicates that interference is created to 2nd adjacent WNVM, as per 74.1204(d) it will be shown that no interference will occur due to lack of population. WNVM-FM places 75.3 dBu at the proposed W251DA site, adding 40 dBu to the U/D ratio produces an interference contour of 115.3 dBu. The Exhibit shows January 2020 dated “Google Earth” satellite picture with the superimposed W251DA 115.3 dBu proposed contour, it was determined that the 115.3 dBu interfering contour touches the ground along the antenna main beam at a distance of 74 to 165 meters from the tower base. The satellite picture shows that the interference area is uninhabited. A recent visit to the site shows that the area remains uninhabited. There are two uninhabited shelters nearby, that are used as hen shelters.
Exhibit 8: Exhibit 8 shows the FM station search used for the proposed
W251DA minor change.
Alejandro Luciano PE Consulting Engineer PO Box 194528 San Juan, Puerto Rico 00919-4528 (787)717-6984
EXHIBIT 1AM FILL-IN TRANSLATOR ALLOCATION CONSIDERATION
PROPOSED MINOR CHANGE W251DA CH. 251 98.1 MHZ) - 0.250 KW DAVEGA BAJA, PUERTO RICO
Alejandro Luciano PESeptember 2020
25 Miles Radius from WBYM WBYM-AM
Proposed W251DA-D 60dBu Contour
EXHIBIT 2MINOR CHANGE ALLOCATION CONSIDERATION
PROPOSED MINOR CHANGE W251DA CH. 251 98.1 MHZ) - 0.250 KW DAVEGA BAJA, PUERTO RICO
Alejandro Luciano PESeptember 2020
W251DA CP 60 dBu Contour WBYM-AM
Proposed W251DA-D 60dBu Contour
EXHIBIT 3FIRST ADJACENT ALLOCATION CONSIDERATION
PROPOSED MINOR CHANGE W251DA CH. 251 98.1 MHZ 0.25KW DA VEGA BAJA, PR
Alejandro Luciano PESeptember 2020
WZOL FM 60 dBu
WZOL-FM 360 dBu
W252EG60 dBu
Proposed W251DA50/10 54 dBu
W250CF - CP60 dBu
W250CF - LIC60 dBu
EXHIBIT 4CO-CHANNEL ALLOCATION CONSIDERATION
PROPOSED MINOR CHANGE W251DA CH. 251 98.1 MHZ 0.25KW DA VEGA BAJA, PR
Alejandro Luciano PESeptember 2020
Proposed W251DA40 dBu 50/10
WXHD-FM LIC. 60 dBu
WXHD-FM CP60 dBu
EXHIBIT 5THIRD ADJACENT ALLOCATION CONSIDERATION
PROPOSED MINOR CHANGE W251DA CH. 251 98.1 MHZ 0.25KW DA VEGA BAJA, PR
Alejandro Luciano PESeptember 2020
WIOB-FM LIC. 54 dBu Contour
WUKQ-FM LIC. 54 dBu Contour
Proposed W251DA94 dBu 50/10
Contour
EXHIBIT 6SECOND ADJACENT, W253DB, ALLOCATION CLEARANCE
PROPOSED MINOR CHANGE W251DA CH. 251 98.1 MHZ 0.25KW DA VEGA BAJA, PR
Alejandro Luciano PESeptember 2020
Uninhabited Area of interference to
WNVM-FM
Hen Shelter
Transmitter Shelter
Proposed W251DA100 dBu Contour
W253DB-CP60dBu Protected
Contour
EXHIBIT 7SECOND ADJACENT WNVM-FM ALLOCATION CONSIDERATION
PROPOSED MINOR CHANGE W251DA CH. 251 98.1 MHZ 0.25KW DA VEGA BAJA, PR
Alejandro Luciano PESeptember 2020
WIOB-FM LIC. 54 dBu Contour
WUKQ-FM LIC. 54 dBu Contour
Proposed W251DA115.3 dBu Contour
Area of interference to WNVM-FM
Hen ShelterTransmitter Shelter
Interference to WNVM-FM begins
Interference to WNVM-FM ends
WIOB 248 B FM 97.5 LIC MAYAGUEZ PR US BLH-19951020KC 8153 50 302 94.64 58.8 271.34WIOB-FM1 248 D FB 97.5 LIC SAN GERMAN PR US BLFTB-19861003TG 8154 0.92 0 77.42 48.11 257.16WNVM-FM1 249 D FB 97.7 LIC CAYEY PR US BLFTB-20101004AAE 183917 0.021 0 26.65 16.56 160.78WNVM-FM1 249 D FB 97.7 APP CAYEY/AIBONITO PR US 183917 0.1 0 26.65 16.56 160.78WNVM 249 A FM 97.7 LIC CIDRA PR US 1891 3.1 336 17.86 11.1 100.11WNVM 249 A FM 97.7 LIC CIDRA PR US BMPH-20180618ABE 1891 3.1 336 17.86 11.1 100.11WNVM 249 A FM 97.7 LIC CIDRA PR US BMLH-20120710ACQ 1891 3 333 17.76 11.04 99.97WNVM 249 A FS 97.7 LIC CIDRA PR US BXLH-20110322ABR 1891 3 324 17.76 11.04 99.97W250CF 250 D FX 97.9 LIC ARECIBO PR US BLFT-20161121ADT 26656 0.23 0 48.76 30.3 286.2WXHD 251 A FM 98.1 CP SANTA ISABEL PR US BPH-20180904ABO 77881 6 153 32.16 19.98 195.84WXHD 251 A FM 98.1 LIC SANTA ISABEL PR US BLH-20140806AAW 77881 6 133 32.15 19.98 196.16W250CF 252 D FX 98.3 CP ARECIBO PR US BPFT-20180110AAW 26656 0.125 0 63.25 39.3 287.12WZOL-FM3 252 D FB 98.3 LIC FAJARDO PR US BLFTB-20131231AEN 191171 0.166 0 62.28 38.7 87.28WZOL 252 A FM 98.3 LIC LAS PIEDRAS PR US BLH-20120514ADR 8898 0.83 574 44.69 27.77 93.94W252EG 252 D FX 98.3 CP UTUADO PR US BNPFT-20181009AAP 203235 0.1 0 46.15 28.68 264.49W253DB 253 D FX 98.5 CP BARRANQUITAS PR US BNPFT-20181010AAL 202068 0.022 0 14.17 8.8 193.48WUKQ-FM 254 B FM 98.7 LIC MAYAGUEZ PR US BLH-20130104ABI 54818 25 601 77.42 48.1 257.09WUKQ-FM1 254 D FB 98.7 LIC PONCE PR US BLFTB-20130325AML 127832 3.8 -28 50.78 31.55 226.29
EXHIBIT 8
CENTRAL BROADCASTING CORPORATIONRADIO PROCER IN C.WLII/WSUR LICENSE PARTNERSHIP G.P.WLII/WSUR LICENSE PARTNERSHIP G.P.
Licensee/Permittee
118123106819
ServiceChannelCall
SPANISH BROADCASTING SYSTEM HOLDING COMPANY INC.SPANISH BROADCASTING SYSTEM HOLDING COMPANY INC.
CityStatus
AURIO A MATOS BARRETOAMOR RADIO GROUP CORP.AMOR RADIO GROUP CORP.AURIO A MATOS BARRETOWZOL INC.WZOL INC.
File NumberState Country Azimuth
NEW LIFE BROADCASTING INC.NEW LIFE BROADCASTING INC.NEW LIFE BROADCASTING INC.NEW LIFE BROADCASTING INC.NEW LIFE BROADCASTING INC.NEW LIFE BROADCASTING INC.
Freq. MHZ
ERP (kW)
HAAT (Meters)
Distance (KM)
Distance (Miles)
FM SEARCH FROM PROPOSED W251DA18 - 18 - 21.8 North Latitude, 66 - 16 - 29.6 West LongitudeCH. 251D - 98.1MHZ, 0.25kW DA, RC = 439.8 Meters AMSL
Facility ID
Alejandro Luciano PE Consulting Engineer October 5, 2020 Angel M. Vazquez Spectrum Manager Arecibo Observatory HC3 Box 53995 Arecibo, PR 00612 On behalf of Caguas Educational TV Inc. licensee of fill-in translator W251DA Facility ID: 202075 and in accordance with section 73.1030 of the FCC Rules, we hereby notify of the proposed modified facility The particulars of the proposal are as follow: Proposed W251DA: Frequency: 98.1 MHz NAD 83 geographical coordinates of antenna location: 18-18’-21.8” N+ 66-16’-29.6” W- EIRP Power: 0.25 kW Horizontal Polarized. Antenna orientation: 320 degrees True. Emission: F3E Should you have any questions or need additional information, please contact the undersigned at your convenience.
Alejandro Luciano PE Consulting Engineer PO Box 194528 San Juan, Puerto Rico 00919-4528 [email protected] (787)717-6984 Sent via email to [email protected]
