Wireless Facility Engineering Review - Berkeley, California · PDF fileWireless Facility...

Wireless Facility Engineering Review

AT&T Application for Site (CNU 4989) 2095 Rose Street, Berkeley, CA

2/18/2013

RCC Consultants, Inc. ‐ Western Regional Office 266 E. 33rd Street, San Bernardino, CA 92404 909.881.0250 Tel, 909.881.8979 Fax

ATTACHMENT 5 ZAB 04-25-13

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RCC Consultants, Inc.

AT&T Application for Site (CNU 4989) 2095 Rose Street, Berkeley, CA

RCC Consultants, Inc. has been engaged by the City of Berkeley to conduct a peer review,

consistent with recognized industry standard practices, of the proposal from AT&T to construct

and operate a new wireless base station facility at 2095 Rose Street, Berkeley, CA. RCC has

performed many similar peer reviews for municipal clients throughout the US, including several

in the San Francisco Bay area.

Surrounding Environment

The proposed site is two story commercial building, located on the northwest corner of the

intersection of Rose Street and Shattuck Avenue. Figure 1, below, provides an aerial view of

the surrounding area. The building currently contains a T‐Mobile wireless facility.

Durant Avenue

Figure 1 ‐ Aerial View of the Vicinity

2065 Rose St


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Background

AT&T is licensed by the Federal Communications Commission to operate in portions of the PCS

(1950 MHz), Cellular (870 MHz), and LTE (700 MHz) frequency bands. ATT commonly deploys

three different technologies in its wireless infrastructure: GSM, UMTS and, most recently, LTE

to deliver voice and data services. LTE is the new international standard for 4th generation

wireless services (4G). This application is for the construction and operation of a new AT&T

wireless facility, collocated with an existing T‐Mobile facility, to support services in these

frequency bands using the technologies stated. Details are provided below.

Proposed Site Configuration

The applicant has proposed to install antenna systems and equipment at the existing building.

Specifically ATT is proposing to:

1. Install a total of twelve (12) antennas in three sectors and ancillary equipment for GSM,

UMTS and LTE services:

• Eight (8) antennas, comprising Sectors A and C, will be housed within four radomes,

each containing two antennas. Sector A antennas are oriented at 20°, while Sector C

antennas are oriented at 140°. The proposed antenna height is 37’ above ground

level to the center line of the antenna.

• Four (4) antennas, comprising Sector B, will be housed within four radomes, each

containing one antenna. Sector B antennas are oriented at 260°. The proposed

antenna height is 37’ above ground level to the center line of the antenna.

2. Each antenna is a Kathrein Model 800‐10765K, broadband antenna with dimensions of

78.3”H x 11.8”W x 6”D.

3. Equipment cabinets and smaller, miscellaneous equipment boxes are to be located in a

dedicated equipment area adjacent to the rear of the building.


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Figure 2 – Antenna Installation Locations

Methodology

In conducting a peer review, RCC reviews and analyzes site application documents against

wireless industry standards and best practices. In this case, RCC considered the application

and supplemental materials submitted by AT&T, including the plans by Streamline Engineering,

dated July 17, 2012, the RF report by Hammett and Edison, Inc., dated June 12, 2012, and the

coverage maps, dated November 16, 2012. The coverage maps depict the modeled existing

coverage from adjacent sites, and the combined planned coverage, including the new site

(marked as Figures 3, and 4, respectively).

Existing T‐Mobile Antennas

Antenna Sector B at 260°

Antenna Sectors A at 20° and C at 140°


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Figure 3 – Modeled Existing Coverage from Adjacent Sites (3G)

Figure 4 – Modeled Post‐Implementation Coverage (3G)

2065 Rose Street

2065 Rose Street


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Justification for the Site Modification

AT&T has stated that the design objective for this site is to eliminate a service gap in its wireless

services, particularly in‐building and in‐transit. The specific coverage gap is defined as the area

roughly bounded by Eunice Street to the north, Vine Street to the south, Grant Street to the

west and Euclid Avenue to the east. Existing AT&T site CNU 4552, located approximately three

blocks south of the proposed site, does not provide sufficient signal levels to service the

intended target area with reliable in‐building and in‐transit coverage. (See Figure 3.) The

design objective for most wireless carriers serving areas such as this is to achieve reliable in‐

building coverage. It is RCC’s opinion that, based on the information provided, AT&T has

demonstrated a coverage gap in its network in the area in terms of in‐transit and in‐building

service, and that this gap will be substantially mitigated by the activation of services from the

proposed site.

Alternatives

AT&T provided a brief analysis of several alternative sites it has considered, including:

• Alternative 2: 1400 Shattuck Avenue

• Alternative 3: 1444 Shattuck Avenue.


• Alternative 5: 1401 Walnut Street


The report did not contain sufficient information for RCC to analyze and render an opinion as to

the technical feasibility of these alternative sites. However, it can be stated that single story

buildings would require an elevated antenna supporting structure to provide substantially

equivalent levels of coverage as that offered by the proposed location.

Radio Frequency Emissions Safety

RCC has reviewed the report prepared by Hammett and Edison, Inc. on behalf of AT&T, dated

June 12, 2012, and concurs with its conclusion that the proposed antenna installation, with

implementation of the recommended warning signage, will comply with the Federal


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