DAS Headed at San Diego Convention Center

Digital Antenna System Improves Cellular Coverage at San Diego CC

AT&T cellular data speed at San Diego Convention Center

AT&T cellular data speed at San Diego Convention Center

Connectivity Wireless is honored to be the the integrator of the Corning ONE DAS™ for Smart City Networks at the San Diego Convention Center!

Telecommunications provider for the convention industry, Smart City Networks, has announced completion of a new distributed antenna system (DAS) designed to expand the cellular service coverage and capacity at the San Diego Convention Center in California, USA.

“This new system is going to make a noticeable difference for everyone who attends an event or convention at the San Diego Convention Center,” said Julia Slocombe, vice-president of Western Region Operations for Smart City Networks.

“This was a massive upgrade, but it reiterates our commitment to deliver exceptional experiences through technology and San Diego’s commitment to be one of the leading meeting and convention destinations in the world.”

The installation of the DAS system involved plotting and installing hundreds of miniature antennas at secure points throughout the convention centre that connect to the networks of various cellular carriers, including AT&T and T-Mobile.

The DAS reduces gaps in coverage created by steel or concrete pillars, isolated niches, and other architectural features that disrupt the signal between the phone and the devices receiving the messages. The result is the elimination of dead spots and improved reliability of the network.

“We are excited to offer our guests and customers yet another amenity to continue to make our facility the region’s premier gathering place,” said San Diego Convention Center Corporation president & CEO Clifford ‘Rip’ Rippetoe.

Smart City also installed a two-way radio system throughout the convention center that allows communication anywhere in the facility.

Implementation of the project took just over two years.

The convention centre brings about 900,000 visitors to San Diego every year.

Checkout the online CMW article here: http://www.c-mw.net/digital-antenna-system-improves-cellular-coverage-san-diego-cc/


Peering Into the Crystal Ball: The Future of Wireless Technologies for ICT Professionals

View the online magazine version here [ICT Today, September/October Issue]



he CTI industry is entering a new era of incredible growth in wireless demands, number of users and devices, access technologies. Designers, installers and advisors must accommodate all of these factors as help our clients plan new building structures. Key to providing good guidance is a thorough understanding of wireless technologies and where we are going. Developing an understanding of these trends is particularly important now because:

  • Wireless technologies can provide the needed bandwidth for almost all business and personal applications. No longer does a user require a dedicated category or fiber cable to their computing device. In fact, very few of today’s laptops and tablets come with an RJ-45 port.
  • User demand for mobility has created a “new normal” where everyone uses their cellular device(s) everywhere, for almost anything, all the time. According to CTIA, heavy users now spend 225 minutes per day on their phone.
  • New demands for device-to-device connectivity (much of which is embodied in the Internet of Things or IoT) will drive future wireless requirements. Machina Research estimates there will be 18 billion mobile-to-mobile connections by 2022.
  • Moore’s Law (which states that the number of transistors in a dense integrated circuit doubles every two years) continues unabated, driving down the cost of computing systems and increasing their capability and relevance.


For ICT professionals, these factors must be taken into account, along with the reality that we live and work in buildings, and thus we should design and construct the ICT systems in these buildings with this in mind. Modern building designs follow Leadership in Energy and Environmental Design (LEED) criteria which usually include shell and skin materials that are thermally efficient but that also block RF signal. Among other requirements, an RCDD® or engineer must figure out how to get the wireless signals in and out of the building.

They must also specify:

  • Media (cabling) used to transport wireless signal to antennas or access points (Aps)
  • Power and space requirements for wireless active network devices.
  • Density of users


There are three main classes of technologies that experts agree will be critical to the future of wireless. These classes consist of wireless personal area networks (WPAN), Wi-Fi and cellular. Not all of them are applicable for every building, every user, and every device, but they are all critically important.



WPAN (IEEE 802.15) covers those networks that will be needed for many of the devices in the IoT and is an excellent choice for areas inside buildings. WPAN devices are made up of sensors, chips, radios and long-life batteries. In many cases all of these components are combined into what is called a system on a chip (SoC). Sensors provide information for a wide range of inputs, including temperature, light, motion sensing, gas and particle detection, and other environmental factors.

With the majority of these devices, the amount of data captured and shared is small (think kilobytes, not megabytes). Thus, the wireless networks that enable them do not need to be high capacity. Picture an IoT device that monitors temperature in many areas of a factory that produces heat-sensitive widgets. The sensor might measure temperature every 15 minutes and sends that data to a controller. WPAN technologies like Bluetooth® LE (low energy) is ideal for this application, with a range of ˜50 meters (m [164 feet (ft)]) and low-data capacity.

Just as importantly, these sensors require very little power to send and receive the wireless signal; if engineers can continue to create systems powered by very small and very inexpensive (yet long-lived) batteries, the return on investment of these devices becomes compelling. In many cases they are supported by tiny coin cells or power supplies that can last five or more years. Designers are also striving to make them self-sustaining by means of ambient energy harvesting, in which the devices themselves derive their power from solar cells, kinetic energy or heat. Picture an IoT sensor in a factory placed on a motor that vibrates – no power supply is needed.

WPAN are generally mesh or peer-to-peer networks. They communicate directly with each other and do not require an infrastructure to support them, thus building designers do not really need to account for them in terms of cabling media or power. ZigBee™, for example, has a line-of-sight range of ˜10-20 m (33-66 ft). Z-Wave is a wireless protocol designed to operate between nodes up to ˜30 m (100 ft), with a capacity up to 40 kilobits. Many current and future applications inside buildings can be well served by these low-capacity, low-range,and low-power wireless networks.



Wi-Fi is the second class of network that is critical to our wireless future. Users have come to expect Wi-Fi in every building, regardless of type. Wi-Fi is also crucial because, unlike WPAN networks which are low-speed, future Wi-Fi promises optical fiber-like speeds. One of the next versions of Wi-Fi just around the corner is 802.11ad (also known as WiGig) which will operate in the 50-60 gigahertz (GHz) range and offer multi-gigabit throughput to each user device. Several challenges with 802.11ad today are that it may be limited to very short range (˜1-10 m [3-33 ft]), and this V-band frequency does not penetrate building structures very well. In addition, the capacity of the network will be increased using a technique called beamforming, in which arrays of antennas will be pointed or formed more directly from sender to receiver, as opposed to today’s omnidirectional antennas which distribute wireless signal in a circular or donut-shaped fashion.

Today designers plan for robust Wi-Fi by following either a honeycomb grid pattern (ISO/ IEC TR-27404) or a square grid (TIA TSB-162-A) in the building for placement of Aps and media to support them. In the future, RCDDs and network planners might have to account for a more dense design of Wi-Fi APs, as well as using optical fiber rather than category cable to accommodate higher capacity Wi-Fi technologies.


Licensed Spectrum

The third class of wireless network connectivity important for building designers is licensed spectrum owned and managed by cellular carriers. Cellular coverage is key, because it will serve users and devices inside and outside every building. We want to use our smartphones, and soon-to-be super-smart phones, anywhere we may go. The field of personal mobile digital assistants is growing to include wearables and medical monitoring devices. Additionally, other devices will require connectivity in the outside world; for example, the next 20 years will see the introduction of self-driving cars.

Future development of smart cities will drive the need for connectivity of systems and devices outside of building structures. Cellular technology will be critical to the enablement of such applications as monitoring of outside entities like electric grids and pipelines for water and energy. IoT devices will monitor and measure these systems, reducing waste, leakage, theft and component failure. There is tremendous potential gain in agriculture with the control and monitoring of crops, from the precise GPS-enabled automated planters which direct the exact optimal placement of every seed, to targeted application of herbicide and fertilizer based on unique soil conditions down the square meter. Most of these systems and equipment will need outside and inside connectivity that is best served by cellular networks.

5G is the next generation of cellular, and with a standard expected in 2021. Network operators and cell phone manufacturers are planning for systems that offer 10 to 100 times today’s data rates and five to 10 times reduced latency. Users will have fiber-like connectivity to their mobile devices, and reduced latency (in the range of 1 to 5 milliseconds [ms]) means that they will be able to interact with cellular devices in a manner that mimics the response times of the human nervous system (this has created the term “the tactile internet”). This will open a wide range of possibilities to enable virtual reality, gaming and training and simulation exercises.

Reduced latency means that device and system engineers will embed haptic (touch) interfaces in devices, some of which exist already in today’s phones. Users will be able to interact with their devices by tapping, pushing and gesturing, and receive a response from actuators that make it feel like the device is an extension of themselves. For example, today’s virtual reality devices like the Oculus Rift have a latency of 15 to 20 ms, which is why many users get sick or disoriented from the experience.Reducing latency to the 1 ms level in tomorrow’s 5G network will drive new methods of immersive interactions with our machines.

Accommodating 5G indoors may be challenging for ICT building designers. The planned spectrum for 5G, like future Wi-Fi, will be the V-band of frequencies that range from 30 to 80 GHz, and these bands do not penetrate today’s modern building materials. Range of 5G antenna arrays may be limited to an extremely short distance of 9 m (30 ft). As with future Wi-Fi, for 5G we will likely use beamforming and create systems that employ massive multiple-input, multiple-output (MIMO) technology, which is being employed today to increase capacity of cellular systems. Massive MIMO simply means a much larger number of antennas in both handheld devices and system APs. In 2015, Samsung® created what they called their first 5G phone and integrated 32 antennas within the device. In the ceiling AP, massive means hundreds of antennas arranged in an array. The future may see APs that are as large as today’s light fixtures.

Distributed Antenna Systems (DAS) will continue to be deployed to support tomorrow’s licensed spectrum and offer building owners complete 5G coverage from all operators, in every corner of the facility. Network designers will continue to accommodate base station or head-end equipment, but in the future there will be advances to drive down both the size and cost of head-end equipment, providing better economies of scale for customers. Future DAS will utilize more optical fiber-based media than today’s legacy coaxial cable systems, and likely have lower power requirements, driving down building operational costs and making systems more affordable.

DAS will also be needed in many cases to support tomorrow’s public safety radio requirements. There has been a proliferation of new building codes (IFC, NFPA) that mandate coverage for police, fire and first responder radio systems inside buildings in most areas of the US. Local authorities having jurisdiction (AHJs) will continue to enforce these rules, which they deem critical to life safety, as noted for example in the City of Marlborough MA fire code:

Research and investigations into Line of Duty Deaths (LODDs) and injuries to Fire, Police and EMS personnel show that the loss of reliable communications inside of such buildings is a contributing factor in death and injuries to emergency personnel.

Frequencies for public safety radios range from 150 megahertz (MHz) to 800 MHz today. Tomorrow we will have FirstNet, the nation’s first all-new interoperable radio system that allows all first responders to utilize the same network.  FirstNet is the last recommendation of the 9-11 Commission and is now finally being planned. FirstNet has bandwidth at 700 MHz allocated for operation, and there is strong interest to enable higher capacity, commercial LTE technologies for first responders in the future. LTE will allow for richer, multimedia applications, mobile video and other tools that will give first responders greater situational awareness and the capability to do their jobs better.



Lastly, light fidelity (Li-Fi) could be a significant game changer in the indoor wireless space. Li-Fi is wireless, but instead of using RF for data transmission, it uses light from blinking LEDs to provide high-speed communication. Applications would be limited to in-room systems, since light cannot penetrate walls, but the capacity could be enormous. The spectrum for visible light is 10,000 greater than the spectrum for radio frequency, and early tests have indicated significant data throughput.

The new normal of wireless everywhere is fast approaching. Cisco cites global mobile data growth at a compounded annual growth rate (CAGR) of 63 percent per year. The current licensed wireless spectrum is saturated, and it takes almost a decade for network operators to build and deploy on new bands from the time they are first identified, including the incentive auction of 600 MHz spectrum taking place in mid-2016. Users are demanding advice about how to incorporate future technologies in the structure being designing—the same structure that will not be occupied for another two or three years.



Given all that is known about greater demands for bandwidth for every type of connected device, the discussion centered on “when is optical fiber to the desk going to make sense?” comes to mind. Many in the ICT industry have debated this topic for the last 20 years, as various cycles of copper category cables have emerged. The question was prompted by the fact that the desk was where a user workstation or terminal was located. Perhaps the time has come for the same type of discussion, but instead of fiber-to-the-desk, it should center on fiber-to-the-user. Passive optical LAN (POL) might be one solution for some building or campus owners who want to leverage their infrastructure and be prepared for tomorrow.

Single mode fiber optic cable remains unlimited in terms of bandwidth. In the public network, carriers drive terabytes over hundreds of kilometers. Why not deliver an infrastructure for buildings that brings singlemode fiber as close to the user as possible? Imagine optical fiber from the facility entrance all the way to the edge, to allow for the very near future needs of LAN, cellular and Wi-Fi that will all have multi-gigabit network capacities.  The term “future proofing” is arguably one of the most overused terms by ICT professionals, but in reality an optical fiber-to-the-user or fiber-to-the-edge strategy may offer the longest useful life and lowest overall cost to a facility owner with long-term plans that include these wireless technologies.

Author: Mark Niehus, RCDD – Mark is a Director of Strategic Accounts for Connectivity Wireless Solutions. He has more than 25 years of ICT installation, project management, and sales and marketing experience. He has been an RCDD since 1997 and has a BA in English from the University of Iowa and an MBA from the University of Phoenix.

Bridging the Gap: Connectivity Wireless Feature Article

Check out our latest feature in Construction Today magazine for a snapshot of our cutting-edge services and operations in today’s growing in-building wireless market: http://digital.construction-today.com/nxtbooks/knighthouse/ct_201610/index.php#/38

HEARN Takes Prominent Chicago High-Rise to New Heights with Wireless Infrastructure

Proud to have served as the integrator on this project! Check out details of the system below:

CHICAGO, Aug. 24, 2016 /PRNewswire-USNewswire/ — Mobilitie, the largest privately-held wireless infrastructure provider in the United States, today announced that prominent Chicago-based real estate company, HEARN, is delivering quicker and more reliable mobile connectivity to 70 West Madison’s nearly 5,000 daily tenants and visitors representing many of Chicago’s top legal and financial firms.

U.S. mobile data usage is expected to increase by more than 600 percent through 2018, and even today, 80 percent of mobile calls originate indoors, making it critical for tenants to have reliable wireless connectivity at all times. HEARN needed a solution design that could handle wireless demands at any level, particularly as the number of tenants and visitors increase and decrease each day.

To meet the needs of the facility, HEARN selected Mobilitie to design, build and operate a Distributed Antenna System (DAS) covering 1,450,000 square-feet in the 57-story property, enhancing mobile access for tenants and visitors alike. Mobilitie’s DAS has more than 37,500 feet of coaxial cable that was used to connect across the building’s 57 stories.

“Mobilitie’s intelligent design for 70 West Madison supports the need for better wireless coverage within large office buildings, especially in dense urban areas like Chicago,” said Christos Karmis, President of Mobilitie. “We’re excited to be partnering with HEARN to deploy and operate the DAS, and we’re confident that tenants and visitors at 70 West Madison will be thrilled with the enhanced wireless connectivity.”

View the full press release here 

One World Trade Center Press Release and Video

Robust In-building Wireless Systems Enable Premier Safety and Enterprise Communications for One World Trade Center

Towering 1,776 feet over lower Manhattan, One World Trade Center is an instantly iconic building, holding deep meaning for New Yorkers and the United States.

Managed by the Durst Organization, the class-A property reopened in October of 2014 in the footprint of the twin towers that fell September 11, 2001. Since the rebuild, One World Trade Center has become one of the most desired office properties in the world, drawing top tenants including Conde´ Nast, Cushman & Wakefield, Moody’s and the U.S. General Services Administration.

In addition to first-class amenities, tenants rely on building management to provide reliable in-building wireless to support their always-on business needs. To provide that level of connectivity, Durst selected in-building wireless integrator Connectivity Wireless to install a robust distributed antenna system (DAS).

The One World Trade Center in-building deployment is “an iconic build in one of the most iconic buildings in the country,” said Clayt Mason, Connectivity Wireless CEO. During 9/11, “One of the biggest challenges that unfolded was the lack of cellular communications and adequate first responder radio coverage. In the rebuild, Durst placed priority on having strong in-building wireless coverage not only for safety reasons, but also for world-class business operations.”

Durst Project Manager John Whitty said the system installed in One World Trade Center eclipses other class-A buildings in Manhattan, which offers some of the highest-end commercial real estate available anywhere.

“We quite often have prospective tenants come into the building,” Whitty explained, “and it’s important to us as the managing agent for the building to have these prospective tenants see that they actually do have cell service whether on the 45th floor or the 100th floor in the building.”

Whitty worked closely with Connectivity Wireless throughout the design, build and deployment process, which culminated in an early and under-budget delivery. “With today’s world and the way things go in the workplace, everybody wants to be connected all the time, and in this building, we actually have that.”

Using Corning MobileAccess GX equipment, Connectivity Wireless installed more than 1,000 indoor antennas to build out a DAS providing coverage to some 3-million-square-feet of rentable office space, along with mechanical, visitor and other common areas of One World Trade Center. The DAS install required more than 30 miles of fiber optic and coaxial transmission cable.

Keith Martin of Corning shared his thoughts on partnering with Connectivity Wireless on the One World Trade Center project: “They have a great track record of making the right choices for the long-term technologies that their end users need. We tend to go to them when we just need things to go right.”

Martin lauded the in-building wireless project, as well as the stakeholders: “There’s just a great sense of pride because this building symbolizes everything about not only American resiliency, but also about innovation and technology. You have to give a lot of credit to Durst to have the foresight to have put such a robust system into the building.”


View the original RCR Wireless press release here: http://www.rcrwireless.com/20160824/network-infrastructure/case-study-bringing-building-wireless-one-world-trade-center-content-provided-connectivity-wireless-rcr

Four Costly Public-Safety DAS Mistakes You’re About to Make

Check out the digital article here  >> HetNet Magazine article

With public-safety DAS deployments costing upwards of a million dollars for large venues, overlooking the new code standards—even if they have not been adopted today by your jurisdiction—would be a costly mistake. But armed with a bit of knowledge, proper planning, and some creative problem-solving, you can be part of the 10 percent that get it right.

I know what you’re thinking: “He said impending code, but my deployment will be grandfathered.” Maybe, but many counties, cities, and municipalities don’t like the thought of first-responders losing radio coverage as they cross the threshold into a burning building. Therefore, many counties, like Summit County, CO, and municipalities like Schaumburg, IL, are enforcing codes retroactively.

To better understand the value of proactive code compliance and to fully gauge the impact of four significant code changes, we examine the ongoing efforts at Phoenix Convention Center (PCC) to bring their facility up to the latest fire safety standards, even though the city of Phoenix has yet to adopt the latest code.

In 2013, PCC was struggling to operate and maintain public-safety and cellular DAS equipment from Powerwave Technologies, who filed Chapter 7 bankruptcy the same year. To remedy the situation, PCC turned to their technology services provider, Smart City, to deploy and manage a new state-of-the-art public-safety and cellular DAS. In turn, Smart City engaged DAS integrator Connectivity Wireless to design, deploy, and maintain both the cellular and public-safety DAS. “In the past, Smart City relied on Connectivity Wireless to deploy cellular-only DAS­­­­­­, but the PCC project gave us the opportunity to leverage our public-safety expertise,” says Bryce Bregen, VP of sales and marketing at Connectivity Wireless. PCC and Smart City had the foresight to build the public-safety DAS to NFPA 2015 standards, but that decision presented a set of challenges the project partners would need to overcome.

Raelyn Thomas, Connectivity’s project manager, identified the greatest NFPA code challenges they encountered: circuit survivability, two-hour fire-rated IDF closets, two-hour fire-rated cabling, and system monitoring.

How Thomas’s team addressed these requirements provides a cautionary tale for others planning to deploy a public-safety DAS.

Editor’s note: NFPA and IFC codes are complex and ever-changing; the following lists, descriptions, and interpretation of fire codes should not be considered a substitute for obtaining a thorough and professional review of the fire code as it relates to your deployment:

1.    Pathway survivability: This section of the code epitomizes the motivation behind the code changes. Previous versions of the code focused entirely on the performance of the DAS, with no regard to how a network of cable, antennas, and electronics would operate in the early stages of a fire. Fortunately for PCC, their building was fully protected by an automated sprinkler system in accordance with NFPA 13. This meant that all transmission cables connecting the bi-directional amplifier (BDA) to the coverage antennas would need to be installed in metal conduit; otherwise these cable paths would need to meet a two-hour fire rating.

NFPA allows an exception for radiating cable, aka “leaky coax,” because radiating cable would not radiate inside metal conduit. Although radiating cable was a common, if not preferred, method of distributing RF signals back in the day, today its use is generally limited to subway and tunnel applications. If your intent is to deploy a state-of-the-art public-safety DAS, avoid its use if at all possible.

The requirement for metal raceway was the primary reason Connectivity Wireless decided not to combine the public-safety and cellular DAS. Many active DAS products were design to support cellular and public-safety DAS as a way to save money and mitigate channel interference. However, the survivability requirement of the new code frequently offsets the financial benefits of deploying a combined system. This was the case at PCC, so Connectivity Wireless designers chose to separate the systems and deploy a passive DAS for public safety. Despite separating the systems, over 5,500 feet of conduit was installed at substantial cost to meet this section of the new code.

2.    Two-hour fire-rated cables: NFPA is very particular about protecting the circuits running between the donor antenna and the BDA.  Because coaxial cable companies have yet to manufacture a two-hour fire-rated cable, Connectivity Wireless sought out a solution to transform the coax cable to meet the two-hour rating. Endothermic mat wrap (E-Mat) became the first choice. However, according to Thomas, “Hundreds of feet of riser cable and coax jumpers required E-Mat wrapping at $232/ft. So we turned to 3M to help find a less expensive solution, and they recommended their Fire Barrier Dust Wrap 615+, at a relative bargain price of $85/ft, to accomplish the job.”

PCC ended up using a bit more wrap than originally planned. Because one of the BDAs was in a distant location, it required a fiber-optic cable run and some analog-to-digital conversion to connect it to the donor antenna. Despite this long, horizontal cable run, the authority having jurisdiction (AHJ) did not consider this cable run to be part of the horizontal cable distribution allowed to be installed in a metal raceway/conduit. Therefore, this long run of fiber-optic cable also required the two-hour fire rating.

3.    Two-hour fire-rated rooms: No public-safety BDA or fiber-based DAS electronic equipment meets a two-hour fire rating, and because the electronics typically reside in an intermediate-distribution-frame (IDF) closet, the IDF closets/rooms require the two-hour rating. The good news at PCC was that all of their IDF closets met the code requirement; the bad news was that there was no IDF closet near a remote location where one BDA needed to be installed. The deployment team at PCC considered multiple options, but in the end they were required to build a new fire-rated IDF closet to house the remote BDA.

It appears to me that the code was drafted around the assumption that passive DAS is the predominate choice for in-building radio coverage. Passive DAS works for small to midsize buildings, but it is not technically and financially practical for larger buildings. “NFPA did consider active/fiber DAS deployments when drafting the 2016 code,” says Minfei Leng of Bird Technologies, a principal on NFPA’s Emergency Communications Systems (ECS) Technical Committee.

In my experience, where there was confusion in applying certain aspects of the code to the realities of active/fiber DAS deployments, the AHJs have been able to apply the intent of the code to resolve matters. As a general rule of thumb, consider the fiber-based remote units as BDAs, then apply the code appropriately. This effectively means that your fiber runs (jumpers too) from the fiber-DAS headend unit to the remote units will need to meet the two-hour fire rating. Of course, all rooms housing fiber electronic equipment will need to meet the two-hour rating as well.

4.    System monitoring: This is where it gets interesting. As previously mentioned, the code committee appears to have overlooked the need for active/fiber-based DAS products. (I suppose one could argue that the active/fiber DAS manufacturers have not kept up with the code.) The code requires that the “system” include automatic supervisory signals for malfunction. Items that require supervision are associated with the BDA and power source. This part of the code is not new, so it’s not difficult to source BDAs and backup power systems with dry-contact relay ports to communicate the information to a dedicated monitoring panel (2016 NFPA 1221 Section

The trouble arises when one tries to apply this requirement to an active/fiber DAS product. Most active DAS solutions include some dry-contact alarm ports on their remote units, but most of the alarming is software based, as well as proprietary, making communication to the dedicated monitoring panel, as defined by code, virtually impossible.

Prior  to defaulting to a passive DAS solution for PCC, Connectivity Wireless engineers had debated how to meet the system-monitoring requirement when deploying an active/fiber DAS. These systems are monitored and controlled via a computer terminal with an IP address. In an appeal to the City of Phoenix, the AHJ acknowledged the conundrum and agreed a terminal and monitor was the only option. (My personal experience is that AHJs are reasonable people; if there is not a commercial solution that meets the letter of the code, the AHJs will work with you to achieve the objective, as long as it meets the intent of the code.)

According to author H. Jackson Brown, Jr., “Nothing is more expensive than a missed opportunity.” And fortunately, PCC didn’t miss the opportunity to properly upgrade their public-safety radio coverage. Can you imagine the inconvenience and cost of reinstalling all of your cable in conduit, building out new fire-rated IDF closets, wrapping all of your fiber runs, and potentially scrapping your entire active/fiber DAS?

PCC worked with their partners to overcome four major code challenges, and then some. With proper education, the right deployment partners, and some creative problem-solving, you can also find yourself in the category of the lucky 10 percent who won’t need to worry when the city council votes to adopt the latest edition of NFPA or IFC code.

Additional impending code items you’ll want to consider:

  • Permits for the DAS: Local fire officials may not be aware of the code—I’ve experienced this many times. Make sure your originating source of information is the AHJ.
  • Testing: There are very specific test procedures that must be followed.
  • Minimum qualifications of personnel: Most often the system design requires sign-off by an FCC Licensed Radio Operator. Almost all DAS integrators lack this person.
  • As-built drawings: Specific formatting is required.
  • Power backup: NFPA requires twelve hours; IFC is considering twenty-four hours.
  • Network operations center (NOC) monitoring: Your system will require 24/7/365 monitoring.
  • Channelized BDA: It is often required by the AHJ. Broadband BDAs have the potential to cause adjacent-channel interference. PCC has deployed CommScope’s Node-A channelized BDA.
  • Obstruction by new building: In some jurisdictions, including Sunnyvale, CA, building a new structure that blocks the RF signals into a building that previously had adequate coverage means that you will be picking up the tab for your neighbor’s DAS.


Fast-Paced DAS upgrades at the Kentucky Derby

CWS is honored to have been part of making this distributed antenna system upgrade a success for the 4th consecutive year.

On the outside, stunning red roses, magnificent horses and a plethora of elaborate hats are what the world will see at the 142nd Kentucky Derby on May 7. But behind the scenes is the work on the tech behind the high-speed connectivity for Derby goers at Churchill Downs in Louisville, Ky.

For the fourth straight year, AT&T and Mobilitie have enhanced the capacity for mobile coverage at the Derby. Each year, they upgrade the existing Distributed Antenna System (DAS) by adding antennas in strategic locations. This year’s upgrades have added more than 50% more LTE capacity to the wireless network, with more than 1 million feet of fiber optical cable and 290 antennas in place. Mobilitie owns the DAS infrastructure at Churchill Downs and AT&T is the anchor tenant on the DAS, adding its own equipment, spectrum and radios to the existing DAS infrastructure.

Check out the full article here.

ACUTA Winter Anaheim 2015

January 25-28

Disneyland Hotel

Anaheim, CA

Booth #200


Excited to attend ACUTA Boston with Corning–be sure to stop by booth #200 to chat with our team about the latest DAS technology for higher education and pick up your connection card for our social hour Tuesday 4:30-7 p.m. at the House of Blues in Downtown Disney!




Anixter DAS Summit Houston 2015

January 15, 2015

Norris Conference Center — Houston CityCentre

11:30 a.m. – 5:30 p.m.


Gain insight into the importance of enhancing cellular coverage with this Distributed Antenna System (DAS) Seminar.

Hosted and led by Anixter, this seminar covers potential architectures in campus, corporate and healthcare facilities for covering licensed (cellular) technologies and public safety.

  • Learn how to overcome challenges of In-Building Wireless
  • Expand your knowledge and expertise on different solutions based on your building type and application needs
  • How DAS supports primary Public Safety and Critical First Responders
  • Explore the difference between Enterprise versus Carrier-Funded Models

For further details and to register for the event,  click here