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digital radio in action - Hytera Communications Corporation Limited

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CASE STUDY: MARCUS COMMUNICATIONS<br />

Br<strong>in</strong>g<strong>in</strong>g two-way <strong>radio</strong> cl<br />

Marcus<br />

<strong>Communications</strong><br />

based <strong>in</strong><br />

Manchester,<br />

Connecticut <strong>in</strong><br />

the US, is the<br />

largest trunked <strong>radio</strong> network operator<br />

<strong>in</strong> the State of Connecticut. Its trunked<br />

<strong>radio</strong> communications network covers the<br />

whole state and provides services for a<br />

wide variety of end-users <strong>in</strong>clud<strong>in</strong>g police,<br />

firefighters, healthcare, enterprises and<br />

taxi companies.<br />

Right from the start, Marcus has strived<br />

to deliver technical excellence to its<br />

customers <strong>in</strong> the field of two-way wireless<br />

<strong>radio</strong> services. Over the past 33 years, it<br />

has taken part <strong>in</strong> countless events where<br />

its technical know-how and agility were of<br />

vital importance <strong>in</strong> deliver<strong>in</strong>g successful<br />

outcomes. The Marcus <strong>Communications</strong><br />

team rema<strong>in</strong>s dedicated to its customers<br />

and community, while cont<strong>in</strong>u<strong>in</strong>g to<br />

make significant breakthroughs <strong>in</strong><br />

new technology.<br />

However, the global rise <strong>in</strong> <strong>digital</strong><br />

Marcus Pilot System Coverage Map (Mobile)<br />

As demand for improved communications <strong>in</strong>creased,<br />

Connecticut-based analogue trunked <strong>radio</strong> network operator<br />

Marcus <strong>Communications</strong> realised it had to upgrade its exist<strong>in</strong>g<br />

services to bus<strong>in</strong>ess and public safety users, and so it turned to<br />

<strong>Hytera</strong> for an improved DMR Tier III <strong>digital</strong> system<br />

communications technology prompted<br />

the company to review its services.<br />

At present, Marcus provides two-way<br />

<strong>radio</strong> leas<strong>in</strong>g and network ma<strong>in</strong>tenance<br />

for bus<strong>in</strong>ess users, along with a full set<br />

of communication services for public<br />

safety users. But as the demand for more<br />

and better communications <strong>in</strong>creased,<br />

Marcus gradually realised the <strong>in</strong>feriority<br />

of its analogue LTR (logic trunked <strong>radio</strong>)<br />

communication and data services.<br />

BLIND SPOTS<br />

End-users often compla<strong>in</strong>ed that its LTR<br />

network delivered unclear audio quality<br />

and po<strong>in</strong>ted to exist<strong>in</strong>g bl<strong>in</strong>d spots <strong>in</strong> its<br />

coverage. In addition, taxi companies<br />

ma<strong>in</strong>ta<strong>in</strong>ed a wait-and-see attitude towards<br />

further <strong>in</strong>vestment, as the network was<br />

unable to provide adequate levels of GPS<br />

service for track<strong>in</strong>g the whereabouts of<br />

taxicabs. F<strong>in</strong>ally, public safety users look<strong>in</strong>g<br />

for a <strong>digital</strong> option were put off leas<strong>in</strong>g<br />

Project 25 (P25) equipment supplied by<br />

Marcus, because of the high rental charges.<br />

The limitations of Marcus’ LTR analogue<br />

<strong>radio</strong>s for voice communications and data<br />

services, along with the off-putt<strong>in</strong>g cost of<br />

its P25 equipment, lost the company a lot of<br />

bus<strong>in</strong>ess. It needed to f<strong>in</strong>d a cost-effective<br />

alternative to its analogue product, which<br />

could provide a more advanced technical<br />

solution for its range of customers.<br />

The company had to f<strong>in</strong>d a <strong>digital</strong><br />

solution capable of provid<strong>in</strong>g trunked<br />

<strong>radio</strong> services, but one that was more<br />

cost-effective than the P25 equipment<br />

commonly used by first responders <strong>in</strong> the<br />

US. Advances <strong>in</strong> the DMR (<strong>digital</strong> mobile<br />

<strong>radio</strong>) standard over the past two years<br />

mean that DMR Tier III now provides a<br />

trunked version.<br />

● Level 5: Crystal clear without noise<br />

at the background<br />

● Level 4: Good voice quality<br />

● Level 3: Acceptable and<br />

comprehensible voice quality with<br />

some background noise<br />

● Level 2: Barely comprehensible with<br />

high noise background<br />

● Level 1: Not comprehensible<br />

B: For Bolton Site<br />

H: For Haddam Site<br />

A: For Avon Site<br />

TIER III TRUNKING<br />

Marcus assessed the various DMR (<strong>digital</strong><br />

mobile <strong>radio</strong>) products on the market and<br />

was particularly impressed with the high<br />

quality of <strong>Hytera</strong>’s equipment. As a result,<br />

Marcus decided to replace its exist<strong>in</strong>g<br />

network <strong>in</strong> stages with <strong>Hytera</strong>’s DMR Tier<br />

III trunk<strong>in</strong>g system.<br />

<strong>Hytera</strong> ensured its DMR Tier III trunk<strong>in</strong>g<br />

equipment met the particular demands of<br />

its customer. In the first phase, three DMR<br />

trunked base stations were deployed <strong>in</strong> the<br />

LTR network <strong>in</strong> Box Mounta<strong>in</strong>, Avon and<br />

Haddam. This provided coverage <strong>in</strong> the<br />

10

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