digital radio in action - Hytera Communications Corporation Limited
digital radio in action - Hytera Communications Corporation Limited
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