Key Benefits of Digital Technologies in Two-Way Radios

Key Benefits of Digital Technologies in Two-Way Radios
Key Benefits of Digital Technologies
in Two-Way Radios
Dear Two-Way Radio User:
The Story of Two Signals
A “smart” revolution is transforming two-way radios. Digital technology is radically improving
functionality and performance in the same way that advancing technology turned the
smartphone from a luxury item into a device owned by more than half of American adults.
In the beginning, there was analog technology, which uses frequency modulation (FM)
to produce a continuous wave with the voice signal. An analog two-way radio works as
both transmitter and receiver, with that continuous wave in between. Analog has been the
primary technology platform since the initial development of wireless communications.
Analog radios have been used for business applications as far back as 1933.
Digital technology is opening the door to a host of functions for two-way radios, even as it
enhances capacity, coverage, audio quality, and battery life. And like modern smartphones,
digital two-way radios are more affordable than ever.
This guide describes the capabilities and benefits of the latest digital two-way radios.
It explores the differences between analog and digital technology and the benefits of going
digital. Plus, it offers advice on how to make the transition. The options have never been
greater. And thanks to backward compatibility, the move to digital can easily be phased in
over time.
There are many exciting new digital products available. BearCom is delighted to lead the
way in assisting organizations around the country as they adopt this progressive technology.
Please let us know how we can help you harness the power of digital performance to
improve your wireless communications capabilities.
Jerry Denham
President & CEO, BearCom
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
The Story of Two Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Along Comes Digital . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Four Reasons to Go Digital . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Analog Advantages: The integration of such a simple system into a single computer
chip has dramatically reduced the cost of analog radios.
Analog Disadvantages: The analog radio system has many functional limitations, and
the technology has been around so long that the scope of possible innovations is
virtually exhausted.
Along Comes Digital
Digital two-way radios operate by encoding,
transmitting, and decoding sound waves. The
signal is represented by binary numbers—1s and
0s—that correspond with voltage values. Inside
the radio, the vocoder—an analysis/synthesis
system used to reproduce human speech—
encodes the transmission. The radio sends the
signal, and the vocoder on the receiving end
decodes it.
In addition, the software in digital radios contains
an algorithm that recognizes the difference
between voice and background noise and
cancels undesirable audio for clearer, cleaner
sound quality.
“The advent of the digital
two-way radio is having a
dramatic impact on users of
wireless technology. It has
opened up a new world of
possibilities for significant,
innovative enhancements in
~Mark Crosby, President & CEO
Enterprise Wireless Alliance
By proactively transitioning to digital radios now, your organization will enjoy greater
benefits immediately, and your fleet is ready for the high-efficiency innovations coming in
the future.
Moving to Digital . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Vertex Standard Introduces eVerge Two-Way Radios . . . . . . . . . . . . . . 5
eVerge—A New Standard of Excellence . . . . . . . . . . . . . . . . . . . . . 6
Frequently Asked Questions . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Four Reasons to Go Digital
Improved Audio Quality
Enhanced Clarity throughout the Coverage Range
Greater Efficiency
Less Battery Drain
1. Improved Audio Quality: Digital technology reduces external background noises during
transmission, thereby making the digital technology platform ideal for situations such as
noisy manufacturing and processing plants, or outside in windy conditions.
2. Enhanced Clarity throughout
the Coverage Range: While
an analog radio is capable of
producing a clear signal within
its peak performance range,
once the signal moves too far
from the transmit point, the
analog audio will slowly fade
out until it is unrecognizable. By
contrast, a digital signal stays
much stronger and clearer to
the limits of the coverage range.
3. Greater Efficiency: Digital
radios operate in Dual-Capacity
Transmission Point
Maximum Range
Direct Mode (DCDM), which
means that radios can share
the same channel by alternating time slots. These time slots move incredibly fast, and
since they alternate, more simultaneous talking paths are possible on each channel with
no degradation. Plus, key information such as unit ID, status buttons, and enhanced text
messages can be embedded into a single digital radio channel. In many cases, migrating
from analog to digital allows users to increase talk paths without a repeater.
4. Less Battery Drain: Since digital radio transmitters are not constantly “on,” radios used
in digital mode experience lower current drain in transmit mode than analog radios. The twoslot Time Division Multiple Access (TDMA) protocol cuts transmit time in half, which creates
the opportunity to achieve up to 40% battery life improvement.
Moving to Digital
For those switching from analog to digital, there is good news: Digital platforms provide
a migration path that allows for simultaneous use of digital and analog radios. Backward
compatibility allows organizations to gradually replace analog devices with newer digital
models without the added stress of shifting to a new system. Also, many analog radio
accessories are compatible with digital devices.
Vertex Standard Introduces eVerge Two-Way Radios
Based on the features, form factor, and design of the popular VX-450 Series of two-way
radios, Vertex Standard is now offering the eVerge line, which delivers new choices in
digital technologies. The progressive eVerge models help users evolve and emerge to
better two-way radio communications. The eVerge line is precision-engineered to deliver
outstanding value and ease of use without sacrificing quality–giving commercial and
industrial users more capabilities and greater flexibility at an affordable price.
eVerge EVX-531
eVerge EVX-534
eVerge EVX-539
The EVX-530 Series is at the heart of the new eVerge digital radio portfolio. Your choice
of the EVX-531, EVX-534, and EVX-539 add sensible options to your two-way radio fleet
with operating capabilities that can be converted from analog to digital operation. That
means you can take a phased migration approach by using your eVerge radio as an analog
device now, and then with a simple programming change, switch to digital operation at any
time in the future. Or, you have the option to take out-of-the-box delivery in digital mode
from the outset.
eVerge–A New Standard of Excellence
Digital-capable eVerge radios offer ideal choices for customers who are looking for clearer
audio quality, better coverage, and more privacy without higher equipment costs. These
versatile radios are designed to work with existing analog devices for easier conversion.
The eVerge EVX-530 Series of two-way radios feature:
Operation: Analog and digital
Channels: 32-512
Power: 5W (VHF & UHF)
Size/Weight: 4.1”H x 2.3”W x 1.34”D, 9.9 oz.
Waterproof: IP-57 fully submersible rating
Call Management: Place direct calls to individuals, groups,
or all (in digital mode)
eVerge EVX-531: Easy-to-use, economical design
-32 channels, 2 groups, 3 programmable keys
eVerge EVX-534: Full display for greater flexibility
-512 channels, 32 groups, 7 programmable keys
eVerge EVX-539: Greater functionality with 9 programmable keys
-Direct dialing, stored IDs/contacts, site messaging, and more; 512 channels, 32 groups
The eVerge EVX-534 and EVX-539 display radios deliver enhanced communication and
privacy, including:
Text Messaging: Provides an ideal option when voice communications is not practical
Auto-Range Transpond System (ARTS) II: Enables users to monitor their connection
status with other users by radio ID
eVerge EVX-5400 Mobile Two-Way Radio
Designed to make mobile radios better with digital capabilities
Channels: 512
Power: 5-50W (VHF), 5-45W (UHF)
Size/Weight: 1.8”H x 6.5”W x 6.1”D, 2.8 lbs.
eVerge EVX-R70 Repeater
Dynamic mixed mode repeater supports both analog and
digital operation
Frequently Asked Questions
Features and Functionality
Q: Why should we go digital?
A: The two-way radio market is clearly moving toward digital platforms. One such example
is the introduction of the Vertex Standard eVerge line featuring improved audio quality,
enhanced coverage, greater efficiency, and added battery life.
Q: Isn’t digital more expensive?
A: Digital radios use components that are generally more expensive than analog models;
however, the price difference has narrowed dramatically in recent months. In fact, now
basic digital systems are often comparably priced to analog.
Q: Is it worth paying a bit more for digital?
A: It’s a good idea to evaluate for yourself if the added features that digital delivers are
worth the moderate price difference. Many users conclude that improving sound quality
over the full radio range is enough by itself to justify the added investment.
The Future of Analog
Q: Will analog radios become extinct?
A: Analog radios are still a popular choice when users don’t want or need feature-rich
equipment. Analog technologies may remain in use among lower grade consumer models
for many years to come.
Q: Are my analog two-way radio accessories compatible with digital models?
A: It depends. Vertex Standard now offers a standardized, universal charger (single and
multi-unit models) compatible with most Vertex Standard radios, both analog and digital. Users in mid-migration with mixed fleets benefit with one set of chargers to keep their
fleet at peak performance levels. For customers currently using VX-450 radios, it is
also possible to share batteries with the EVX-530 Series. However, certain earpieces,
headsets, and speaker-mics are optimized for digital models. You should always check
the product and packaging for compatibility.
Next Steps
Q: How can I get the best value when selecting digital two-way radios?
A: To save money and get the right two-way radios for your environment, find a provider
you can trust. In addition, work with a company that carries high-quality products and has
plenty of wireless expertise. To help with your digital migration, you can rely on BearCom.
Channels: 16
Power: 45W (VHF), 40W (UHF), 100% continuous duty
Size/Weight: 5.2”H x 19”W x 11.7”D, 31 lbs.
BearCom: America’s Only Nationwide
Wireless Dealer and Integrator!
Corporate Headquarters
= Corporate Headquarters
Call us today at one of our 26 branches for immediate
sales, service, and digital migration assistance:
Atlanta, GA
Detroit, MI
Portland, OR
Ft. Lauderdale, FL
Riverside, CA
Boston, MA
Houston, Tx
Sacramento, CA
Chantilly, VA
Las Vegas, Nv
San Diego, CA
Chicago, IL
Los Angeles, Ca
San Francisco, CA
Columbus, Oh
Seattle, WA
Costa Mesa, CA
New York, NY & NJ
St. Paul, MN
Dallas, TX
Orlando, FL
Washington, DC
Denver, CO
Philadelphia, PA
For sales outside the above areas, call 800.527.1670.
For service or repairs outside the above areas, call 800.449.5695.
BearCom Headquarters
P.O. Box 559001
Dallas, TX 75355
Vertex Standard is a trademark of Vertex Standard LMR, Inc.
All other trademarks are the property of their respective owners.
©2014 Vertex Standard LMR, Inc. All rights reserved.
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