MOBILE RADIO TECHNOLOGY
VOL. 17, NO.7, JULY 1999
Improving microphone technology 18
Michael J. Major
As the use of portable radios with hand- or epaulet-mics increases, users are
demanding more environmental versatility and a wider range of features.
Controlling base stations over microwave 24
Jeff Ashley
New wireless applications have caused increased demand for base station
and circuit transport equipment. Circuit voice frequency and signaling
schemes are necessary in implementing any remote radio system
controlled over microwave.
Product/logo directory 40
Consult this list of leading telecommunications service and
equipment providers.
Watch out for Y2K 42
Nikki Chandler
We're not going to tell you again: Jan. 1, 2000, is looming around
the corner. Agencies and companies not actively fixing their
ystems should be making contingency plans. The FCC finds
medium-sized public safety entities and service providers to be
most at risk.
department
Editorial 4
Don Bishop
See no evil, hear no evil, email no evil.
Calendar 8
Editorial index
Editorial forum 10
David Keckler
Elementary—not secondary.
Letters 12
In the public interest 14
Robert H. Schwaninger Jr.
SOOMHz relocation: It's about leverage.
News 47
ComSpace readies DCMA for 2000.
Product focus: Batteries. 49
Products 50
Readers' choice: Pyramid Communications.
Media 52
People 53
Classified 54
Ad index 68
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MOBILE RADIO TECHNOLOGY
VOL. 17, NO. 8 , 1999
20 Anchorage International Airport drills for disaster
Donald E. Koehler
In a disaster, people and equipment have to come together in an efficient
recovery and triage process, all linked hy mobile communications.
24 Words do count
Steven G. Mednick and Lt CoL Matthew Tystka
Public safety agencies faced with purchasing a new telecommunications
system need to consider contracts, competitive negotiation and due diligence.
32 Make VHF cavities from over-the-counter hardware
Patrick E. Builer
Fabricating simple cavities may seem like work, but space, cost,
flexibility and ease of timing make the concept an attractive alternative.
42 Computer-aided dispatch comes to the Ozarks
Simon Meman Jr.
Stone County, MO, turns to Windows NT-based CAD to facilitate
consolidation of emergency services response,
48 The future of fire mobile data
D. A. Keckler
MRT interviews HTE president Gary Kaiser, a former firefighter and
county administrator.
58 Red skies and green lights
Jody Steinberg
Two public safety agencies whose communications systems must meet
the challenges posed by heavy tourism and volatile seasonal weather
discover that emergency preparedness can hang by a dead battery,
4 Editorial
Don Bishop
Scanning
8 Calendar
Editorial index
10 Editorial forum
Emily Reid
Hot topics in public safety for August
12 Letters
Investigating interference
16 In the public interest
Robert H. Schwaninger Jr.
Thunderdome: Two men enter, one man leaves'
64 News
Intek, Securicor merger proposal draws lawsuits
67 Product focus: Logging and recording systems
68 Products
Readers' choice: IDA
71 Media
72 People
73 Classified
88 Ad index
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MOBILE RADIO TECHNOLOGY
VOL. 17, NO. 9, SEPTEMBER 1999
22 North by northwest: Maintaining
connectivity along the Alaska RR
Donald E. Koehler
LMR systems are still used in a
variety of ways to improve
efficiency, safety and profitability
of modern railroads. The Alaska
Railroad provides a model of radio
systems applications.
32 Communicating down the line
Ramona lsbell and Larry Gibson
The dispatchers radio system
functions as the heart of the Union
Pacific Railroad, an industrial opera-
tion that spans 23 states and more
than 36,000 miles of track.
40 Taking turns
Phil Anderson
The solution to arbitrating the use
of shared paging frequencies is as
simple as 'tick, tock.' GPS-based
timing allows users equal access.
42 The changing face of paging
M. Major
From a simple alert to two-way
communications, the little beeper
has become the personal assistant.
DEPARTMENTS
4 Editorial
Don Bishop
Scanning...
10 Calendar
Editorial index
12 Editorial forum
Nikki Chandler
Can't we all just get along?
16 Letters: Interference problems not new
18 In the public interest
Robert H. Schwaninger Jr.
Cash, campaigns and what counts
48 Technically speaking
Harold Kinley, C.E.T.
Measuring insertion loss of cavities
52 News
Securicor raises offer for Intek Global buyou'
57 Product focus: Pagers
58 Products
Readers' choice: Kenwood Communications
63 Media
64 People
65 Classified
88 Ad index
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MOBILE RADIO TECHNOLOGY
VOL. 17 , NO. 11, 1999
20 Exploring experienced equipment
Matthew Halverson
For small benchtop operations, a
'pre-driven' piece uf lest equipment
may be financially attractive.
22 A walk in the park
Yuenie Lau
New hand-held analyzers make
field testing easier and more
convenient with their decreased
size and combination of functions.
26 Trapping transients:
Line surge protection
Mex CJorosito
Data communications lines and
equipment are vulnerable to
electrical transients. Assessment of
the application guides proper
surge protection.
34 Do you cut your coax?
Pafnck Buller
A standard approach to installing
coaxial cable for mobiles will
improve RF power measurements
and improve reception quality in
fleet vehicles.
4 Editorial
Don Bishop
Scanning-
8 Calendar
Editorial index
10 Editorial forum
Ramona lsbell
On the threshold
12 Letters: Schools and communications
16 In the public interest
Robert H. Schwaninger Jr.
Mexican standoff
36 Technically Speaking
The versatile SINAD meter
39 News
Ericsson PRS offers new radio products
with digital modulation
43 Product focus: Benchtop equipment
44 Products
Readers' choice: Young Design
48 People
49 Classified
60 Ad index
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