YEARS of EXCELLENCE - Primus Electronics Corporation

primuselectronics.com

YEARS of EXCELLENCE - Primus Electronics Corporation

3 RD QUARTER 2011

YEARS of EXCELLENCE


MESSAGE

FROM THE PRESIDENT

“HERE AT PRIMUS,

PROVIDING THE ULTIMATE

IN CUSTOMER SERVICE,

IS A WAY OF LIFE”

What a distinct pleasure and honor it is to be delivering

this message to you as our company celebrates

this very significant milestone, our 30 th Anniversary

in business.

From the very inception of Primus, we have always

had as our highest priority the very best in

customer service. Here at Primus, providing the ultimate

in customer service is a way of life. Excellence

in customer service and complete satisfaction with

your transaction is what is expected of the employees

of this company and nothing less will be accepted.

We fully understand that in this very competitive

world we live and work in, you have choices as

to where you will place your business. Good, honest

and fair competition is healthy for us all as it makes

us all better. We welcome that true competitive

spirit as we here at Primus continue to meet the demands

of the current business climate. We wish to

be more of a partner to you than a mere supplier as

we continue to address and service the needs of our

customers.

Your call to Primus is of the utmost importance

to us as it is answered by a live person rather

than by an automated machine. Our very knowledgeable, friendly, and

eager-to-please staff conducts every phone call with the level of service

and attention to detail that you deserve.

I am reminded of that memorable Burger King ad campaign of

some time back in which they stated to their customers, “Have it your

way, special orders don’t upset us”. This ad campaign and business philosophy

of Burger King was in response to their competitor, McDonalds,

who at the time, would prefer their customers to accept products “as is”

and made it rather difficult to order with any “special instructions”. Currently

in our industry deadline pressures to complete projects on time are

present more than ever. The increasing need for detailed attention to orders,

timely and complete shipments, and adherence to special instructions

leaves purchasing professionals in our industry with no choice but

to demand specialized service and seek out suppliers who can comply as

such. So with all due respect and proper credit given to the marketing department

at Burger King, I now say to you our most valued customers,

“Have it your way”.

In the upcoming months we will be announcing additional programs

and services to further help us achieve our goal of total customer satisfaction.

We love to hear from you and welcome your input, requests, and

suggestions. Primus is listening to you and will not rest in the area of providing

outstanding value added services.

Thank you for your continued support of Primus. My words cannot

express the level of appreciation and gratitude we have for you.

Thank you,

Mr. Michael Johnson

President, Primus Electronics

2 PrimeConnection | 3 RD QUARTER 2011


INSIDE THIS ISSUE

PRIMUS ELECTRONICS

4180 E Sand Ridge Road

Morris, IL 60450

Phone: (800) 435-1636

Fax: (800) 767-7605

PRESIDENT

Michael Johnson

OUTSIDE SALES MANAGERS

Chris Pleibel - Northeast Region

(610) 745-4491

cpleibel@primuselectronics.com

Rob Menees - Midwest Region

(217) 840-1887

site-specific@comcast.net

Gerry Fritzke - Northwest Region

(360) 921-5945

gerryfritzke@comcast.net

Diane Mueller - Tower Sales Representative

(815) 351-0355

dmueller72@aol.com

Gordon Nelson - Territory Manager NE

(301) 785-7740

gnelson@primuselectronics.com

Doug Melander - Territory Manager Midwest

(765) 721-5580

dougmelander@gmail.com

Brian Herkert - Key Account Manager

630-730-4147

brian@primuselectronics.com

SALES AND MARKETING

Doug Salvatori - Inside Sales Manager

Shannon O’Connor - Marketing Manager

EDITORIAL CONTRIBUTORS

Jerry Rosalius with Midwest Antenna

Systems,Sylvain Lafreniere with CCI, J.L.

Lane with PDQ Towers, Times Microwave

Systems, Andrew Solutions, NewMar,

Innovative Circuit Technology, Premier

Mounting Solutions, Railroad Products,

and Michael Johnson and Shannon

O’Connor with Primus

EDITOR

Shannon O’Connor, Marketing Manager

ON THE COVER

Primus Staff

WANT A FREE PRIMUS T-SHIRT and

CHANCE TO APPEAR ON OUR

COVER?

Show your industry pride with a free

Primus t-shirt saluting the professional

accomplishments in the telecommunications

industry. Call us with your company

name, address, and sizes requested. If

you have additional questions or comments,

call (800) 435-1636.

Journey to the

“Bottom of the World”

4

12

4

7

10

13

17

YEARS of EXCELLENCE

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DEMYSTIFYING

PIM…

IN TODAY’S

WIRELESS

NETWORKS

and

PiM Pro Special

save thousands now!

DEVASTATION IN JOPLIN

and The Joplin Shoe Project

Journey to the Bottom of the World

Read about another International Ham Radio DXpedition, this time to the “Bottom of the

World,” and the very remote South Orkney Islands in the Antarctic Seas.

By Jerry Rosalius, Midwest Antenna Systems

Demystifying PIM... In Today’s Wireless Networks

Passive Intermodulation (PIM) has become the new benchmark in determining the health of

a cell site. Everything you wanted to know about PIM is included in this exclusive white

paper.

By Sylvain Lafreniere, Communication Components Inc. (CCI )

New Product Showcase

Primus is the place to get all of the latest products to hit the market! Read about these new

quality products now available at Primus

Primus’ 30 th Anniversary and Cover Photo Winner

Our customers are not the only ones who like wearing Primus t-shirts: In celebration of our

30th Anniversary, Primus staff members are featured on the cover of this special edition.

Help us celebrate our 30 th Anniversary and win money by simply telling us one thing.

By Shannon O’Connor, Primus

Devastation in Joplin and The Joplin Shoe Project

A technician's account of a tornado's aftermath that challenged him to give back and the

special project he created which is doing just that. Learn how you can help too!

By J.L. Lane, PDQ Towers

7

17

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The Difference in Wireless Distribution

PrimeConnection is published as a corporate communications magazine for customers and friends of Primus

Electronics, Inc. The magazine is published four times a year in January, April, July, and October by Shannon

O’Connor, Marketing Manager, Primus Electronics, at 4180 E Sand Ridge Road in Morris, IL. To change your mailing

address or request additional copies, please call (800) 435-1636 or email shannon@primuselectronics.com.

3


FEATURE STORY

Journey to the

“Bottom of the World”

Primus helps support yet another

International Ham Radio DXpedition.

This time to the “Bottom of the World,”

and the very remote South Orkney

Islands in the Antarctic Seas.

Thirteen ham radio operators from the United States, Canada, Singapore,

and Tajikistan (in Central Asia) traveled by air and met at

the most southern sea port of the world, in Ushuaia,

Argentina. There they loaded a ship with supplies and continued

their 5 week adventure to Signy Island, South Orkney, Antarctica.

By Jerry Rosalius

Midwest Antenna Systems


After a year of preparation, the operators made a long and somewhat

dangerous journey to provide ham radio operators a unique

opportunity to make two-way contacts with one of the rarest countries/entities

on the DXCC World List.

All equipment needed to be shipped from the states, including

high performance HF transceivers, RF power amplifiers, laptop

computers, 14 antennas, thousands of feet of coaxial cables, and

shelters. Generators, fuel, food, and other necessities, were supplied

by our chartered ship, the “Braveheart” based out of New

Zealand.

The “Braveheart” voyaged three weeks to get from New

Zealand to Argentina in order to accommodate the expedition. The

owner of “Braveheart” Nigel Jolly, his two sons, and four other

crewmen provided the expedition with World-Class support.

Once the expedition embarked from Ushuaia, they had a five day voyage

south and east across the renown “Drake Passage,” one of the most dangerous

seas on Earth. The almost 1,000 mile voyage south and east was

rough, but not unbearable. Large icebergs were avoided, thanks to the onboard

radar.

Once Signy Island, South Orkney was reached, the Braveheart anchored

about ¼ mile offshore. A zodiac or motorized rubber boat was used

to move equipment and manpower ashore.

The team split into groups all having important and necessary jobs to

complete, but first and most important was the assembly of two shelters.

Antennas and coaxial cables were installed over a 15 acre area. Six complete

stations were assembled inside a 12' x 25' Antarctic-rated shelter.

Four 6 kw generators ran continuously to supply power for the operation

for 2 weeks, only to be shut down for a couple of oil changes.

JOURNEY Continued on page 7

Too cold to wear just a Primus t-shirt, Jerry Rosalius

with Midwest Antenna Systems begins making two-way

contacts while staying warm in one of the two shelters

they constructed..


The 13 operators split into 2 teams. Each team operated in 8 hour shifts, keeping

5-6 radios on different radio bands and modes going around the clock. Each

operator got 16 hours a day “on the air.” Voice communication was on single

side band (SSB); high speed Morse code (CW) was the most productive mode,

and radio teletype (RTTY) was also used.

After 2 weeks on the air 24 hours a day, the team had made 63,643 contacts

worldwide. All contacts were logged on laptop computers and the logs

were downloaded to our web site every 24 hours. Iridium satellite phones were

used very successfully for downloading the logs fast and efficiently, and to

communicate with family and business associates.

After 2 weeks on the island, everything had to be disassembled and transported

back to the “Braveheart.” The site where the camp had been needed to

appear as if no one had been there, per agreements.

After a safe return voyage across the “Drake Passage” and a celebration

in Ushuaia, all team members returned safely to family and friends.

Primus supported the expedition with Andrew CNT-400 coaxial cable,

connectors, and connector installation tools. Even with the cable laying on sharp

rocks, constant “seal traffic,” and inclement weather, the cable & connectors

performed flawlessly. The expedition highly recommends this cable for any use.

We want to thank Primus again for their support of another successful

DXpedition to a very remote location.

The Locals

The VP8ORK DXpedition was largely supported by the Northern California

DX Foundation. Many other ham radio foundations and clubs worldwide, including

the local Kankakee Area Amateur Radio Society also contributed. DX

Engineering supplied antennas, Elecraft supplied seven world class K3 transceivers,

and ACOM supplied high power HF RF amplifiers.

To read more about the DXpedition, visit www.vp8o.com and click on the photo

album update. Once there, click on the different links to view the radio operation,

the wildlife, and the landscape of the South Orkney DXpedition.

A giant iceberg off the coast of the South Orkney Islands.

Pictures courtesy of Jerry Rosalius with Midwest Antenna Systems.


DEMYSTIFYING PIM…

IN TODAY’S WIRELESS NETWORKS

By Sylvain Lafreniere

Product Line Manager for

CCI’s PIM-Pro Products

Demystifying PIM…in today’s wireless networks

Passive Intermodulation (PIM) has become the new benchmark in determining the health of a

cell site. Today’s mobile handset users expect consistent high throughput from their devices and,

consequently, push current networks to their limit. The upcoming fourth generation (4G) networks

feature an increased mobile data rate of 100 Mb/s and this higher transmission rate will

expose PIM vulnerabilities in today’s networks like never before. Fourth generation FDD networks

require superior network transmission fidelity, higher than previous generations. Network

operators also face the challenge of maintaining customer loyalty in an unforgiving competitive

arena. As such, good network PIM performance is now imperative.

This article attempts to clarify PIM to all who have interest on this subject, but should particularly

be appreciated by field technical personnel as well as anyone responsible for performance

engineering, some of whom may be required to perform PIM measurements as part of their

daily work routines. This article does not focus on PIM sources such as loose connectors, contaminants,

dirt, etc... Although important, such PIM sources can easily be resolved with regular

cell site transmission line maintenance and work quality awareness of installers and site technicians.

What is PIM?

Descriptively, Passive Inter-Modulation is an undesired, non-linear, signal energy generated as a

bi-product of two or more carriers sharing the same down link path in wireless networks. Due to

network hardware configurations, this multi carrier interaction can cause significant interference

in the up-link receive band, which can lead to reduced receiver sensitivity. To the mobile phone

user, this often translates to a loss in audio fidelity in conversations, decreased data speeds, or in

extreme circumstances, dropped calls or an inability to make or receive calls or utilize data services.

Since there is a mathematical correlation between the known carrier frequencies and the resultant

interference signal in the receive band, accurate measurements of PIM signals can be

achieved consistently. For practical PIM testing applications, we will only concern ourselves

with those PIM signals which interfere directly with our network’s receive band. Typically these

PIM signals are:

3rd order PIM, = 2 x F1 – F2

5th order PIM, = 3 X F1 – 2 x F2

Continued SAFETY Continued next page on page 9

7


PIM Continued from page 6

For example: CCI’s PIM-Pro 850 analyzer has a default setup with two transmit frequencies at

869 and 894 MHz, producing a 3rd order IM at 844 MHz and a 5th order IM at 819 MHz. In

this example, the focus would be on the 3rd order IM at 844 MHz since it falls within the receiver

range of 824 to 849 MHz. The 5th order IM at 819 MHz is outside of the receiver range

and, as such, can be ignored for the purposes of PIM testing. It is important to observe that the

actual IM frequency is determined by the two transmit frequencies and the spacing between

them. A 25 MHz frequency spacing between the transmitters also results in a 25 MHz spacing

between the IM signals.

Typically, the 3rd and 5th order PIM signals are the most likely to fall within the receive band

with enough PIM energy to cause disturbances, while 7th and 9th order PIM signals are usually

very low in power. CCI’s PimPro Passive Intermod Analyzer allows you to select which order

PIM you want to measure and highlights the ones that fall in the receive band for simplicity.

It should be noted that PIM signals exist as a result of the combined transmission of multiple

carrier frequencies within a transmission line path. The objective is to ensure that these levels,

by design and in practice, should occur at an amplitude which is below the Base Stations receiver

sensitivity. The amplitude of these undesired signals is directly influenced by the fidelity

of the transmission line path, including all components and junctions that can introduce a nonlinear

effect to the signals passing through them.

PIM: dBc or dBm?

Although PIM measurements can be presented using both (dBc and dBm) engineering units, it

is more meaningful and consistent to keep measurements in dBm. This is particularly true when

trying to compare PIM measurements at different carrier power levels, where measurements in

dBc may be misleading. Using dBc simply means that the value is relative to the transmitter

power. For example, a -100 dBm PIM level generated from two 43 dBm tones (20W) equates to

a PIM of -143 dBc. Figure and table (below) show an example of an operator needing to keep

PIM signals below -106 dBm since the Base Station (BTS) Rx sensitivity is at – 105 dBm.

Figure 1 - BTS Receiver Sensitivity (dBm) Requirement

Table 1 - BTS Receiver Sensitivity Input Power and Measurement Requirements (dBm vs. dBc)

Two (2) tone carrier power Watts (dBm) 2W (33 dBm) 20W (43 dBm) 40W (46 dBm)

Desired PIM performance in dBm -106 dBm -106 dBm -106 dBm

Equivalent in dBc -139 dBc -149 dBc -152 dBc

Difference in dB Reference 10 dB 13 dB

The above table demonstrates that the power of the transmitter dramatically effects the PIM dBc

value, where the desired PIM dBm level is the same for all three. Testing at 40W is shown to be

8 PrimeConnection | 3 RD QUARTER 2011


a more stringent network test with the combination of higher power and the need for a more

sensitive receiver. As can be seen in the table above, a device tested at 40 Watts actually performs

13 dB better than a device tested at 2 Watts even though both devices meet the desired -

106 dBm PIM performance level. More importantly, a device that meets the desired PIM

performance at 2 Watts, may well fail if subjected to higher power levels of 20 Watts or 40

Watts. PIM tests that are performed at Low Power can mask PIM nonlinearities by not bringing

them out. Although performing PIM testing at 40W is considered to be a more stringent test

then what is currently required, it exposes a cell site’s PIM vulnerabilities in a significantly

more quantitative manner leaving little room for conjecture as to the integrity of the device(s)

under test. Meeting the 20 W PIM specification today at 40 W gives operators and contractors

more measurement confidence and allows room for growth. The 20 W standard was intended to

simulate issues for the power of a single carrier or multiple carriers not exceeding an aggregate

power of 20 W on a given transmission path. However this does not guarantee performance if

the number of carriers or total aggregate power increases as is typical with network growth, thus

testing at 40 W accommodates these conditions and can eliminate the need for repeated testing

and PIM mitigation in the future.

PIM nonlinearity discussion

PIM non-linearity increases, in theory, at a ratio of 3:1 (PIM to signal). A 1 dB increase in carrier

power correlates to a theoretical increase of 3 dB in PIM signal power. In practice, the actual

effect is closer to 2.3 dB as the thermal noise constant -174 dBm/ Hz becomes an error

contributor. This thermal noise floor gets closer to -140 dBm as PIMs are measured in a narrow

IF filter which allows the noise level to increase at a theoretical 10 dB/decade. This -140 dBm

floor is considered a PIM analyzer’s residual IM level.

DIN 7/16 Connectors

The popular DIN 7/16 RF connector was designed to achieve good PIM performance and is regarded

as the standard RF connector for engineers who design today’s wireless networks. It has

a large contact area enabling the handling of 20 and 40 watt signal levels with minimal contribution

of non-linear PIM energy. With a PIM specification of better than -122 dBm and a return

loss of higher than 22 dB (up to 3 GHz), the DIN 7/16 connector is a trusted ally to today’s network

designers. The traditionally popular N connector does not perform as well in the presence

of 20W or 40W multi tones primarily because of ferromagnetic effects. Some connector manufacturers

have improved their N connector PIM performance through silver plating techniques,

but the DIN 7/16 connector remains the preferred connector for low PIM requirements.

What causes PIM?

Ferromagnetic materials, when in the current path, exhibit a non-linear voltage to current ratio.

This non-linear effect is accentuated at higher power levels because of increased current density.

Looking at Ohm’s law from the perspective of “Power” helps clarify the fact that the squaring

effect of current results in a higher magnetic flux, which makes metals with high bulk resistivity,

such as, iron, steel and nickel exhibit a magnet like memory effect. This effect is better

known as magnetic hysteresis. Metals that exhibit this asymmetrical magnetic flux are often the

main contributor of PIM energy.

Continued on page 14

9


LMR-SW Seamless, Smooth Wall Aluminum Interconnect Product Line

By Times Microwave Systems

The newest LMR interconnect offering, LMR-SW, includes

low loss, seamless 50-ohm cable, field installable Type N and

7-16 DIN connectors along with the tools

to install the connectors and all required

installation accessories.

LMR-SW cable consists of a copper

clad aluminum center conductor, closed

cell polyethylene foam dielectric, a seamless aluminum outer

conductor and a black polyethylene jacket. The seamless outer

conductor eliminates pin-holes and weld failure.

Connector attachment is quick and reliable using the hand

or drill mounted prep tools. PIM better than -170 dBc is

achieved reliably

and con-

Available Sizes

Size OD Attenuation dB/100 ft

2.06 @ 450 MHz sistently with

LMR-SW396 0.450" 3.00 @ 900 MHz waterproofing

4.41 @ 1800 MHz to IP-67 and

1.46 @ 450 MHz unmatched

LMR-SW540 0.610" 2.11 @ 900 MHz connector

3.06 @ 1800 MHz

retention.

LMR-SW outperforms corrugated copper cables at a substantial

cost savings. Low loss, light weight, environmental

durability and ease of connector attachment make it an excellent

choice for antenna feeder and system interconnects in cellular,

public safety, military and a wide range of other

applications. All LMR-SW cables come with a 10-year warranty.

The LMR-SW product line is now available at Primus.

To order, call (800) 435-1636.

Part #

LMR-SW396

EZ-SW396-NMC

EZ-SW396-NFC

EZ-SW396-716MC

EZ-SW396-716FC

LMR-SW540

EZ-SW540-NMC

EZ-SW540-NFC

EZ-SW540-716MC

EZ-SW540-716FC

Description

Standard low PIM cable, Black PE jacket

N-male connector for LMR-SW396

N-female connector for LMR-SW396

716 DIN male connector for LMR-SW396

716 DIN female connector for LMR-SW396

Standard low PIM cable, Black PE jacket

N-male connector for LMR-SW540

N-female connector for LMR-SW540

716 DIN male connector for LMR-SW540

716 DIN female connector for LMR-SW540

NEW

Mobile Computer UPS Prevents Against System Crashes

By NewMar

Mobile Computer users in service and utility vehicles can suffer system crashes, lengthy

reboot sequences, and data and hard drive corruption due to low voltage and loss of power

resulting from poor vehicle battery condition.

Newmar’s Mobile Data Power, model MDP-25, prevents these problems. It contains

a 9-AH battery that switches on-line when primary vehicle voltage drops below a critical

point, assuring continued operation of powered device(s) by supplying up to 25A of stable

12 volt power.

An internal 3-step, temperature compensated charger maintains the MDP reserve

battery at full charge, ready to go on-line when a fault or degradation of primary vehicle

battery occurs.

The MDP features a rugged case with access door for easy removal and replacement

of the internal battery.

To prevent your vehicle’s system from crashing, call Primus today to order New-

Mar’s Mobile Data Power by calling us at (800) 435-1636.

10

PrimeConnection | 3 RD QUARTER 2011


NEW QUIK-VEE SECTOR FRAMES

Time-Saving Solution

By Andrew Solutions

Primus is excited to offer customers Andrew Solution’s

new Quik-Vee Sector Frames which are a time-saving

solution for mounting multiple BSA antennas to a round

or angled tower member.

These frames are pre-assembled so installation is

as easy as unfolding the frames, tightening some bolts,

attaching the saddle and pipe mounts, and mounting

them to a tower.

Start saving time on the job today! Primus has a

full inventory of these Quik-Vee Sector Frames (QV-

SF12-B) available for same day shipping along with

Andrew’s entire line of quality products for all of your

projects.

To learn more or order your Quik-Vee Sector

Frame, call Primus at (800) 435-1636.

PRODUCTS

ISOLATED SERIES 2

Isolated DC-DC Converters

By Innovative Circuit Technology Ltd. (ICT)

ICT’s all new ISOLATED SERIES 2

from ICT builds on the ICT legacy of reliability

and performance, while adding

a 3-year warranty, higher power models,

an on/off control contact, and new pricing

that provides an unmatched level of

price/performance in the industry.

Benefits offered by the ISOLATED

SERIES 2 include quiet operation, efficient

switch mode design with low electrical

emissions, built-in filtering and

protection for extra durability, and a new

control contact that allows the converter

to be turned off when not in use, saving

energy and extending battery life.

All models come standard with an

extra contact terminal that can be used

to connect the converter to an ignition or

control circuit, saving energy and conserving

battery life when not in use.

Three new high power models

have been added, providing up to 420

watts of continuous power for customers

who require more power for their application.

The ISOLATED SERIES 2 offers

the highest efficiency in the industry,

meaning more energy is delivered to the

load that is not lost during the power

conversion process.

For more information about ICT’s

Isolated DC-DC Converters or entire

line of quality products, call Primus at

(800) 435-1636.

11


g{tÇ~ lÉâ

FOR ALLOWING US THE PRIVILEGE

TO SERVE THE INDUSTRY FOR 30 YEARS!


YEARS of EXCELLENCE

[xÄÑ há VxÄxuÜtàx4

On August 1, 1981, Primus was born with the goal to

become The Difference in Wireless Distribution. As we

celebrate our 30 th year, we know one thing: We have

exceeded that goal having had the privilege to serve

our outstanding customers and exciting industry over

the past 30 years.

And over the past 30 years, we have heard many reasons

why you think we are The Difference. Everything

from, “Primus Rocks ‘cause you’re always there for me”

to, “You guys are different because you actually answer

the phone when I call!”

Now is your time to tell us! Fill out the postagepaid

card telling us why YOU think Primus is the

Difference in Distribution and mail it back to us

by August 1.

The person with the best reason will win a $100

American Express Gift Card. Ten more runner-ups

will each receive a $25 gift card.

Be sure to include your contact information and reason(s)

why Primus is the Difference in Wireless Distribution.

Responses will be shared in the next newsletter

omitting personal and company name to uphold

confidentiality.

gxÄÄ há j{ç4

The Difference in Wireless Distribution


PIM Continued from page 9

Poor metal to metal contact junctions can create additional nonlinearities resulting in PIM. Such

nonlinearities can come from under-torqued male to female DIN 7/16 mates, as well as irregular

contact surfaces such as poorly manufactured connectors and surface metal oxidation. Oxidation

(corrosion) creates tiny air gaps, which promote voltage potential barriers, which in turn result

in a nonlinear voltage to current ratio, sometimes referred to as the diode effect.

40 Watt Vs 20 Watt test power levels

In order to better represent real traffic network conditions, PIM measurements should be performed

at the BTS radio power level or slightly higher. In the last several years, a handful of 2

Watt PIM analyzers have entered the market place touting their benefits as being, smaller, more

portable, and conveniently battery operated. Although these features are obvious, these units

offer limited value since 2 Watt PIM testing is not representative of typical BTS power levels of

20 Watts or higher, where PIMs are likely to be generated. PIM testing when measured in dBc is

a measurement of relative non-linearity. For network operators, it means establishing a confidence

factor in their network while under the real traffic stress. Networks engineers want a confidence

buffer in their power range where PIM begins to show nonlinearities. Although most of

today’s BTS units output 20 Watts, the new RRU technology (roof top or tower top radios) is

now at 30 or 40 Watts and in some cases even higher power levels. Network operators need to

question whether testing at 20 watts (43 dBm) is satisfactory, as it may not expose marginal network

PIM conditions. This is the main reason why CCI engineers designed the PIM-Pro PIM

analyzer family with 40 Watts of output power.

Figure 2 - PIM Performance of a Load at Varying Power Levels (dBc and dBm)

Above graph displays actual PIM measurement results of a load. Note the slope of the red (PIM

dBm) and green (PIM dBc) compared the 2 tone signal power. Also note that there is hardly any

measurable nonlinearity in the 2-10 W power range, due to lack of PIM generating power.

TMA measurement considerations

In situations where a TMA is in the PIM measurement path, a technician should be cognizant of

the gain of the LNA as it will amplify all signals in the receive path, including PIM energy. The

gain value of the LNA (typically 12 dB) should be taken into account if the desire is to mathematically

remove the amplifier’s gain contribution to the measured PIM value. However, since

the receiver’s up-link band is directly in line with the LNA in regular traffic, then the measurement

should be taken at face value without gain compensation. Additionally, the LNA’s Noise

Figure (1.6 dB) should be added to the measurement error budget. The affect being that a typical

+/- 3.0 dB PIM measurement error is now closer to +/- 5 dB.

14 PrimeConnection | 3 RD QUARTER 2011


PRIMUS

T-SHIRTS

Tower Works, Inc is a full service communications tower company in Maple

Park, IL with total dedication to completing your next project on time and on

budget. Primus thanks Tower Works for taking these pictures while on the job

and wearing Primus. Above photos courtesy of Tower Works, Inc. www.towerworks.com.

Sean Cooper, Director of Tower Operations with Shenandoah Tower Service

in Staunton, VA proudly wore his Primus t-shirt while competing in local run,

where he placed second in his age group. Primus wishes to thank Sean for his

patronage to Primus and congratulate him on his victory!

GET

YOURS

TODAY

To receive your new t-shirt, call

Primus at (800) 435-1636 or visit

www.primuselectronics.com.

Must be a customer to receive a t-shirt.

Quantities are limited per customer account.


Measurement recommendations

Due to their low power levels, less than -80 dBm, PIM measurements are difficult to make with

good accuracy in the best of lab conditions, let alone the harsh conditions of cell sites. A valid

and repeatable PIM measurement requires an analyzer with stable linear amplifiers, exceptionally

low PIM duplexer and related components and a well-designed receiver with very low receiver

noise floor. The CCI PIM-Pro with a residual IM level of


DEVASTATION IN JOPLIN:

Tornado Challenges Tower Technician to Give Back

By J.L. Lane - Communications Tower Technician, PDQ Towers

Tower tech J.L. Lane

was one of many

workers who helped

restore communications

to Joplin, MO

after the tornado.

He provides a moving

description of the days

he spent there and

how a little girl's shoe

is making a difference

in his life.

On May 22, 2011, I was getting dinner ready and

nestling down to watch world news and then 60

minutes, my Sunday evening ritual.

In the middle of preparing the plates I heard

that Joplin had been hit by a big tornado. No one

really knew at the time just how big but the first

reports were looking grim.

I had a strong feeling I needed to start packing

a bag. I am a tower technician and crew leader

with PDQ Tower Services and the main bulk of

my employment is in the cellular market, a major

part of my work in the southern part of Missouri.

The City of Joplin is an area where many of

our long time customers are and I had no doubts

where I would be headed Monday morning.

I had previously seen small towns and fields

where tornados had touched down and had seen a

few pictures of what the Alabama tornados had

done to some towers, but nothing in my life, - no

movie, no news footage and no pictures - could

prepare me for the mass devastation and sadness I

was about to witness.

The expected Monday morning call came

and they needed whatever crews were available.

Jeremy, a technician in the area, said they had no

service whatsoever in the impact zone. We were at

Continued next page

17


JOPLIN Continued from page 17

Def-Con 4 status.

We high-tailed it to the warehouse, got

as much of everything we would need,

stopped at Walmart for food and water and

set off into the unknown.

Some of my younger guys on the crew

were anxious to get down there and see just

what they had been watching on the news.

Youthful curiosity, I guess. I on the other

hand had an uneasy feeling about it. Something

inside was telling me I was headed

into a sea of sadness, I was right.

Upon arrival, I met a technician in

Carthrage, handed off some radio cards and

was told to go on stand-by.

We checked into to our rooms and decided

to go on a recon of some sites that

were hit.

As we rolled into town another

massive storm was descending upon

Joplin. No tornado this time around,

just torrential rains to add to an already

very chaotic situation.

On the outer edges of town we

saw signs and debris scattered about,

some but not all trees were damaged.

I knew Joplin well as my

mother's family was from Lamar

which is 30 miles north. As a lad I

would spend summers with my aunt

Paula and on Fridays she would take

me to Joplin for a dinner and a movie.

I also had done a considerable

amount of work here so I was no

stranger to the town.

The closer we got to the center

of town the more the ugly face of

what this tornado had done to the

heart of Joplin began to reveal it self.

The truck cab went silent as we

all tried to take in what we were seeing;

comprehension and reasoning

were out the window and the overwhelming

feeling of heartache and

sadness set in on us all.

There are no words that can accurately

describe with justice what I

had seen that first day and the three

that followed.

The closet thing I had ever seen

to this destruction were pictures of

Hiroshima when the atomic bomb

was dropped.

It seemed to go on as far as the

eye could see. People standing around

on mounds that they used to call

home, others walking around aimlessly

looking for some kind of familiarity

to gain some bearings on where

they were.

No animals were seen running

around, no birds were flying, just debris

and confusion being covered by

endless rain.

18

PrimeConnection | 3 RD QUARTER 2011


Looking out at the scattered remains it

all seemed like just mounds of wood, glass,

drywall and steel with some clothing

thrown in the mix.

When I looked closer I began to see

children’s toys, people’s pictures, a wedding

dress or what was left of it in the splintered

toothpick protruding from the ground that

used to resemble a tree.

I am by nature a thick skinned, stern

person. I have to be, I work in heavy construction

and I am also a crew leader in

what many call one of the most dangerous

occupations in the world, but at that moment

it took every bit of strength I had not

to break down like a 41 year old baby.

After leaving the site of the cross and

Mother Mary that were left standing we

made our way back to get some rest. As we

were leaving I saw an a couple in their mid

70’s standing on top of their home/mound

of rubble.

Neither had a raincoat nor did they

look like they cared that they didn’t. Both

were bent at the waist and knees, him with

his left hand, her with her right hand both

extended sifting through the debris looking

for any remnants that they had accumulated

through a long life together.

Their other

hands were

locked together

for stability on

unstable ground;

the tornado took

everything from

them but their

love for one another.

I started to

take a picture

but then I drew

my camera back,

I just couldn’t do

it; it didn’t feel

right.

The next day after making some adjustments

at a tower just outside the impact

zone we were asked to set up a mobile

tower behind the Walmart that got hit on

East 20th.

Upon arrival it was still chaotic. What

to do, how to do it, and where do we start?

Once everything arrived we had the

site up and on air in four hours.

When I arrived back at my room another

worker from a different

trade asked me had we

put up a site near the hardest

hit area of Rangeline Road?

After informing him that we

did he told us his signal was

very much hit and miss until

around 5:00 p.m. and then it

went to full signal.

It felt good to know that

we were making some kind

of contribution. At the site a

200-foot self support tower

had collapsed into the apartment

complexes located to

the north directly behind

Pepsi and Walmart.

In my downtime I had to talked to

some of the residents who had said no one

lost their lives in the complex. I was asked

to go on stand-by Wednesday while everybody

figured out what sites were damaged

and what we needed to do.

Meanwhile I was scheduled to put up

another mobile tower off of Shifferdecker

Continued next page

19


JOPLIN Continued from page 19

Rd. that night; units were on there way from

Dallas. It was going to be a very long day.

That stand-by time setting between the Walmart

& Home Depot, was tough on me.

People were looking for any remains of

their home to the right of me while search

and rescue were to the left looking for bodies

in Home Depot and Walmart, recovering

three the day I was there.

If called upon I will be there but I hope

I never have to have a day like that day again

as long as I live.

That night we all converged upon a

field to set up the mobile tower unit and with

the teamwork of all involved it went flawlessly.

We finished that day and went into the

next on less than two hours of sleep.

Out in that field that evening one of my

crew members stumbled upon a little girl's

dress shoe, the kind that she would wear to

church on Easter Sunday.

This shoe had no business in the middle

of a field and we all could only hope and

pray that the princess that this shoe belonged

to was safe in the warmth of her parents'

embrace.

\à uxz|Çá ã|à{ t wÜxtÅ?

|à |á |zÇ|àxw uç wxá|Üx?

tÇw |à tÄÄ uxvÉÅxá ÜxtÄ

à{ÜÉâz{ á{xxÜ wxàxÜÅ|Çtà|ÉÇ

àÉ Åt~x áÉÅxà{|Çz uxààxÜ

à{tÇ à{x vÉÇw|à|ÉÇá

à{tà ãx xå|áà |ÇA

~ J.L. Lane

A

nice pair of shoes has

always lifted spirits from

young to old & women to men.

That is why J.L. Lane created The Joplin

Shoe Project: Soles for Souls which is a

hands-on project designed to get the donations

straight to those effected by the tornado

that ripped through the middle of Joplin on May

22, 2011.

These good folks lost almost everything when

this devastation swept down upon them which was

followed with a day and a half of torrential rain, ruining

what little belongings were left behind.

Lane is asking for good quality work boots,

shoes, safety glasses, and glove donations so the

locals can safely clean their property for weeks

to come. Good quality shoes are needed in all

sizes including adult and children sizes. He

cannot stress enough the good quality

part (please no torn shoes or gloves).

A comfortable pair of shoes to

clean up the devastation is a luxury

item to those who lost everything.

These donations will give them hope

when it seems all hope has been

shattered.

Working in the communications

field, Lane is taking a handson

approach to giving back to a

community who desperately

needs it: If interested in donating,

please send donations within the

next few weeks as these folks desperately

need them; donations will

continue being accepted as they

are received. All items will be delivered

by the core group involved &

all deliveries will be recorded &

streamed via YouTube-Joplin

Shoe Project: Soles for Souls, for

all to see.

JOPLIN SHOE

PROJECT:

Soles for Souls

By J.L. Lane

JOIN US IN HELPING THOSE IN NEED

Relief for Joplin Tonado Victims

JOIN PRIMUS IN

HELPING THIS WORTHY

FUNDRAISER FOR THOSE IN NEED:

If you would like to donate, below is a

list of items needed, in all sizes and in

good quality:

• Work boots, safety glasses & work

gloves; please no winter gloves

• Shoes-preferably comfortable tennis/

gym shoes

• Children’s shoes of all types & sizes

No monetary donations can be accepted. Gift

cards for shoe retailers can be sent; receipts

will be retained or returned at donors request.

Online purchases at WalMart will also be accepted.

Please see drop-off and ship-to locations

below right.

At this time this is a grass roots

movement but with all of our help we

can make it happen. Thank you for

any support you may offer and rest

assured: it is and will be greatly

appreciated!

For any questions or additional

information, please contact

J.L. Lane at:

>>>

lanetowers@hotmail.com

20 PrimeConnection | 3 RD QUARTER 2011


2011 DODGE CHARGER AND CHEVY CAPRICE

MOUNTING SOLUTIONS

By Premier Mounting Solutions

Premier Mounting Solutions is dedicated to meeting your console equipment needs.

As a leader in innovation and delivery of mounting solutions built to last, Premier

Mounting Solutions is currently developing and engineering 2011 Dodge Charger

and 2011 Chevy Caprice consoles and vehicle bases.

Premier Mounting Solutions recently released new products designed to assist

customers in meeting all of their mounting solutions needs, including:

• Large and small push bumpers featuring heavy welded steel construction, durable

powdercoat finish and hard rubber protective strips

• Large and small partitions constructed of 1.5" diameter steel tube and 14 gauge

steel panels

• Pole mount radio boxes

• Pole braces

• Universal laptop cradles

“Our goal is to stay ahead of the curve with the products and solutions we are

developing,” stated Todd Hancock, Premier Mounting Solutions.

“By continually keeping a pulse on the industry, we are able to design, engineer and

distribute the mounting solutions customers need, when they need them.”

Premier Mounting Solutions products are made in the United States and are

designed and manufactured to meet the demands and expectations of customers. To

order any of these products, or request a catalog, contact Primus at (800) 435-1636.

NEW PRODUCT LINE-UP

Large and Small

Partitions

Pole Braces

Pole Mount

Radio Boxes

Push Pumbers

Universal

Laptop

Cradles

JOPLIN SHOE PROJECT:

Soles for Souls

Drop-off and Ship-to Locations:

PDQ Tower Services

701 Squire Ct.

Grain Valley, MO. 64029

Pizzidieos/Pizza & a Movie

110 Buckner Tarsney

Grain Valley, MO 64029

I am back home now but I am finding it hard

to put behind what I have seen. It was not all negative

by far. All the different companies that are otherwise

competitors were working together for a

common goal. The locals that weren’t affected

came out to help those that were.

The different emergency agencies and law enforcement

that are dealing with this disaster that

has never been seen on this scale in this area are

truly dedicated.

I know that after my experiences in Joplin I

will always have a piece of Joplin in me and a

piece of me will always remain in Joplin.

I look forward to helping the town rebuild and

move past this tragedy.

I have created a project called The Joplin Shoe Project: Soles for Souls, quality work boots

and gloves for all, quality children’s and elderly shoes. The little girl's shoe in the field was the inspiration

and I can’t just sit back while people in my own backyard are suffering.

I have to do something more.

This article was originally shared with WirelessEstimator.com and has been reprinted with

permission from WirelessEstimator.com and J.L. Lane with PDQ Towers.

21


jxÄvÉÅx

Primus is happy to announce the hiring of

Doug Melander as Outside Sales Territory

Manager, reporting to Rob Menees, Midwest

Regional Sales Manager, Primus Electronics,

Inc.

Doug will assume a sales and customer

support role, primarily focusing on the wireless

infrastructure market throughout the Midwest region.

Doug began his career as a Crew Leader with a wireless

service contractor where his leadership and expertise helped

him become the Tower Manager. Doug is also a ComTrain

Trainer and holds many other industry-related certifications.

Doug can be reached at (765) 721-5580 and dougmelanander@gmail.com.

Beth Kuruda

Inside Sales

Steven Larson

Marketing

Danielle Saltzman

Administration

VÉÇzÜtàâÄtà|ÉÇá

Primus is excited to announce Brian Herkert

as Key Account Manager, reporting to Rob

Menees, Midwest Regional Sales Manager,

Primus Electronics, Inc.

Brian will assume a sales and customer

support role, primarily focusing on the Utilities

and Land Mobile Radio Markets throughout

the Midwest region. Previously, Brian was a member of our

Inside Sales Team where he gained product knowledge and

the desire to expand into a management role.

Brian can be reached at (630) 730-4147 and

brian@primuselectronics.com.

I want to Thank you and your Team for

the level of service you have provided to

me and my Team in helping us launch our

project. Your help has been tremendous in

achieving our Goals.

Your Team has been extremely flexible and

attentive to our needs in:

-locating hard to find products

-in manufacture products to help address

installation concerns

-speed of delivery (either by bulk or site

specific need)

-ease of ordering, setting-up site type

BOMs

-plus …Training & Product Demos

Please let your Team know that we would

like to say “THANK YOU !!!”

Customer, PA

Want to be on the cover of our newsletter?

Take pictures of you and your crew in your free

Primus t-shirts and send them to:

shannon@primuselectronics.com. Each person in

the picture will receive a $25 American Express gift

card. Need t-shirts? Call us today at (800) 435-1636.

22

PrimeConnection | 3 RD QUARTER 2011


RR-372

Conductor Handset

Extension Box

By Railroad Products

Features

- Standard AAR Handset/Microphone connector

- 1/4" phono jack for head set

- Headset volume is set by volume control on unit

- Integral flush mounting bracket

- 20' connection cable included

- Connects to the locomotive radio via standard

AAR connections

Railroad Products are available exclusively from Primus.

For more information or to order, please contact Pat Morgan

at (800) 435-1636 or Gerry Fritzke at (360) 921-5945

Includes cable


24

4180 E Sand Ridge Rd.

Morris, IL 60450

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