QRP Community: Starting at the Beginning Again
(Part 1 of 2).
By Anthony A. Luscre, K8ZT
Contributing Editor
May 14, 2006
As a service to new readers of both the ARRL Web site and "QRP
Community," we "begin at the beginning" with an introduction to QRP.
Defining QRP
Quoting from my first ARRL Web
column, "More than likely, you've heard of QRP--running low power, 5 W or
less--to make contacts. You may have worked someone who was QRP or even thought
about trying it yourself. To find out more about QRP, there's no better way
than to take a tour of the 'QRP community.' The QRP community is a neighborhood
loaded with great resources for everyone--from beginners to old-timers. As your
tour guide, I'll be pointing out the highlights--and I'll apologize up front
because there's so much to see, we just can't cover it all--at least not in a
single column."
What is QRP Operation?
QRP is technically one of the many Q signals simply
meaning "reduce your power" or (with a question mark added) "Can you reduce
your power?" The term has taken on a much larger meaning.
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QRP is generally defined as low-power operation.
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Usually assumed to be 5 W output power or less.
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Some operators use 10 W PEP on SSB, but most award/contest
sponsors do not recognize this as "true QRP."
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"Milliwatting" is a subset of QRP operation in which operators
run at output powers of 1 W or less.
Counterproductive?
 Wilderness
Radio's SST (Simple Superhet Transceiver) QRP CW transceiver is a good
example of a QRP Minimalist's delight. With its small size, only two knobs and
a spartan exterior, this rig can easily and safely slip into a pocket or
backpack. |
 The Rock-Mite,
from Small Wonders Labs is an example
of simple, inexpensive kit that rewards the builder with a lightweight QRP CW
transceiver. Its small size fits into a custom case you can buy at your local
convenience store-- an empty Altoids tin. |
 Here are four examples of multiband, multimode QRP
transceivers. For more information on these full-featured QRP rigs you can read
one of my previous
columns. |
In our more-is-always-better society, it seems
counterproductive to use less output power than your license allows you. Well,
first you might want to reread the FCC rules for Amateur Radio operations. Part
97 requires amateur stations to use "the minimum power necessary to carry
out the desired communications." Although good operating practice, this is
not the motivation for most QRPers. Most QRPers have other incentives
for low-power operation including the challenge, less chance of RFI, lower-cost
equipment, easier to homebrew QRP radios and many others.
Four
Different Flavors of QRPers
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Minimalists: Using only the minimum to get the job done.
Characterized by low power, simple radios (often single band and/or home
brewed) and simple antennas (usually wire) antennas only.
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Builders: Building is the main pleasure, operating is
often only a secondary objective. Many builders work with QRP projects for
simpler, easier and safer building fun (no high voltage or currents needed).
There is a very active group of home brewers in the QRP community. Also there a
large number of QRP oriented kits being produced both by commercial companies
and members of nonprofit QRP clubs. Many QRPers strive to build gear that is
very compact. A number of homebrew and kit projects have been designed to fit
in small metal tins, such as the ones in which Altoid Mints are sold.
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Portable Operators: QRP is a natural for those interested
in portable operation. With their smaller size and less weight, QRP rigs make
portable operation much easier. Because most QRP rigs need a lot less power
than QRO rigs, smaller and lighter batteries can provide enough power for hours
of on-the-air fun. Antennas favored by portable operators include simple wire
antennas, self-supporting verticals and whip antennas. A special type of
portable operations popular with QRPers is called "pedestrian mobile."
Pedestrian mobile is similar to normal mobile operation but without a vehicle.
Operating while walking, hiking or climbing definitely puts a premium on the
low weight of QRP rigs and their battery power. Radios are often carried in a
modern nylon backpack or hip pack, but some operators prefer military
backboards to mount their radio and whip antenna. One antenna that found favor
with many portable operators, was designed by Budd Drummond, W3FF. Bud's
antenna was dubbed the Buddipole. The Buddipole was first designed as a
homebrew project, but its clever design and good performance soon made it a
viable commercial endeavor for Budd. Although not solely QRP, the Hfpack mailing list and Web site
is a great source of information on portable operations utilizing radio in
packs whether the operator is pedestrian mobile, bicycle mobile or stationary
portable.
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Low Power, But Optimize the Rest: The fourth group of QRP
operators keep the power low, but try to optimize many of the other elements of
operation. Their main reason for QRP operation is usually the challenge of
making contacts with low power. These operators try to set up the best possible
antenna systems for their station, including towers with beam and other gain
antennas. They prefer full featured, multiband, multimode rigs with all the
bells and whistles that many QRO operators desire. They also tend to add a
number of modern shack accessories, including computers for rig control and
logging, full-feature antenna tuners, etc. Many of these operators are also
interested in DXing and/or contesting. Many other members of this group cut
their teeth on QRO DXing and/or contesting. Many of these "Big Guns" have "done
it all" and are looking for a way to put the fun and challenge back into their ham
radio activity.
Just as in most cases where we try to impose arbitrary
categories on people, many QRPers share traits from more than one of the above
categories.
Next Time
Coming up in the second part of this column, I will
discuss what got me started in QRP, QRP organizations and clubs, operating
awards and QRP resources in print and on the Web.
Reader Feedback and Author's Comments
As I write this, I am preparing for the 11th Four Days in May®
(FDIM) sponsored by QRP-Amateur Radio Club
International (QRP-ARCI) and the Dayton
Hamvention®. Week. If you are going, I hope to meet you there. If you are
not sure, go! You will not be disappointed. It's lots of fun and a chance to
meet hundreds of fellow QRPers and hear a stellar lineup of speakers and, oh,
by the way, the biggest world's biggest hamfest is just down the road.
Editor's
note:
Anthony Luscre, K8ZT, an ARRL Life Member, lives in Stow, Ohio. He has worked
in the field of medical microbiology for 18 years and is now a Technology and
Computer Coordinator for a local school district. Luscre is an avid QRP
operator having earned DXCC (current count is at 293), WAS and WAC using no
more that 5 W output. Readers are invited to contact the author via e-mail or visit his Web site.
Page last modified: 03:42 PM, 12 May 2006 ET
Page author: awextra@arrl.org
Copyright © 2006, American Radio Relay League, Inc. All Rights Reserved.