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QRP Show & Tell. A Report on QRP kits and QRP Projects Low-Power Ham Radio – Less than 5 watts. Jim Larsen, AL7FS 907-345-3190 [email protected] Alaska Ver 1.0 5/6/05 By Jim Larsen, AL7FS (add’l credit: N2APB “Why QRP?”) . Overview of QRP Stuff. What is QRP and Why Use it?

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Qrp show tell

QRP Show & Tell

A Report on QRP kits and QRP Projects

Low-Power Ham Radio – Less than 5 watts

Jim Larsen, AL7FS

907-345-3190

[email protected]

Alaska Ver 1.0 5/6/05

By Jim Larsen, AL7FS

(add’l credit: N2APB “Why QRP?”)


Overview of qrp stuff

Overview of QRP Stuff

  • What is QRP and Why Use it?

  • Overview of QRP Kits – a sampler

    • Small projects

    • Intermediate kits

    • Advanced kits

  • Manhattan Construction

  • Commercial Radios on QRP

  • More Fun Stuff

  • QRP Magazines and Clubs

  • How to read more on QRP


What is qrp

What is “QRP?”

  • A telegraphy Q-signal

    • “QRP” = To lower ones power

    • “QRP?” = Can you lower your power?

  • Five watts RF output power (or less!)

    • Use a “QRP” rig, or

    • Turn down your present radio

Only 5 watts?You must bekidding...


Pretty amazing stuff

Pretty Amazing Stuff

AL7FS – Jim Larsen – Anchorage

Worked All States - 67.548 watts total

& In Year 2000 – 1.5M Miles per Watt


Why qrp many reasons but let s focus today on

Why QRP?Many Reasons but let’s focus today on:

  • Quality and simplicity of equipment

  • Joys of homebrewing & kit-building

???


Qrp optimization

QRP Optimization

  • 1) Size & weight increase with maximum output power

  • 2) Minimize current draw

    • No lamps (except LEDs)

    • No digital display unless LCD

    • Maximize TX efficiency

  • 3) Use few components & pack the board tightly

  • 4) Use ICs if possible

  • 5) Sensitive RX - If you can’t hear ‘em, you can’t work ‘em


Size and weight vs max power

Size and Weight vs. Max. Power

  • ConventionalIcom 735, etc.12 lbs.

  • 100w Tuner6 lbs.

  • setupAstron RS-2025 lbs.

  • TOTAL43 lbs.

  • TRANSPORTTrunk of Car

  • QRP setupQRP rig2 lbs.

  • 5wTuner2 lbs.

  • setupPower supply/battery3 lbs.

  • TOTAL7 lbs.

  • TRANSPORTSmall Briefcase


Power requirements for a day

Power Requirements for a Day

  • To run for 24 hours - 10% xmit, 90% receive:

  • Conventional, compact HF rig (IC-706, Yaesu FT-890)

  • Receive - 2 amps…Xmit - 4 to 20 amps (avg. 10 amps)

  • TOTAL CONSUMPTION - 67.2 A-H (a car battery)

  • QRP- optimized rig

  • Receive - 100 milliamps…Xmit - 500 milliamps

  • TOTAL CONSUMPTION - 3.36 A-H (a 3-lb. gel cell)


Kitbuilding homebrewing

Kitbuilding & Homebrewing

  • QRPers are natural builders and experimenters

  • Thousands of schematics are available

  • Hundreds of kits and projects are

  • available today


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Showing off homebrewing projects

  • George N2APB • Jim AL7FS • Brian KF2HC

  • Antenna Analyzer - DDS VFO - MicroBeacon


Overview of qrp stuff1

Overview of QRP Stuff

  • What is QRP and Why Use it?

  • Overview of QRP Kits – a sampler

    • Small projects

    • Intermediate kits

    • Advanced kits

  • Manhattan Construction

  • Commercial Radios on QRP

  • More Fun Stuff

  • QRP Magazines and Clubs

  • How to read more on QRP


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The “Tuna Tin 2”

AL7FS to W1AW – 20 meters

  • Simple Transmitter, less than 1W

  • W1FB original design


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“Herring Aid” Receiver

  • Simple Receiver project

  • Mate to Tuna Tin 2 transmitter


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The “Pixie”

Bruce Hopkins - KL7H built his for 3.920 and 3.933. Checkins were successful with net control on both Motley and Snipers Nets

  • Simple 250mW transceiver kit from HSC Electronics


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The NorCal “38 Special”

  • 30m superhet CW kit from NorCal Club

  • 2W output, wide VXO

  • Very popular as instructional kit

  • Kit no longer available but full doc online


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N2APB’s “38 Special”

  • Custom cabinetry in LMB enclosure


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The N0SS HF Noise Source

  • Noise Source Kit

  • Easy to build w/o kit

  • Spectrogram software

  • Easy readout – filters

  • This is 150 Hz BW on K2


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A Simple and Inexpensive Morse Frequency Display

  • Small Wonder Labs’ “Freq Mite”

  • PIC microcontroller as digital frequency meter


Overview of qrp stuff2

Overview of QRP Stuff

  • What is QRP and Why Use it?

  • Overview of QRP Kits – a sampler

    • Small projects

    • Intermediate kits

    • Advanced kits

  • Manhattan Construction

  • Commercial Radios on QRP

  • More Fun Stuff

  • QRP Magazines and Clubs

  • How to read more on QRP


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Small Wonder Labs’ “SW40+”

  • Built by AL7FS

  • 40m 2W CW transceiver

  • Improved, simplified

  • RIT add-on now avail.

  • Educational Project

AL7FS

Elmer 101http://www.qsl.net/kf4trd/faq.html


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The NorCal 40A

  • 40m 2W CW transceiver

  • Grandfather deluxe


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The NorCal 20

  • 20m superhet CW

  • Great front end

  • Norcal kit for

  • 3rd world countries

  • Red Hot Radio


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The “Sierra”

by Wilderness Radio

  • All band CW transceiver

  • Superhet, VFO

  • Dig display & key options

  • Removable band modules

  • Rivals quality of rigs 5x $

  • ARRL Hndbk cover ‘96


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Small Wonder Labs’

“White Mountain 20m SSB”

  • 20m 2W QRP SSB transceiver

  • Solid design

  • Easy construction

  • No longer available


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OHR – Oak Hills Research

  • Single band superhet CW rig

  • + improved


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OHR – Oak Hills Research

  • 5 band superhet CW rig

  • 5 band + improved


Some commercial qrp kits

Some Commercial QRP Kits

  • Ten-Tec Model 13xx (single band)

  • Oak Hills Research 100A (single-band)

  • MFJ 90xx (CW), 94xx (SSB) (single-band, not kits!)

  • S&S Engineering TAC I, ARK-series (single-band)

  • NN1G Small Wonder Labs SW40+

  • W6EMT Emtech (single-band)

  • Kanga UK/US

  • Wilderness Sierra, Cascade, SST, and NorCal 40A

  • And many, many, many more…


Overview of qrp stuff3

Overview of QRP Stuff

  • What is QRP and Why Use it?

  • Overview of QRP Kits – a sampler

    • Small projects

    • Intermediate kits

    • Advanced kits

  • Manhattan Construction

  • Commercial Radios on QRP

  • More Fun Stuff

  • QRP Magazines and Clubs

  • How to read more on QRP


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Elecraft K1 transceiver

A compact, high-performance CW rig that you can build.

five watts is all you need to work worldwide DX

four bands into the affordable, easy-to-build K1-4 transceiver

  • http://www.elecraft.com


John hendricks al7ok bird point alaska with elecraft k1 transceiver kit

John Hendricks – AL7OKBird Point, Alaska with Elecraft K1 Transceiver (kit)

2002


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Elecraft K2 transceiver

  • The K2 is a full-featured HF transceiver

  • Build the K2 for QRP or 100W Operation

  • Can challenge even the Yaesu FT1000 Mark V on Rx

  • And you build it yourself…just like the old Heathkits

  • http://www.elecraft.com


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Elecraft K2 - AL7FS


Elecraft kx1 portable

Elecraft KX1 Portable

  • ultra-light, multi-band CW station with internal battery and automatic antenna tuner, full 20 and 40 meter ham bands, with 30 meters optional.


Overview of qrp stuff4

Overview of QRP Stuff

  • What is QRP and Why Use it?

  • Overview of QRP Kits – a sampler

    • Small projects

    • Intermediate kits

    • Advanced kits

  • Manhattan Construction

  • Commercial Radios on QRP

  • More Fun Stuff

  • QRP Magazines and Clubs

  • How to read more on QRP


Manhattan construction

Manhattan Construction


Manhattan construction1

Manhattan Construction


Manhattan construction2

Manhattan Construction


Manhattan construction3

Manhattan Construction


Manhattan construction4

Manhattan Construction


Manhattan construction5

Manhattan Construction


Overview of qrp stuff5

Overview of QRP Stuff

  • What is QRP and Why Use it?

  • Overview of QRP Kits

    • Small projects

    • Intermediate kits

    • Advanced kits

  • Manhattan Construction

  • Commercial Radios on QRP

  • More Fun Stuff

  • QRP Magazines and Clubs

  • How to read more on QRP


Commercial qrp radios

Commercial QRP Radios

  • Turn back the power on your big rig

  • Turn back the power on your semi big rig

  • Buy a QRP radio


Use 100 watt rig as qrp equipment

Use 100 watt Rig as QRP Equipment

Kenwood TS-450S fully adjustable – zero to 100 watts


Other qrp equipment

Other QRP Equipment

  • Direct Conversion Radios

    • Heath HW-7, HW-8Ten-Tec Century 21, 22

  • Superheterodyne Radios

    • Heath HW-9;

    • Ten-Tec Argonaut 505, 509, 515, Argo 556, Argonaut II

    • A&A Engineering K9AY 20, 30, 40m

    • Index Labs - QRP+, QRP++

    • Yaesu FT-301S, Kenwood TS-130V, Icom 731


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Index Labs’ “QRP Plus”

  • Super stable QRP rig

  • Great user interface


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Argonaut 515

  • QRP for CW and SSB


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Heathkit HW-8

  • 4 band direct conversion CW QRP rig


Overview of qrp stuff6

Overview of QRP Stuff

  • What is QRP and Why Use it?

  • Overview of QRP Kits – a sampler

    • Small projects

    • Intermediate kits

    • Advanced kits

  • Manhattan Construction

  • Commercial Radios on QRP

  • More Fun Stuff

  • QRP Magazines and Clubs

  • How to read more on QRP


Club projects

Club Projects

  • Northern California (NorCal) QRP Club

    • Sierra, Cascade, NC40a, 40-9er, 38 Special, SST, NC20a, SMD BC Receiver

  • NJ QRP Club

    • Rainbow Tuner, Fireball 40, MicroBeacon, SOP Receiver, PSK31 Audio Beacon

  • Columbus QRP Club

    • MRX-40 ultra-compact receiver

  • St. Louis QRP Club

    • St. Louis Vertical

And much, much more.


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Portable Paddles

  • N2APB enclosure for New Zealand ARC project


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N2CX “Rainbow Tuner”

  • Kitted by the NJ-QRP club

  • Resistive (absorptive) SWR bridge w/LED indicators

  • Built-in tuner suited for half-wave end-fed antennas


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N2APB’s “Rainbow Tuner”

  • Custom enclosure with panel mounted

  • switch for tuner inductor settings


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The N2APB Field Stack

  • Batteries

  • Rainbow Tuner

  • 38S Xcvr

  • QRP paddles

This is what N2APB takes on biz trips (along with “Halfer”

half-wave end-fed wire for 30m). Easily fits in small briefcase!


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Mini-Keys from Whiterook

  • Great for portable use!


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The NorCal Paddles

  • First club project not being electronic-related

  • Unfinished kit … yields superior quality


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Miniature QRP Paddles

  • Original design by WK8G


Overview of qrp stuff7

Overview of QRP Stuff

  • What is QRP and Why Use it?

  • Overview of QRP Kits – a sampler

    • Small projects

    • Intermediate kits

    • Advanced kits

  • Manhattan Construction

  • Commercial Radios on QRP

  • More Fun Stuff

  • QRP Magazines and Clubs

  • How to read more on QRP


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Alaska QRP Club

  • No officers, no directors, no constitution & No dues.

  • Meets the Third Friday of every month - 7:00 PM (Some show for dinner at 6PM)

  • Meet at Dennys (in the back room) on DeBarr near Bragaw.

  • Contact is Jim Larsen, AL7FS, 345-3190. [email protected]

  • http://www.qsl.net/kl7aqc/


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American QRP Club

  • AmQRP carries “journal-quality” articles,

  • project descriptions, event coverage, etc.

  • http://www.amqrp.org/


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QRP

Publications

  • The mainstay of QRPer information

    • Homebrewer from AmQRP

    • QRP Quarterly from ARCI

    • SPRAT from G-QRP


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QRP Amateur Radio Club International

  • QRP ARCI is superset of all QRP clubs

  • http://www.qrparci.org


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  • One of the premier QRP Clubs in America

  • http://www.njqrp.org/


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The NorCal home page

  • Northern California QRP Club

  • http://www.norcalqrp.com/


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G-QRP Club – Great Britain

  • http://www.gqrp.com/


Support groups for addicts

Support Groups for Addicts

  • QRP Amateur Radio Club International (ARCI)

  • http://www.qrparci.org/

  • Internet QRP Club (QRP-L mailing list)

  • http://qrp.lehigh.edu/lists/qrp-l

  • NJ QRP - http://www.njqrp.org

  • NorCal - http://www.norcalqrp.com.

  • Adventure Radio Society, Knightlites (NC)

  • Maryland Milliwatts, NW QRP

  • Alaska QRP - http://www.qsl.net/KL7AQC


Qrp kits not all avail

QRP Kits-Not all avail.


Qrp kits not all avail1

QRP Kits-Not all avail.


Qrp kits still available

QRP Kits-Still Available

And Kits from lots of Vendors

http://www.amqrp.org/misc/links.html


Qrp kits documentation available

QRP Kits-Documentation Available


Qrp kits documentation available1

QRP Kits-Documentation Available


Kd1jv at sprint 3

KD1JV – AT Sprint 3

  • QRP Kit-still available – about $160

  • 80-40-30-20 meter CW at up to 5 watts


Norcal keyer

NorCal Keyer

  • QRP Kit - still available – $16.50

  • Memory keyer, with 3 programmable 40-character memories, iambic A & B mode, straight key and bug mode, 2 beacon modes, and variable speed control by either a 100K pot or the paddles themselves.


You might ask why qrp

You might ask, “Why QRP?”

  • It’s FUN!

  • That about says it all.

!!!


Qrp references literature

QRP References: Literature

  • QRP Power, published by the ARRL

  • QRP Classics, published by the ARRL

  • W1FB’s QRP Notebook, published by the ARRL

  • The History of QRP, by Adrian Weiss, W0RSP, ISBN 0-9614139-1-3

  • The Joy of QRP, by Adrian Weiss, W0RSP, ISBN 0-9614139-0-5

  • … and many, many more!


Questions

Questions ???


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