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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

  • Conventional Icom 735, etc. 12 lbs.

  • 100w Tuner 6 lbs.

  • setup Astron RS-20 25 lbs.

  • TOTAL 43 lbs.

  • TRANSPORT Trunk of Car

  • QRP setup QRP rig 2 lbs.

  • 5w Tuner 2 lbs.

  • setup Power supply/battery 3 lbs.

  • TOTAL 7 lbs.

  • TRANSPORT Small 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


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


The “Tuna Tin 2”

AL7FS to W1AW – 20 meters

  • Simple Transmitter, less than 1W

  • W1FB original design


“Herring Aid” Receiver

  • Simple Receiver project

  • Mate to Tuna Tin 2 transmitter


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


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


N2APB’s “38 Special”

  • Custom cabinetry in LMB enclosure


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


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


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


The NorCal 40A

  • 40m 2W CW transceiver

  • Grandfather deluxe


The NorCal 20

  • 20m superhet CW

  • Great front end

  • Norcal kit for

  • 3rd world countries

  • Red Hot Radio


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


Small Wonder Labs’

“White Mountain 20m SSB”

  • 20m 2W QRP SSB transceiver

  • Solid design

  • Easy construction

  • No longer available


OHR – Oak Hills Research

  • Single band superhet CW rig

  • + improved


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


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


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



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








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-8 Ten-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


Index Labs’ “QRP Plus”

  • Super stable QRP rig

  • Great user interface


Argonaut 515

  • QRP for CW and SSB


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.


Portable Paddles

  • N2APB enclosure for New Zealand ARC project


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


N2APB’s “Rainbow Tuner”

  • Custom enclosure with panel mounted

  • switch for tuner inductor settings


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!


Mini-Keys from Whiterook

  • Great for portable use!


The NorCal Paddles

  • First club project not being electronic-related

  • Unfinished kit … yields superior quality


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


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/


American QRP Club

  • AmQRP carries “journal-quality” articles,

  • project descriptions, event coverage, etc.

  • http://www.amqrp.org/


QRP

Publications

  • The mainstay of QRPer information

    • Homebrewer from AmQRP

    • QRP Quarterly from ARCI

    • SPRAT from G-QRP


QRP Amateur Radio Club International

  • QRP ARCI is superset of all QRP clubs

  • http://www.qrparci.org



The NorCal home page

  • Northern California QRP Club

  • http://www.norcalqrp.com/


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 still available
QRP Kits-Still Available

And Kits from lots of Vendors

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




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!



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