QRP Amateur Radio Club International

QRP ARCI logo

QRP ARCI is a club for low power enthusiasts worldwide.

We produce a professional quality magazine (QRP Quarterly), organise an annual conference at Dayton ('Four Days In May' or FDIM), and sponsor various QRP contests and awards.

 

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FDIM 2015 - register now !

The FDIM venue - Holiday Inn, Fairborn.

Four Days In May (FDIM) - the biggest and best QRP event in the World !
Held each May, it starts the day before the famous Hamvention in Dayton, Ohio and runs for 4 days

Online registration for the seminars and banquet is now open.

For more information visit the FDIM webpage.

QRP Quarterly - April issue

The latest QRP Quarterly (April 2015) is scheduled to be mailed to subscribers on Wednesday 22 April 2015

Ensure delivery of the next 4 paper copies (and access to the digital edition) by joining QRP ARCI now - $25 for one year ($28 if not in USA)

Spring QSO Party

Spring QSO Party

Saturday 4th April 2015, 1200z
- Sunday 5th April 2015, 2359z

One of the biggest QRP contests of the calendar

Closing date for entries is 19 April 2015.
Please send in an entry !

Contest Rules

New QRP ARCI publication

Best Of Idea Exchange

QRP ARCI announces the publication of a new book - "The Best of Idea Exchange"

This will quickly become a needed information source for your work bench. The content is drawn from 20 years of the Idea Exchange in past QRP Quarterly magazines.

There are 138 pages of useful information divided into seven sections -

  1. Components
  2. Circuit Design
  3. Test & Measurement
  4. Tools & Techniques
  5. Repairs & Modifications
  6. Antennas
  7. Miscellaneous Ideas

Order your copy online from the QRP ARCI Toystore

QRP ARCI on Facebook

Facebook

We have a Facebook page !

For up to the minute QRP news please 'Like' our QRP ARCI Facebook page

Central Florida QRP Group

Group members

Looking for some QRP activities in sunny Florida ?
 

Try the Central Florida QRP Group - they set up back in 2009 and hold monthly breakfast meetings.

Check out their group blog

Let us know if we can feature your QRP club, group or event !

QRP Frequencies

Center of Activity

These are not Calling Frequencies, they are Centers Of Activity - places where QRPers are likely to be found.

Of course, you may operate QRP anywhere that your license allows. If you have a VFO, then use it - but check around the QRP Frequencies on a regular basis.

Table of QRP Frequencies

Solar Activity & HF Propagation

Paul Harden NA5N is well known in QRP circles. At FDIM (Four Days In May) 2005 he made a presentation on Solar Activity and HF Propagation which has become a classic.

To understand more about the the effects of solar activity on HF propagation download his article - here

QRP Quarterly

QRP Quarterly - April 2015

QRP Quarterly - April 2015

 

Technical Articles
 
Idea Exchange (Mike Czuhajewski WA8MCQ)
    Bargraph SWR Indicator (N2CX)
    Tuning Tool using PCB (K7QO)
    Current Limiting for LED Displays (KC0ZNG)
    More BS-170 MOSFET Amplifier Notes (W0UFO)
    Homebrew Keyer using PCB Material (VE3CQH)
    Quick Change Solder Dispenser (K7QO)
    Oscilloscope Feet Made From Hardware (Bob Savino)
    Testing Fuses in Fluke DMMs (WA8MCQ)
    More Useful Prototyping Boards (KC0ZNG)
    Simple Continuity Tester (AA6KI)
Small Loop Antenna (George Dorner W9ZSJ)
Ionospherica (Kai Siwiak KE4PT)
The CALF - Audio Filter (Curt Milton WB8YYY and John Clements KC9ON)
Let's Build Something Part 2 (Ben Kuo KK6FUT & Pete Juliano N6QW)
Antennas 101: Feedlines as Impedance Transformers (Gary Breed K9AY)
 
The Joy of QRP
 
Editorial (Tim Stabler WB9NLZ)
From the President (Ken Evans W4DU)
Four Days In May (FDIM) 2015
Out and About with QRP (Craig Behrens NM4T)
QRP Clubhouse (Tim Stabler WB9NLZ)
QRP Contests (Jeff Hetherington VA3JFF)
    Results of the 2014 Holiday Spirits Homebrew Sprint
    Results of the 2014 New Years Sprint
    Results of the 2014 Fireside SSB Sprint
 

Mailing to subscribers - 22 April 2015


 

Sample of QRP QuarterlyTry it free !
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January 2015
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