Online registration is now open through Sunday, April 26th: FDIM 2026 Registration
For those who are new to the club or have never made the Four Days In May event, it is the annual gathering of the QRP Amateur Radio Club International. It is held in the Fairborn Ohio DoubleTree Hotel May 14 - 17 2026, beginning the day before the opening of the Dayton/Xenia Hamvention, and has events that take place during the evening of the Hamvention weekend. Hams who come to Dayton for the Hamfest can come one day early, and enjoy all that both events have to offer.
A discount block of rooms will be available at the DoubleTree for FDIM attendees. Upon registering, you will be emailed a link for reservation of these rooms.
At Four Days In May you are likely to run into your favorite QRP Quarterly writers, designers of the QRP equipment you enjoy, and friends you have worked on the air. You will see the new kits and rigs from QRP vendors, and have a chance to check out some amazing homebrew projects. And you will have the opportunity to converge on Saturday evening for our annual Awards Banquet, and celebrate the successes and honors of the QRP community.
We have a great roster of speakers lined up for our Thursday Symposium beginning at 8:00 AM. See the list posted below:
Ashhar Farhan, inventor of the BiTX radio, and proprietor of HFSignals, will be bringing along samples of a new kit which he will be giving away to attendees of the Thursday Symposium. He will then be giving a presentation Thursday evening at 7:00 PM in the DoubleTree Amphitheater to describe this new kit and other innovations from the past year.
Thursday evening is our Vendor Night beginning at 8:00 PM, where you will have the opportunity to see and purchase new kit offerings from our QRP community.
We will once again be hosting Rex Harper W1REX and his FDIM Buildathon beginning Friday afternoon. Details are still being sorted out, so check the QRPARCI.org website in the weeks ahead.
On Friday May 15 at 7:00 PM, Hans Summer will be presenting a technical topic in the DoubleTree Amphitheater on a subject yet to be announced, but be assured, you will not want to miss it!
Friday evening at 8:00 PM will be Club Night where our QRP clubs will have representatives present to answer your questions about their activities and offerings. Later that evening we will have our 2026 FDIM Transmitter Efficiency challenge - see the rules elsewhere in this issue. Be sure also to bring your latest homebrew projects to enter in our Homebrew Contest.
On Saturday May 16, our event culminates in our annual Awards Banquet. Please join us as we recognize the best of our QRP hobby.
The goal of Four Days in May is to pack as much QRP fun as possible into a brief four day weekend. The one thing that would make it even more fun would be to have YOU attend, too! If you have never been to FDIM before, make this the year to do so!
David W. Cripe, NM0S
Online registration is now open through Sunday, April 26: FDIM 2026 Registration
FDIM is being held at the same physical location as last year but the property has a new name:
DoubleTree Fairborn (formerly Holiday Inn)2800 Presidential Dr.Fairborn, OH 45324
NOTE: Because of the extremely high demand for a limited number of rooms, we will email the DoubleTree registration link after receiving and processing your QRP Store transaction for a symposium or banquet reservation.
Below is the pricing for 2026 FDIM:
Using the QRP ARCI Store will be the preferred method of reserving your spot at the conference and/or the banquet, including receiving the hotel block registration code.