Welcome to the video archives of Four Days in May, the annual convention of the QRP Amateur Radio Club International.

FDIM 2025 - Stealth Ops From Hotel Rooms and Other Unlikely QTHs
48:57
FDIM 2025 - Stealth Ops From Hotel Rooms and Other Unlikely QTHs
FDIM 2025 - Bringing SSB to the QMX
1:02:45
FDIM 2025 - Bringing SSB to the QMX
FDIM 2025 - Beyond the '612
53:11
FDIM 2025 - Beyond the '612
FDIM 2025 - A History of Four Days In May
35:24
FDIM 2025 - A History of Four Days In May
FDIM 2025 - A Project for the Decades. A SOTA CW Tube Transmitter
51:20
FDIM 2025 - A Project for the Decades. A SOTA CW Tube Transmitter
FDIM 2025 - Introduction to LTspice
53:40
FDIM 2025 - Introduction to LTspice
FDIM 2025 - FT8 as a QRP Messaging System
46:19
FDIM 2025 - FT8 as a QRP Messaging System
FDIM 2025 - The T41-EP Project: Seven Years Later
55:36
FDIM 2025 - The T41-EP Project: Seven Years Later
FDIM 2024 - The Dodecahedron: Time Synchronized Morse via CCW and QRSS by Reg Beardsley
1:00:12
FDIM 2024 - The Dodecahedron: Time Synchronized Morse via CCW and QRSS by Reg Beardsley
FDIM 2024 - The Amazing Thermionic Valve by Greg Latta AA8V
1:28:43
FDIM 2024 - The Amazing Thermionic Valve by Greg Latta AA8V
FDIM 2024 - Designing the Elecraft KH1 - From Vision to Reality by Wayne Burdick N6KR
1:03:49
FDIM 2024 - Designing the Elecraft KH1 - From Vision to Reality by Wayne Burdick N6KR
FDIM 2024 - Amplifying Your Adventures, Minimizing Your Power by Thomas Witherspoon K4SWL
54:35
FDIM 2024 - Amplifying Your Adventures, Minimizing Your Power by Thomas Witherspoon K4SWL
FDIM 2024 - Adventures of a QRP Evangelist by Cliff Batson N4CCB
54:42
FDIM 2024 - Adventures of a QRP Evangelist by Cliff Batson N4CCB
FDIM 2024 - zBitx - Bringing CW into the 21st Century by Asher Farhan VU2ESE
52:35
FDIM 2024 - zBitx - Bringing CW into the 21st Century by Asher Farhan VU2ESE
FDIM 2024 - Top 10 Junkbox Projects by Han Summers G0UPL
55:40
FDIM 2024 - Top 10 Junkbox Projects by Han Summers G0UPL
FDIM 2024 - The Construction and Use of a WhosZat by Jack Purdum W8TEE
33:38
FDIM 2024 - The Construction and Use of a WhosZat by Jack Purdum W8TEE
FDIM 2023 Ashhar Farhan VU2ESE 'A VHF radio for the field'
40:48
FDIM 2023 Ashhar Farhan VU2ESE 'A VHF radio for the field'
FDIM 2023 - Adam Kimmerly K6ARK 'Extreme, yet Practical HF Antennas for Portable Ops'
53:30
FDIM 2023 - Adam Kimmerly K6ARK 'Extreme, yet Practical HF Antennas for Portable Ops'
FDIM2023 - George Heron N2APB ''How Low Can You Go?', - Modern Coherent CW (CCW) Transceiver Design'
50:38
FDIM2023 - George Heron N2APB ''How Low Can You Go?', - Modern Coherent CW (CCW) Transceiver Design'
FDIM 2023 - Greg Latta AA8V 'Aluminum Chassis Construction' *AUDIO PROBLEM*
55:29
FDIM 2023 - Greg Latta AA8V 'Aluminum Chassis Construction' *AUDIO PROBLEM*
FDIM 2023 - Jerry Wolczanski KI4IO 'Building an All-Analog Phasing Transceiver for 40M CW'
44:01
FDIM 2023 - Jerry Wolczanski KI4IO 'Building an All-Analog Phasing Transceiver for 40M CW'
FDIM 2023 - Rick Campbell KK7B and Ana Rugani K7XNA 'Hidden Transmitter and Interference Hunting
53:47
FDIM 2023 - Rick Campbell KK7B and Ana Rugani K7XNA 'Hidden Transmitter and Interference Hunting
FDIM 2023 Hans Summers G0UPL Evolution in Radio Design: building the next
1:16:00
FDIM 2023 Hans Summers G0UPL Evolution in Radio Design: building the next
FDIM 2022 Hans Summers 'Designing a modern digi-mode transceiver'
58:36
FDIM 2022 Hans Summers 'Designing a modern digi-mode transceiver'
FDIM 2022 Ashhar Farhan 'Analog Again - The Daylight Radio'
56:45
FDIM 2022 Ashhar Farhan 'Analog Again - The Daylight Radio'
FDIM 2022 Adam Kimmerly 'Pint Sized Portable'
38:20
FDIM 2022 Adam Kimmerly 'Pint Sized Portable'
FDIM 2022 Al Peter and Jack Purdum 'T41-EP CW Decoder'
52:03
FDIM 2022 Al Peter and Jack Purdum 'T41-EP CW Decoder'
FDIM 2022 Steve White 'The Joy of Building'
45:41
FDIM 2022 Steve White 'The Joy of Building'
FDIM 2022 Keith Whites'Teaching Electronics with the NorCal 40'
56:03
FDIM 2022 Keith Whites'Teaching Electronics with the NorCal 40'
Dino Papas - Inexpensive Test Gear FDIM 2021
26:02
Dino Papas - Inexpensive Test Gear FDIM 2021