Mar 20, 2025 · 4SQRP designs are the result of thousands of hours of engineering time in service to the QRP community. We pride ourselves on having the most unique and original kits available anywhere. We make full design documentation freely available on our website as a service to builders and experimenters.

The Teensy 4.1 microcontroller is the heart of the T41 and has 7.9MB of flash memory for program storage and 1MB for data. The microcontroller performs all of the T41's SDR functions; no PC, laptop, or tablet needed.

The Four State QRP Group Designed by David Cripe, NMØS . Click photo for Larger Image This excellent random wire antenna tuner is the classic T-Match design which is known for wide matching range and smooth operation. Dave has added a nice wrinkle - the SWR indicater employs TWO leds, not the normally seen single red LED.

please make it out to "Four State QRP Group" in the amount of $125.00 for each kit purchased, and mail to: Four State QRP Group Johnny Matlock ACØBQ 379 23rd Road Lebo, Ks 66856 The Bayou Jumper is carefully kitted and shipped by Steve Miller, N0SM Please direct shipping, kit, and part related questions to Steve Miller ...

Mar 20, 2025 · The Four State QRP Group is pleased to offer these quality kits to the QRP community. Click the links below for each kit's page, which includes design features, specifications, documentation, and ordering information.

The Four State morning net has been convened for members who like to start the day on the air. We meet each Thursday morning at 8:00 AM Central on 7122 kc. 7122 has become the Four State 40M hangout frequency, and often members can be found there on any morning.

The Four State QRP Group Designed by David Martin, NA1MH . Click photo for Larger Image The Soup'er Up'er is an add-on accessory board for the Bayou Jumper that adds a sidetone for transmitting, receiver fine tuning, and the Hi-Per-Mite CW Filter - …

The Four State QRP Group Designed by David Cripe, NMØS . Click photo for Larger Image The Cricket is a low cost entry level minimalist CW transceiver for the 40 meter band. Chosen as the build session kit for OzarkCon 2019, it bears a family resemblance to the well known but much lower performing Pixie. However it is very different and vastly ...

The Four State QRP Group Designed by David Cripe, NMØS and Virginia Smith, NV5F . Click photo for Larger Image The Cricket is a low cost entry level minimalist CW transceiver for the 20 meter band.

Arising from Dave's entry in QRP ARCI's 72 Part Challenge Design Contest in 2010, the Cyclone 40 is an enhanced version of the original design. The transceiver designed for the design contest had 72 total parts, performed well, and won honorable mention.