Category: Kits

A High-Performance HF VFO using the AD9854 DDS IC During the late 1990s, radio frequency homebrewers really began taking advantage of the conveniences that DDS technology offered: 1-chip simplicity, DC-to-30 MHz signal generation ability and relatively decent signal purity. Since then, Craig Johnson, AA0ZZ and others have been creating and refining signal generators using this… Continue reading AA0ZZ IQ-VFO Kit

A flexible and reusable microcontroller project allows you to run ham radio experiments specified in the PIC Elmer 160 course. The PIC-EL is currently available as a partial kit (pcb+limited parts) from the AmQRP Club. The AmQRP “PIC-EL Kit” is a multi-function PIC16F84A-based project board that serves as the basis for the experiments being conducted… Continue reading PIC-EL Kit – The PIC Elmer 160 Project Board

A Small, Low-Cost “Software Defined Radio” Receiver Kit For 40-Meters, Used With Powerful Software On The Pc For Multi-Mode Operation The SoftRock-40 is a small, low-cost, good-performing 40-meter “software defined radio” receiver that plugs into a computer USB port and delivers I-Q audio signals to the computer’s sound card. It was designed by Tony Parks,… Continue reading SoftRock-40

Smooth, Mechanical, 48-Pulse Rotary Encoders We had to order a large quantity of these nice, smooth (detent-less) rotary encoders in order to get a low price for use in the Micro908. But as a result, we ended up with LOTS extra … and we’re willing to sell these AT COST (plus mailing) to homebrewers. 2-phase… Continue reading Rotary Encoders

A Clean, Adjustable RF AMP for DDS Daughtercard Owners or for Standalone Use! The DDS Amp is a “grand-daughtercard” that is used in place of the MMIC amplifiers (MAR, MAV, ERA) provided previously on the DDS Daughtercard. Once you assemble this little kit and install it onto the DDS card, you will be able to… Continue reading DDS Amp Kit

The venerable Tuna Tin 2″ QRP transmitter kit is once again available! After having been revived and modernized by KI6DS and NorCal QRP Club a number of years ago, literally thousands have been sold by NorCal, NJQRP and the Ft. Smith QRP Group. Now, the tradition is being kept alive by W1REX and the Maine… Continue reading Tuna Tin 2 Kit