High resolution, high dynamic range panoramic adapter for TS-590 by K3IT. Photo by K3IT Parts needed: – 4z5lv Afedri SDR-Net 0.1-30MHz 80 MSPS direct sampling receiver (32 kHz to 1.3 Mhz output bandwidth) – Z10000 universal buffer amp by Clifton labs, set for 10db gain – SMA bulkhead connector, thin teflon coax cable Total cost:…
The ultimate QRSS Transmitter Kit is produced by Steve G0XAR and Hans G0UPL in 30, 40 and 80m versions. The kit contains the PCB, LCD, programmed microcontroller and all board-mounted components. Download the instruction manual using the link above. The PCB is quite compact and moderate care is required in the construction. A rich array…
Apparently there’s a retro vogue going on in the design world when it comes to appliance, power cords. Shown here, a selection of colorful braided fabric cable looms available from Sweden’s FRINAB Fristad Industri Aktiebolag. The cable is available in small quantities, online through their NUD Collection brand, which includes a webshop that will sell…
DIY Project: TT1A 2 Band CW transmitter kit. Introduce price is only $129! Working on 40M and 20M, (optional 15M). Output: 4W. Power supply need: 200-250V 100ma, 6.3V 2A. Enjoy building this 2-band CW tube transmitter, watching the comforting glow from the tube pumping out 4W, only a weekend’s work. Install in custom made enclosure…
Overview OpenBeacon is an open source crystal-controlled QRPp beacon transmitter kit which can output a variety of slow-speed modes, including QRSS, DFCW, and Sequential Multi-tone Hellschreiber. It is configured via USB port, so there are no jumpers to set and you can easily adjust all of the operating parameters via command line. Once configuration is…