What is nanoKeyer? The nanoKeyer is an Arduino Nano based CW Contest Keyer Addon. It was designed specifically for use with the K3NG Arduino keyer open-source firmware adding many features and flexibility. The nanoKeyer is suitable as a standalone keyer or for keying the radio via the USB port by using the K1EL Winkeyer protocol from a connected computer…
Description: Commercial Geiger counters can cost hundreds of dollars. With this Geiger Counter Kit you can build your own at a fraction of the price! This easy to solder kit can be built in an evening and it works just like you think it would; clicking and blinking in the presence of radiation. Is grandma’s…
– Output power 1000W pep – All HF bands + 50MHz – High gain – High efficiency – Drain voltage indicator – Drain current indicator – MOSFET case temperature indicator – Forward and reverse power indicator – Adjustable gain for 5W – 20W input power – Using single Freescale MOSFET MRFE6VP61K25H – Temperature controlled fan…
Advances in communications in recent years have come at a startling pace. In the old days, tocommunicate via radio one needed a good antenna, a selective receiver, and a powerful transmitter.While those items are still useful, today there is one more item required: good software. The “weaksignal propagation reporter” software or WSPR (pronounced “whisper”) is…
Beagle Bone! New from the fine people who have brought us the Beagle Board, we now have a smaller, lighter, but powerful single board linux computer, Beagle Bone! We like this move to a more compact and integrated SBC. For example, there is onboard Ethernet and USB host, as well as a USB client interface…