Tag Archive for QRP

Portable SDR available for pre-order on KickStarter

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From Michael KE7HIA: “If you aren’t familiar with Kickstarter, it is a crowdfunding website that helps people like me raise the money they need to complete projects. One thing that makes it interesting is that no one is charged unless funding reaches a certain level (this ensures that I don’t have to do all the…

A rare commercial posting

Pre-assembled, not kits

Via a mass mailing from LNR Precision: “We are happy to announce that LNR Precision will be soon opening up ordering for the LD-5, FX-4a, and the Mountain Topper. We expect the Fx-4a to open up for sale this week for the inital run of units with the LD-5 (mid-January) and Mountain Topper coming before…

Stirling power for radios? Not yet, but…

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Before the two Tom’s, Witherspoon (K4SWL) and Hanks (the actor), started promoting the concept of radio distribution to remote and impoverished areas of the world, there was Trevor Baylis who, in 1993 came up with the concept and initial design of the “self-powered” radio. Since then, the self-powered radio movement has spawned several similar radio…

Crossing the Atlantic with 2 milliwatts on 10m

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As I was letting my new WSPR transmitter stabilize yesterday afternoon I noticed a few stateside stations were decoding me even though the transmitter’s final amp circuitry was not yet on. Power output in this state is a bit under 2 milliwatts according to my recently calibrated QRP wattmeter. With that in mind, and considering…

CQWW 2014 – QRP & a battery take on the world

cqww_2014

. Well that was a whole lot of fun! I operated for a total of 5 hours and used a 1300 mAH battery to provide power to the KD1JV “Mountain Top Rig”. About 95% of my contacts were on 20m with the remainder being on 40m. Highlights: All continents worked 24 Zones worked 65 DX countries…