Oct 29
In December 2016, Ashhar Farhan and the company HF Signals in India released the BITX40, a simple SSB radio for 40 meter HF. For $45, one could buy the kit with its preassembled board and minimal soldering required to be on the air. Soon after, it was packaged with an Arduino/si5351 based digital tuning mechanism …
Jun 09
Welcome to the June 2019 QSX Update. We’ve spent some time collecting information about the QSX and thought you’d like to read it all in one place. At the Four Days In May conference (FDIM), Hans Summers did a presentation about the QSX, and it’s been collected in audio. Both the audio and a slideshow …
Feb 21
UPDATE July 16th: It’s $6.99 until July 26th, the lowest we’ve seen it! Hey QRP Folks, I just saw that the Excellway EF01 case, so commonly used on BITX40 and uBITX builds is *ON SALE* until February 28th. Be sure to pick one or two up while the price is so low. They’re only $8.99 …
Feb 07
Last year I thought the BITX40 was “done”. It successfully worked on 80, 40, 30, and 20m. It was truly multi-band! The trick to doing that was to make the Band Pass and Low Pass filters pluggable using QRP Labs filters. One only needed to open the radio, change the filters, and retune the VFO. …
Jan 09
Cameron Tribe, KI7MNW recently posted his homebrew QRP transceiver on the Amateur QRP Radio group on Facebook. It’s completely scratch built and borrows design elements from several sources including the BITX40. Follow all the way to the bottom for a picture gallery, schematics, and source articles. Tonight I finished my homebrew 40m QRP transceiver. I’ve …
Dec 08
In this post, we’re going to show you how you can replace the relays in a BITX40 radio. You can use the same method to replace the relays in your uBITX too. Use caution and common sense when doing this. Here’s a link to the relays I used: If you’re using the Axiom relays for …
Nov 05
Recently on HackADay.com there was an article called “FT8: SAVING HAM RADIO OR KILLING IT?” which drew fire from some and praise from others. The article title itself was a little click-bait-y but justifiable. According to the source article over at flexradio.com FT8 lovers and haters are split almost 50/50. Some say its awful because FT8 …
Aug 28
One of the amazing things about Amateur Radio is that you can turn the hobby into whatever you want it to be. You can spend thousands of dollars on all the latest gear with a 130 foot tower with giant beams atop it. OR…. you can spend as little as possible and have at least …
Jul 21
I posted last about a giant recumbent bicycle build. In that post I mentioned that I built a welder. Well, I’m ramping up to build another recumbent. So that means we need another welder. And at first I was going to build another welder, but then I discovered Offerup.com. Offerup is how I got some …
Jul 09
I used to ride bicycle. A lot. Between 2005 and 2008, I commuted to work by bicycle in Reno, NV. It was an 11 mile round trip along a major thoroughfare. While I eventually rode a recumbent bicycle, I started out on a walmart full suspension mountain bike. That lasted a month or less. Then, …
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