May 10
Update 5/11/2020: Article updated to reflect correct information regarding band availability Ever since HF Signals discontinued the BITX40, there’s been a gap in the available SSB QRP kits out there. Sure, there’s the uBITX, but that’s more complicated multi-band radio. For a beginner, a single band radio is easier to build and understand. Thankfully, the …
Feb 29
5/10/20: Updated information here: https://miscdotgeek.com/bitx-easy-more-details-tentative-pricing-and-release-date/ Hey everyone, been pretty busy and haven’t had a chance to keep up with some developments on the BITX Easy, but Sunil has been posting some tantalizing pictures on Facebook the last few days. If you’re not familiar with the BITX Easy, check out these posts:https://miscdotgeek.com/the-bitx-easy-more-details-emerge/https://miscdotgeek.com/the-bitx40-is-dead-long-live-the-bitx40/ Sunil has posted pictures …
Nov 25
Last year I wrote that Arduino was so easy, but I didn’t really follow up on that. A few days ago, RC (KE6BGN) commented that he was wondering if any progress had been made on the Arduino based VFO/BFO for the BITX40. There has been, and I have made a short video for your viewing …
Nov 08
I recently joined a group at groups.io called “qrp-tech”. It started in 2005 on Yahoo Groups, and eventually ended up over at groups.io. I was thrilled to find such a treasure trove of information and a thriving QRP community. Imagine my sorrow when just days later the group admin decided he was ready to move …
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 …
