New Project (Bitx20A Radio) - Page 1
Forum section: electronics / projects

author: adnewhouse
author_rank: Contributor
timestamp: January 23, 2013, 03:51:12 am
content: I'm new at this forum but since I just embarked on a new project; I thought I would share a little about it. The project is a 20 meter SSB voice radio. It is a kit sold by Doug athttp://qrpkits.com/. The project is to actually assemble the kit. The kit itself has quite a few parts crammed on a single double sided PCB and a digital dial. Staying organized is probably one of the most important parts in getting it to work the first time around. The radio has a maximum output of 10-15 watts on the 20 meter amateur radio band. So far I'm about 4/6 of the way done. I have the AF amp, Mic amp, BFO and mixer done (Images at the end). I also finished the digital dial, which although simple enough, was my first try a surface mount soldering. I'm quite pleased with the results so far and I'm impressed with the quality of the kit itself. I will update over time as I complete more sections. Keep in mind this is more than just a radio. For me it is an intro to analog electronics and soldering practice. It is also an intro to scopes, as I recently got a SDS7102 for diagnostics/calibration.Note: In order to transmit on amateur radio bands you must have a license (My call sign is KD2AJY).Questions and comments are appreciated.P.S. Not quite sure where this post should be so don't kill me if it's not in the right place.

author: vk3yedotcom
author_rank: Frequent Contributor
timestamp: January 23, 2013, 07:50:54 am
content: You couldn't have picked a better project. You will work people all over the world when done.I built a BitX about a year ago (for 40m) based on the original design with some mods.About the easiest and quickest SSB transceiver I've ever built.A look inside and demo is here:Peter

author: minibutmany
author_rank: Regular Contributor
timestamp: January 23, 2013, 04:05:18 pm
content: Hey Adam!I see you got the scope screenshots to work...pretty cool.Sometime I should probably post my rig and see if anyone can fix it, the guys on the BitX forum a likely sick to death of all my posts. See you later.

author: deephaven
author_rank: Frequent Contributor
timestamp: January 23, 2013, 09:05:33 pm
content: Quote from: vk3yedotcom on January 23, 2013, 07:50:54 amGreat example of a true home brew.73 de G8AYC

author: adnewhouse
author_rank: Contributor
timestamp: January 23, 2013, 09:32:29 pm
content: I kind of wish that I built the Bitx dead bug style but I didn't due to lack of experience. Next time I make a radio, it will definitely be completely dead bug style. I'm thinking I'll make a 40 meter Bitx.

author: PA4TIM
author_rank: Super Contributor
timestamp: January 23, 2013, 10:02:52 pm
content: You mean like thishttp://www.pa4tim.nl/wp-content/uploads/2010/11/bitxbinnen2e.jpgMy first transceiver. I made one QSO to poland in a pileup during a contest. That was great. But fr me it was about building it. When it was finnished I was given a FTdx400 so I never used it, but still have it. Altough not working. A leaking lead accid battery turned out to leak in the tranceiver so when I wanted to use it later I notices some rattles, opened it to find out a lot of parts floatingaround missing legs ect. That accid is not really good for a bitx ;-)

author: vu3hzw
author_rank: Newbie
timestamp: January 17, 2023, 07:39:21 am
content: Have you guys tried the newest QRP Homebrew kithttps://itshamradio.com/sbitx-developer-edition-preview-released/