Pretty much... you and i are on the same page. I use a little different PA transformer (61 material because ive found it to be more efficient) but otherwise basically the same. Dr. William J.

Just sent you PayPal for 2 kits of each... thands 72, God bless

Someone was good enough to email me and let me know the uBITX does seem to meet the -43DB down specification. So, I'm doing WSPR on 15,12 and 10M now. I did back down the audio drive level a little

makes sense to reuse parts where possible. My experience with output transformers is more ferrite the better. However the 2:4 turn transformers at 12-13V had very poor efficiency as in under 40% and

https://discord.gg/sfvhEvw channel to discuss ham builds

Mike, Thanks so much for sharing this. I have been trying to assemble a list of the mods that I want to do, and you just saved me the trouble! Very nicely done! 73's. Ken

Richard KB3VGW Please explain more. The URLs appear to be a group of some sort that requires sign-up for membership. Arv K7HKL _._

I was very excited to get my kit - I am pretty novice, but have a firm grasp of basic electronic theory - I followed the direction from HF Signals, and had it up and running pretty quickly, its

FB Ken, I should have included in my list a 330 pF mica cap across the primary of the output former and a push button switch to produce a carrier for tuning an AT or external PA, e.g. my sb200. Thanks

The spur get visible when the drive is up. Generally for 10M that means well under 5W. Some are better than others but I know of three that at 2W on 10M do not pass even at 40db down.

Does this tune up process work for Align the master clock on the version 4? When I press the encoder knob it begins to transmit.

I just finished building and installing the click eliminator in my uBITX and to my utter and absolutes amazement it worked the first time! I am an experienced kit builder but other then very simple

For those of you who are trying to learn Arduino programming, edX is offering a course, Arduino Programming, from novice to ninja. The course covers basic Arduino programming and connecting to and

Many Thanks Ian. You have help me to solve the problem. Firstly I have been pressing PTT and then keying up. When you described the changes I should expect and as I had no change just keying I

Can't comment on the audio. It s been changed for V4. However if you expecting a lot of hiss that not something it does. Hook it to an antenna and tune around to see. You should hear an increase

I ordered one just to have some more "fun" with. Being a broadcast engineer I love to rework something to make it work with something else, The one I ordered says from 20 mhz to 30 mhz it will do 250

Mike, could you please share details on how you did this? Thanks.

Just taking a guess that it’s a push button wired to the CW Jack that when pushed its transmits CW as if your holding down a straight key. At least that’s how I’m planning on doing it this

Joe, I have my TFT Display working fine. PTT and all. I have a question regarding bfo calibration. I am able to align it but unable to Save the bfo caiibration. I press the V Save button on the

Take a look at this: https://youtu.be/sXJmAhpAjeI I haven't tried to set the BFO in my uBitX, so I can't really vouch to this, but it makes sense and is easy to follow. It appears that it would