Raj and Evan -- I am such an idiot. It is toooo embarrassing to admit to the mistake I made. As we all know, WSJT-X allows for setting of power level per band. I always pay attention to these settings

#ubitx-help

After 4 months of almost 24/7 wspr operation with a high percent of TX time, the 80m TX has failed. All the other bands are great. And on 80m, the TX/RX relay snaps like it should, just like it does o

#ubitx-help

Is it as simple as adding the(appropriate) resister in series with the meter + side and ground the meter - side? And where would I tap the a V4 board for the resister going to the + meter? Don Km4udx

#ubitx

Jeff -- the doc is "distributed". Meaning it is a wild wild West situation. Google search seems the only (poor) tool to identify CEC-related doc, vids, discussions. But others know better and someone

#firmware

+1 for Dean's (KK4DAS) approach. (1) CAT control USB cable drives both freq and TX/RX (PTT). (2) Audio patch cables drive the audio between laptop audio i/o and uBITX i/o. The simplicity and reliabili

#bitx20 #js8call

Adrien -- I did exactly this with a old 16v laptop brick power adapter. The 16v from the power adapter went direct (well, thru a fuse) to the brown wire, and direct to a DC-DC down converter making 12

We all love our uBITX. Did you know the uBITX makes a wicked good digital mode beacon station using WSJT-X's cool beacon mode called WSPR? Well it does. We have a uBITX tied for 4th place in world-wid

#antennas #cat

John -- I was in the same position. I had never updated an ardunio. But the benefits of KD8CEC's stuff was utterly compelling. So off the cliff I went. The "use case" for me was: I was inept at the pu

Curt, all points taken and well said. I'm slinking back to my marginally compliant operation. One, of several, reasons I like this hobby is mixing it up with folks who really know their stuff. I've le

As you can see this is a very personality driven affair. Three radio engineers will always have four opinions, all mutually exclusive. Hahah. My view: operate as is with firm control on drive levels.

Ted -- look at km4udx in any of the wspr-related web sites. All the multi-band results are uBITX and raspberry (clone) driven. Yes, my full sized antenna is not a good parallel to a wip antenna. But,

Yes, with 16v to the finals I get a few more watts. At 80m with 16V and 25w there is 1.6 amps running around -- and maybe more with spikes here and there? I've asked multiple folks on 80m (where I get

#ubitx #bitx20

Tom+++ I built an little Easy digi interface kit with small transformers, DC blocking cap, to bridge the ubix audio i/o to the laptop audio i/o. Then I realized by laptop audio i/o jacks were all brok

Curt -- I can reflow each pin if I pull up my pants and stop being a whousssssss. Good implyed question on the drive level. SWR meter says 28w on wspr on 80m, which means two full minutes of hard duty

#ubitx #bitx20

hello all! My beloved V4 uBITX has been working really hard and flawlessly 24/7 in wspr mode for (almost) months at a time. The results are impressive...frequently in the top 10 worldwide 2 way spot r

#ubitx #bitx20

Ashhar and Jerry -- thank you so much for the reply and info. I better understand the general antuino application. It is not a inline SWR/pwr meter, but it does a thousand other equally or more import

I have an early question (even before the support groups gets up and running...hahaha) Is the Antuino able to be left in line with a tap & pad or something as a semi permanent basis to my uBITX? Right

Dean and Skip speak wise truth. Do what they suggest, and your path will be fruitful. Every builder I know who rushed into adding the AGC board, or adding the spur reduction mod, or added a fancy exte

So there is a early draft users guide in the folders section with the following calibration steps. There may be better instructions in some other guide. I am way too lazy to do a complete search. User

#calibration #ssb

Yes Sarma -- I'm sure there is some extra noise someplace due to using the switching regulator. On the other hand, I also gained an extra voltage display, which I love, and I got to solder a new board