Brian, Evan has explained the slider function if you have a nextion display. Using the memory manager you can also do the same thing. There is a selection for the 1st IF (45mhz) calibration. Evan show

#v4 #ubitx-help #audiocircuit

B, One of the features of the CEC software is the ability to “shift” the if frequency. With a Nextion graphics display this is done with an on screen slider. I will assume you are using the stock char

#v4 #ubitx-help #audiocircuit

IF slider? Not sure what you're asking here. There is no "slider", just the VFO/Volume knobs. If you're referring to the BFO, then yes, I do get the expected changes in volume/tone while adjusting. B

#v4 #ubitx-help #audiocircuit

Evan, I only extracted the V234 folder, and that's what I loaded. Thanks, B

#v4 #ubitx-help #audiocircuit

Brian, what happens to the received audio when you shift the IF with the slider? Does the audio get louder or weaker? Barry

#v4 #ubitx-help #audiocircuit

There are two versions of the CEC v1.2 software. One for v4 and earlier and one for v5 and later. How to get the correct file or to select the correct defines should be in the information files in the

#v4 #ubitx-help #audiocircuit

CEC v1.2.

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What firmware are you running in the v4? Barry

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I seem to have things tuned up better, but the audio sound a little odd. I've attached video/audio to see what I'm talking about. I can move the frequency around but a little low, a little high, and o

#v4 #ubitx-help #audiocircuit

No, the difficulty existed prior to the mod, and I have bypassed it just to be sure. I've got it tuned much better, but still seems a little off. B

#v4 #ubitx-help #audiocircuit

Thanks Vic. Audio seems pretty consistent across bands, and I seem to have gotten tuning closer, but still not happy. I'll see how my values compare with yours, which may give me a clue on what is goi

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Brian, Have you the right CEC version for your board ? Check! Raj

#v4 #ubitx-help #audiocircuit

Poor sensitivity, i wonder if your agc mod may not be properly installed, bypass it if you can. 100 kHz off? That I cannot imagine, but of course address with pll correction. Now bfo calibration is mu

#v4 #ubitx-help #audiocircuit

Is the audio low on all bands or just 20m and above? I also have a V4 and it needs a couple audio mods, one to fix a distortion problem and the other to equalize audio output. Here is a link to the mo

#v4 #ubitx-help #audiocircuit

I've taken this project off the shelf, put it back on, and taken it back off a couple times, but want to put it to work on SOTA/POTA but seem to be stopped at the 5 yard line! Its fully assembled, box

#v4 #ubitx-help #audiocircuit

Vic Nicely written. Alfdoc1 The only main issues with a v4 are doing something about harmonics and spurious, and considering an audio output amplifier. I used an external relay board, but there is eno

#v4 #ubitx

The V4 fixed some of the issues with the original uBitX and is worth building. Nothing wrong with the standard display and you can still upgrade the KD8CEC software to add features and use the 2-line

#v4 #ubitx

In my opinion there's nothing wrong with the 16x2 display, adequate and simple. I'd keep the V4 and hack freely, knowing it could be replaced. The uBitx is for hacking.

#v4 #ubitx

Alfdoc1, If it were me I would finish what I have and then add the Nextion and KD8CEC firmware to get a good graphical interface with lots of future mods possible (like adding an S Meter for one). I e

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I really liked building and operating 2 Bitx 40s (one for son-in-law), and bought uBitx v4 for more options, including possible digital. I printed the front and rear panels, knobs, and started that wi

#v4 #ubitx