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Hi everyone, I tried to do this mod:?https://ubitx.net/2018/02/16/power-amp-fix/ I checked everything for shorts, and a multimeter connected to the power input shows typical capacitor behaviour.

Received what I believe is Version 1 of mBITX in January 2018. Built unit and it worked fine until the TDA2822 audio amp smoked and burned. Replaced TDA2822 and know that it is inserted and soldered

Hello Paul, you need to download KD8CEC SOFTWARE and then transfer it to your 4.3 ubitx I had similar problems but all were resolved with the sioftware,,I use Richard G3 CWI dsp W/N cw filter works

Looks very nice Malcolm, I bought one of the 3.2E inch Nextion displays also, but I don't want to modify my already existing uBitx because it's all laid out for the 16X02 display and it looks good. I

Thanks, I understand that the OP has a lot of? ADE-1-24.? Thus I decided to remove my earlier comment. regards ?sarma ?vu3zmv

I would guess that the install went badly. I think that there is a program called Windows Update manager that you should look at and see ifit will allow you to uninstall the update. I also think that

Tnx Jerry for this valuable explanation in plain English. I learnt a lot from it. Hope this topic could become a question in the FCC exam if not included yet (I don't remember I have ever seen it).

Great job Malcolm. Where did you buy the tuning knob? thanks Carlo IZ4SJP

Do you have a photo on it installed so I can get the orientation? Thnx

Many thanks for that Jerry! Live and learn, yes solely cw, so filters will be the way to go. SSB for me would be a bonus that I probably wouldn't use ! The main source of irritation for me is the very

Guys, Sorry if I ask a silly question. Do I have to switch Arduino nano to mega2560 if I use the Nextion display? If it’s not the case, what is your incentive to switch them?, I’m just curious.

The receiver spec's how big of a signal goes in to give a desired result. The microphone spec's how big of a signal goes out given a specific input sound level. So the first gets a smaller number if

Awesome bezels from this site, http://compfranon.uk/product/bezel-for-nextion-3-5-lcd-touch-display/ Very professional looking.? Stephanus

I was using my ubitx v4 with a 12v 3a power brick all was going well. then it powered off and back on on its own and now when I transmit I get a high powe rcarrier and squeel but no audio .

Michel, thanks for sharing this.? I will check this out and make changes. Have you seen any other problems that should be addressed. Thanks again for sharing this issue. kn4ud -- Allen ?Merrell

Agreed - How *can* you "counterfeit" Open Source products??

Hi Razvan, The pins of interest are pin 2 and 5. Since they belong to the other transformer, you might expect different LO leakage at higher frequencies. Other than that, you will get a lot of bang

Theoretically the mixer (transformers, diodes) should be balanced and whether you ground pin 2 or pin 5 makes no difference, especially within the specified working range (0.5-500MHz). However,

Hello all Fine job Juddie, congratulations! 73 Saulo PY7EG 2018-07-15 14:40 GMT-03:00 WD8WV <juddie.d.burgess@...>:

Hello Mike and Bo, Thank’s for your responds, I agree with Mike, I need the sketch sources, for some modifications. eg: pins assignations, specifics functions for myself and other choices. I can