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I have attached my first pass at the "MBITX TUNEUP" instruction, and welcome your comments.? I have aimed for ease of understanding, particularly for newcomers to our interesting hobby.? -- Jon

Put a pot in between the audio from the computer and the mic input to the radio. Then you can adjust for the desired level. Alternatively check to see if you can control the output level, either from

I have a 3.2 ordered and waiting for it to arrive. I am using the 1.08CEC firmware from Dr. Ian and like it a lot. I am adding 8 switches to it. I know the manager has options for 6 but I am adding

yes...it frees up 6 i/o lines kn4ud@...> wrote: -- Paul Mateer, AA9GG Elan Engineering Corp. www.elanengr.com NAQCC 3123, SKCC 4628

I have a 20 meter OCX and enjoyed building it. No problem to build at all and it has all the necessary equiptment built in to align it with. I liked it enough to order another in 40 meter band. kn4ud

I2C frees up some pins. I2C only uses 2 pins plus power and ground. This was my reason to go to I2C. 73's kn4ud -- Allen ?Merrell

Thanks for posting the link. Hans’ writing is comfortable and pleasant to read. I THINK I’m finally starting to understand how some common radio circuits work. Brilliant! :-) Old Engineer. Young

Yes. The firmware is backwards compatible. - f

Thanks for the quick reply - I really appreciate it. I do some QRP building and experiment a little, but I've never gotten into the micro controller scene much at all other than reading up on it.? 50

As hams have hacked or modified their uBITX transceivers, some have moved to a 4-line LCD controlled via an I2C connection.? The electrical connections with a 2x16 or a 4x20 LCD look the same, so why

Thank you very much.? Appreciate it. Best regards, Tom - W1TEF

Ian, ?? I can't wait for this. Keep up the good work. wish I could help testing but I am working away from home. Stephanus K6NG

Yep and everyone we to adding a preamp or compressor.? What they are trying to fix is the output of the 45mhz mixer is very low and even at 80m the power amp if run that way puts out about 10W.?

The LM1085-12 has a dropout voltage of 1.3v typ; 1.5v max. The lm1117ADJ likewise has a low dropout voltage but would require a couple more parts since that part doesn’t come in a fixed 12v version.

Before playing too much with it, you can get just the Arduino processor and play with it. They are only about $ 2.50 from China off ebay if you don't mind waiting 3 or so weeks. This is what I bought

With the display facing you, turn it so you cal look into the right side of the display between it and the board behind it. You will see a small USB connector facing you . . Forgot what it is called ,

While I've not used the QCX I know its progenitor the KK7B MiniR2, R2pro, MicroR2 very well and yes?the direct conversion image rejecting RX sounds very very good. I've useed that for SSB TX too. The

good evening have you a schematic to wiring ssm2167 module on ubitx thanks for? ?your response 73 jo f6cht

Not to start an "oil thread" = motorcycle & aircraft? bloggers go on for months each time someone says "what about oil?" 4th pin----- 2nd GROUND or +5/12 ?? THAT IS THE QUESTION.... Perhaps the

UBitx bought in January for sale.? Nothing has been assembled.? I have 2 and deciding to sell one.? Price is $115 free U.S. shipping (PayPal preferred). Email if interested 73 Tim? KF7VUT