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Jeff, Appears that you are trying to compile just a single ".ino" file (i.e. ubitx_20).? You are missing the remaining required .ino files in the directory as supplied by HFsigs. Not the best coding

Knobs with all different sizes of bore... https://www.surplussales.com/ShaftHardware/Knobs-16.html Or fill 1/4 knob with epoxy after greasing the set screw and all the way in; remove set screw after

A short length of heat-shrink tubing, just length of the shaft and a size that will shrink nice & tight, will usually take up the slack between this shaft size and a more standard 1/4" knob opening.

It depends. If the function is used before it's defined, yes. The IDE is supposed to get around this problem, but I've had times when only the addition of a prototype fixed it. I cannot isolate the

the knobs can be found at radio rallies or hamfest but much easier to change for a standard sized pot of the correct value.You could also at a pinch pad out the thin shaft by wrapping with electrical

If the sketch is all .ino files do you need a declaration.

I couldn't find the right volume knob too. So I ended up finding those wire connectors with two vertical screws. In the end, admittedly it is a bit ugly, but does well the job.

Oops! Read the wrong function. There should be a function prototype for si5351bx_setfreq(). Try adding its prototype near the top of the code if it's missing or not in a header file. Jack, W8TEE -----

Is there a function prototype for setFrequency() near the top of the code or in a header file? While I am not familiar with the code, my guess is that the argument to the function is either a long or

Sean Rarely can a capacitor be replaced with a short circuit. Often it is blocking DC, or filtering it. Sometimes it can stay open, but likely the cap is necessary. You result seems to say so. See if

I have a version 3 board. I tried loading the original software for the nano and I am getting an error messages. 'si5351bx_setfreq' was not declared in this scope. Part of the code is shown below. I

Rod The cw and ssb transmit paths are routed differently, so its at least possible. If you can monitor power supply current, that might convey you have more output than you think on cw. I have used

If the OP aimed at pp9 batteries, a clear NO , as even in Rx mode you need 1.2amps or so. [email protected]> wrote:

If you mean 12.5 volts, that should work. you need about 3 amps or more. Check the voltage at the power supply when receiving and transmitting to see what it is doing. Curt

On Wed, 19 Dec 2018 at 8:19 AM, Bob Lunsford via Groups.Io<nocrud222@...> wrote: I saw somewhere a comment about the knobs. The encoder knob is not a problem since it has a pretty much

Hi, Love it. The old saying “If there’s a will, there’s a way” is surely true. These days. I do bark less but I just can’t wag. Ron KJ4FFG

My first two hf radios have been the Bitx, I used a bitx40 exclusively for a couple of months before upgrading to the ubitx last winter. Yes the ubitx is not a perfect rig. We use ours for digital and

Hi Klostreich, 9-volt batteries won't last very long with loads over about 15 or 20 milliamps. That is not practical for the power FETs used in those radios. Two or three in series would give you the

No idea but something must be wrong either on the ubitx, connections, wattmeter etc. You should see at least 10w on 7Mhz. On mine I see something like 14w on 7Mhz decreasing to less than 2w on 28mhz.

Hi UBITXers I just put together the UBITX and it puts out about 3watts or so on SSB on 7mgh. Nice clean wave form on SSB and CW and I've had a number of SSB QSOs. However, on CW output is only about