Ulm, You can load the KD8CEC firmware, use KD8CMC Memory Manager to read the calibration values and save them to a file. Then reload the original firmware. that is the only way to savdd we the origina

Hi John, As Gary stated the stock software does not have a tuning step size adjustment. The KD8CEC firmware does, and it is free. The CEC firmware works with the Nextion screen as well as the stock sc

Ashok, Try the method given in this manual for the N8ME software. There is a section in the CFG menu for frequency and BFO calibration on page 8. https://groups.io/g/BITX20/files/uBITX%206%20N8ME/N8ME

#v6 #ubitxv6 #calibration

Hi Brendon, To answer your questions: The center pin of the power connector is the positive (+) lead. The barrel is the negative one. 1 - When looking at the front of the uBitx, the left-most jack is

Hi John, The v4, v5, and v6 boards have M3 holes. I do not have a v3, so can not measure the holes on that board. 73 Evan AC9TU

Tim, Yes, on the coax. Where to place the ferrite on the coax depends on whether you have a tuner connected to the antenna. Then the ferrite needs to be after the tuner. If it is a resonate end-fed, I

Tim, I had that issue with my v4 uBitx connected to an Off Center Fed Dipole (OCFD). The problem is RF getting into the Nano. It is made worse by an SWR mismatch but is still there if there is any com

Hi Ashok, I use the N8ME with the VU3GAP mods. It is the one that I recommend for the v6 uBitx. https://groups.io/g/BITX20/files/uBITX_6_N8ME_2_VU3GAO_Mods.zip As Gary said, multiple updates can be us

Michael, Other than buying an aluminum case and doing the metal work to cut out the front and back faceplates, no actual suggestions on the case. I prefer metal for the RF shielding as the uBITX is no

Ulf, Can you please give us a little more information on the status before you made the screen change, which files you loaded into the Nano, and if you replaced the Nano before the upgrade? The times

Matt, Congratulations! 73 Evan AC9TU

#v3 #ubitx

Matt, Glad to hear you found the problem. Here is a link to a video by Ashhar Farhan on calibrating and setting the BFO. It is for the v6 as the instructions are using the v6 controls. The same basic

#v3 #ubitx

On Thu, Jun 23, 2022 at 06:48 AM, Evan Hand wrote: Matt, First, a question: did you install the pull-up resistor for the KEYER line? https://www.hfsignals.com/index.php/ubitx-wire-up/ Once the uBitx g

#v3 #ubitx

I believe the files with .btx are the data files from the KD8CEC Memory Manager. That only works with the KD8CEC software, not the stock or N8ME varients. It is one of the HUGE advantages of the KD8CE

Hi BudR, I am not a CW operator, so take the following with that in mind. I have read on this list server that the following software (firmware) update for the v6 uBitx solves the keying issues, and I

#v6

Hi David, to answer your questions: 1 Other than the screen not fitting the case, the answer is yes, KD8CEC has versions that work with both v5 and v6 boards. The graphic display provided with the v6

#v6

Dennis, Rereading my post, it may not have been clear on how the 12volts get to the Raduino board, it is coming in on pins 15 and 16 of the header between the Raduino and the large motherboard. The pi

Dennis, The display gets its power from the 5volt regulator on the Raduino board. That is powered from the 12volts through pins 15 and 16 on the main display board. I would verify the in and out volta

Dave, Did you verify that the trace between the two power connections under the header was cut? If not, then the higher voltage would be sent to the mainboard and that could damage multiple components

Vic, Here is an inexpensive shielded RF probe kit. I have built and tested it, and it works well. https://www.qrpkits.com/rfprobe.html A fellow builder and I are doing a club presentation on modern te