It relates to the use of the uBITX as a part of the armature radio hobby, and what can happen here can happen elsewhere. (BTW, I do not live in California, so am not directly impacted, YET) It seems t

I agree with Jack that as long as the topic is clear, it is easy enough to ignore. In this case I view it as a reminder that we need to constantly prove our worth for not just the space to install gea

I would suspect that KT3 has a bad contact in that it is switching, but one of the two are not connecting causing an open line to the antenna. If this is true, I would be sure to fix it before doing a

#ubitx-help

markix88, If you are using the KD8CEC memory manager, then you need to read the Nano, decode, make changes and then encode before you write the values to the Nano again. Then be sure to disconnect the

II do not know of a way to set it with out some test equipment, at least a dvm that can measure the current to the PA section. Using either a current meter on the PA input, or an RF power meter on fee

#ubitx

Most Laptops do not have an earth ground. You do have the shield of the USB port, however that would not necessarily ground for AC interference. It was just a suggestion for a possible cause for the h

#teensy #ubitx

I believe that there is a grounding issue, though not a "loop". When you have only the Teensy connected, there is not a reference to ground on the computer, so you get the hum. This would be irrespect

#teensy #ubitx

It has been a while since I did the calibration of my v5, so please check and record changes as they are made. 1 - You will need a dummy load for the calibration of the stock v5 as it transmits a 10MH

Martin, Based on your question, I will assume that you are not using the .hex files and hex loader to change the firmware in the new Nano. In order to use the source code and make changes, you will ne

That is one of the version listed in the CEC zip file. It is a parallel interface, with 16 chacaters, so if my memory is working, then the version should end in 16p. http://www.hamskey.com/2018/04/var

To answer your second question first, yes you can use a second Nano to program and keep the first as originally received. There are issues that need to be taken into consideration. 1 - The calibration

Curt, I agree with your assessment. The harmonics are the larger issue, and need to be addressed. Changing to the shielded inductors before and after the 45 MHz crystal worked for some, and is a much

As far as I know all of the Nanos use the miniUSB cable as apposed to the microUSB cable. When ordering one just specify "miniUSB" 73 Evan AC9TU

#calibration

Here is the explanation of the v5 spurs and the v5 solution. Not that in this thread, Ashhar has not yet gone to the BFR93W devices for the 45 MHz IF. https://groups.io/g/BITX20/topic/28982939#63695 I

Vince, There are 2 versions of the CEC software for each of the display types. The difference is one uses a seperate I2C connected Nano to add functionality. The other uses the spare input pin on the

Just to confirm that you did connect the diode, cap and resistor per the KD8CEC directions to measure the audio output at the high connection of the volume control? FWIW 73 Evan AC9TU

I went this route, and does allow you to go back, however transferring to the new Nano, you lose the calibration data that is stored in the eeprom on the Nano. You will need to recalibrate when starti

Sorry to nit pick, however I do not know where to get 680nF inductors, only 680nH inductors. I assuming that you do mean the 680 nanoHenry inductors that were suggested by Raj, vu2zap in this thread:

#parts

I have not yet done the mod, however KD8CEC at Hamskey.com has used the I2C line to link in second displays and Nano's for increased functionality. To me that would imply that you can use the link to

#ubitx

I went back and checked the QRP-Labs dummy load. The connection is a filtered power indication. This may not work for frequency counters, as the filter will lower the signal. The small wire near the d

#calibration