On the drawing in the video it shows the Raduino Pin #3 as +5vdc, but the main schematic it shows Raduino01 Jack#3 as blank and Jack#4 as +12vdc (no +5v on the Raduino01 jack). Do you know where I can

Evan thanks for responding Let see if I understand the procedure. I go into calibration mode, at this point the frequency counter is not reading anything. Now if I press the PTT switch, the

Bob, The values are stored when you press the putt switch. You then need to power cycle the radio/Nano (unplug the Nano from any attached USB connection). It should then save the new setting. Secret

Me too Reed. Also I eventually swapped back to your firmware. I really like how it is laid out on the main screen.

The easiest thing is to simply measure the actual frequency put out by the crystal, and then adjust the software to expect that frequency. In most of Ashers code you can find the presumed crystal

The frequency counter is a lab grade frequency counter and gets calibrated once a year by Tektronix. It has a 10X attenuation probe. I have a dummy load on the antenna connector and I put the

Steve, Glad it was a simple fix. The firmware will not allow you to change the TX frequency while transmitting. The reason it is in transmit mode is the pull-up resistor is missing on the digital

Scott, I would suggest that you start a new topic and not hijack Bob's topic for your problem. You will also need to provide more information about the AGC add on that you purchased, as there are

Bob, I have used a frequency counter to verify my uBITX, though it was already calibrated using WWV. You will need a way to connect the frequency counter to the uBITX. A small wire as an antenna may

It's working Evan ! Strange. New SD Cards are already formatted. Small sizes are FAT32, like my 16GB ones. BUT I just reformatted one of them and put the PD5DJ 4.3" version (Same as CEC) on the blank

Glen, I do not have either a v6 uBITX nor the Funtronics kit (though I just ordered one). The following is my interpretation of the diagram in the video and the schematics of the v6 uBITX/New

Hi Evan, Well, yes . . sort of. I bought 4 new 16GB SANDISK uSD Cards a few weeks ago. They were all formatted FAT32. On one I put the ubix_43.tft that's actually 2.4". Then the files marked as from

Steve, If I remember correctly, I had the Baud and Update message when the SD card was not formatted correctly. Are you using the same card as the one that transferred the file that worked? If not,

Hi Rick,Thanks for the info. I tried a few more times but no joy. Also tried a few other files but just got "incomapable with this LCD". I know there is a working Nextion 4.3 tft because I've seen

I'm glad to hear it was an easy fix :) Reed

With the PTT pressed! Shekar, Without modulation please measure the voltages on Q13/14/15 and lets seeif we find some clue. You can post here or whatsapp me its faster! Raj, vu2zap +919483843939

Can you check current load with ptt pressed and without talking pl?

Shekar, Without modulation please measure the voltages on Q13/14/15 and lets seeif we find some clue. You can post here or whatsapp me its faster! Raj, vu2zap +919483843939 whatsapp

Would this be a good alternative? https://www.rf-microwave.com/en/ndk/45s15bn/45-mhz-crystal-band-pass-filters-pair-4-poles/f-45m-m4/

Stephen using a 60 watt incandescent is not presenting a 50Ω dummy load and you are risking blowing up the pa mosfets. Build a proper dummy load with a few resistors., e.g. to get an