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Hi, If you read the datasheet for the regulator it's warned about there: 8.1.2 Raising the Output Voltage Above the Input Voltage Because the output of the device does not sink current, forcing the

Hey all! I am having a rather strange drop in sensitivity on my V6 after carrying it up to the cabin.? The unit was well padded in a cardboard box riding in the cab of the truck so it wasn't bounced

Hello Eric, Could you please let us know the payment details for the order that was placed with us. As of now we dont have any pending orders and the delivery schedules are within a week. However have

Scott, Take it from PIN 1 of relay K1 and PIN 3 is RX (12v) Raj

All: I have an article coming out in (I think) the June issue of CQ that talks a little bit about software. The article is an experiment to see if there is any interest in a quarterly column about

HI All, When I got my Bitx40 a few years ago, it did not come with the raduino. Tried to buy one from HFSignals, but nothing delivered since February. Does anybody else make a replacement or clone?

Evan: I think I will definitely use a heatsink for the 7805. Thank you for your help, once again. Jerry, Thanks, 73 Robert, AG6LK > >

Good information, if you know programming. I am just a dabbler and have limited skills in this area. Although, thanks for the info. Barry K3bo

Is there a simple location to grab +5 to +12V when the uBITX (v.6) enters transmit mode?? ? ?I saw a? method from N6QW but was hoping for something simpler. Thanks!

Is your uBITX a ver-3, ver-4, ver-5, or ver-6? _._

John Prepare for adventure. Here i have a v4, our club has lots of tips if you search for CCARC ubitx. First build to instructions. Many of us used Amateurradiokits.in cases that are very very nice,

Look at your kit to see which version you have. It's most likely to be version 3 if you ordered it in 2018. Although there have been improvements in the newer revisions, the older ones are still quite

Hi John: There should be a version number on the kit which will direct your search for board modifications. Also, check the ubitx.net site, as that has a lot of good information, too. Jack, W8TEE

Hi I got away from kit building for a while.? I found a ubitx kit ordered in 2018.? I know there have been some changes. What should I know / do before starting this kit? Circuit changes? Add-ons?

Evan, I have to consider that I work without a Nextion screen and without a rotary encoder. So the noise does not come from there. It’s probably in the design of the PCB.. it' s Homebrew. I agree

Gerard, I would suggest that you move the diode to the power input of the regulator.? That would also help in dropping the 12volts down by .6olts.? A small help in the power dissipation of the 5volt

Gerard, I have read in one of the threads that installing a filter and capacitor on the power feed to the Nextion screen (assuming that you are using a Nextion) helps in reducing the "click".? It is

Hello, Now I’m asking for your help. I have on my own homebrew? Ubitx, a beep "tic tac"? on my construction. This comes from the Arduino’s SDA and SCL signals that communicate with the SI5351

Jack, It was a quick answer We can of course compensate the loss due to the diode There are lots of schematics on the net Example: Electronique - Theorie - Regulateurs de tension (sonelec-musique.com)

There's no voltage drop across the diode? Jack, W8TEE