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I've got my uBitx apart and have just received a ND6T agc board throughole with the VA3NOI board layout I think. I have all the parts to populate this, but are there instructions as to how to install

Hi, I've been following these replies with interest. Lots of practical information on what the trade-offs are vs cost of the rf-explorer vs a full spectrum analyzer. Particularly the signal levels to

Hi do you have the files for the RF pre-am and the agc? Hard to see the pic there do the files specify exactly where the connections go to the main board? Thanks

Tried that it's hard to actually even record my volume is so soft to start out with.? But from what I can tell it's seems to be tuned about correct.

Sorry. typo in the prior email: Once the BFO is aligned, then can go back to the main VFO calibration, though I believe that if you truly zero beat the signal, adjusting the BFO should *NOT* impact

There is a free program for Windows (link attached), that is an audio spectrum analyzer using a mic input. Process is to tune to an open channel and view the spectrum. The spectrum should go from

Receive frequency seems perfect though so if I change it that would impact my receive frequency also right?? BFO sounds spot on for the receive.

Sounds like you BFO is off.

All, Please ignore my previous email. I did not realize it was a Bitx40 rig. I do not have any experience with that board. Next time I should read the header BEFORE I respond. Sorry. Evan AC9TU

Christopher, Off chance, have you checked the output of the 5vdc regulator on the Raduino board? If the regulator is toast, then you could be wiping out the nanos on over voltage (an known issue for

It may also be a bootloader issue. Recent Nano's?come with?a newer bootloader: https://forum.digikey.com/t/january-2018-arduino-nano-bootloader-update/1194 73 Allard PE1NWL

Pete, Andy is correct, you need a more recent version of the KD8CEC software as the S-meter appeared in version 1.08 of his releases. 73, John (VK2ETA)

Now, that brings up another idea. Some of the computer/laptop power supplies have a 12V line and also a 18/19V line. But it the two power lines are separated and the radio used the 12V line, the amp

I agree with the other posters that it's a useful instrument, if you know its limitations. Using the RF Explorer, I was able to confirm that replacing the relays on my ubitx rev 4 board cleaned up all

Laptop switching power supplies are cheap, often available in thrift stores for pennies on the dollar, and can power the PA section. 19 V is common. A cheap switch mode 12 V wall wart can handle the

As Bob suggests, a simple old school wallwart consisting of a transformer and a rectifier is generally not suitable for powering electronics such as an amateur transceiver. The open circuit voltage

One comment in this user's comment makes me remember something that no doubt others know but it may still be useful for someone who has not heard it before. Some people pick up a wall wart and see

I noticed today something else interesting. Even though I can get the same receive 1khz zone on both my yaesu and ubitx on the same frequency.? When I transmit from ubitx to my nearby rig the Yaesu

When I connect a serial monitor to the arduino, I don't get any data out of it.?? I've also tried to hook the arduino back up to my computer to burn the new v1.28.1 code to it and I have the exact

Thanks? John,Glen and Gary for info on the front panel boards.? Just finished wiring a kit I received a week ago but having the boards makes a much cleaner radio.? I just ordered one also along