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Justin, The fact that you are away from AC power lines (I am assuming that is the reason for the solar panels) would mean that any tests that rely on AC hum may not work.? The loud "squeal" when you

Jerry, I would go to the Windows Device Manager (right-click on the Windows Start Icone) and verify that the CH340 driver is connected and the com port assigned.? It should show up under Ports (Com &

At least on Linux, this sometimes happens to me. No real solution - just turn on the arduino and upload the firmware fast (between 1 to 3s). It works for me. Rafael V6.

Are you using the Nano as it appears you have multiple hardware solutions? "I did this with the teensy4.1 Arduino clone. I don't know how it works with the Nano firmware, but imagine it's similar. -

Justin, I believe that Ashhar Farhan is referring to D5 in the product detector stage.? That goes through the preamp Q70. Where did you tap into the audio chain to get the signal for the AGC?? Could

Evan - I have built the circuit for the S-meter but it is about 300 miles away!? I woukd have thought nothing about the S level response if the volume hadn't dropped at the same time.? It used to be

Windows 10. - Jerry

Jerry, Which OS do you have on your PC? 73 Evan AC9TU

Ashhar - Touching pin 2 of the LM366 does nothing, touching pin 3 produces a bit of a squeal but not overly loud.? I'm not sure which is the detector diode, could you give me a part callout? 73,

Justin, I worked on a v6 for a friend and found that the S meter signal off of the ND6T design varied with fast and slow response settings, with no signal on-off.? I ultimately went to a separate

All, I am trying to upload the "reedbn" alternate firmware to my ubitx V6. After downloading it from github, loading it into the Arduino IDE and successfully compiling it, the upload fails with

Ashhar -?Thanks for the suggestions, I will try them later today and report the results.? I hadn't considered the pot due to it's ability to vary the volume coupled with the lack of S-meter reading.

How about doing what is as done in many Yaesu and Icom transceivers put a 7808 in series with the 7805 that will set the voltage change at 4 volts then 3 volts which will make the regulators run

Thanks, Dennis...the pressure's on!! Jack, W8TEE

Hi I have a lot of regards about replacing the 7805 by a switching module. If the 7805 is damaged, little or no output voltage would be present, but if the active switch a switching module is damaged,

Hi! Based on assumptions on how many uBitX rigs that have been reprogrammed and how many of these that had their radiunos powered solely by USB 5v at the time, I'd say that as long as you don't try to

Jack, your upcoming article was enough for me to go ahead subscribe to the digital edition of CQ.

Hi Justin, Can you provide a little more detail on the AGC used?? Also, what happens when you turn off the AGC? As to S readings, at best they are relative and very unique to any given radio.? There

Look like he referred about early version of SMD bitx40 with analog VFO. wrote:

If you can make contacts, the. Digital board, the RF coils and crystal filter etc are all working perfectly. I would think the volume control is busted. What happens if you touch the detector diode