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Evan, For SSB systems and CW it can be a direct meaurement of RF at the antenna. More signal greater audio at a given point in the audio chain before the volume control or any audio agc.? IF audio

Evean, ITs called RTpatch or RTkit to make a linux RT system.? It been around for a while and works when you need a deterministic system.? With that you can build a realtime kernel. I used to do PLC

Good morning, Many thanks for your work cdt

This is normal for startup as some packets go missing. As long as they they dont show up in volume when operating, you are good.

10/4/2022 update:? Initial full functionality checkin of all 4 apps. Going to refactor uBITXgeneratemodfile to follow design pattern of setters/getters used in uBITXapplymodfile. Believe this pattern

Displays in console on app startup: "Play PCM Write Error: Broken pipe? count = 5" "Loopback PCM Write Error: Broken pipe? count = 7"

Allison, I have seen systems with a fast loop based on an interrupt timer.? I believe this control system was on a UNIX-type system.? The system also had real-time interrupt service routines for the

Thanks Goody. I’m not a software or EE engineer (but I play one on TV…I do some dabbling https://www.instructables.com/Pool-Controller-Using-Raspberry-Pi-Arduino-and-Xbe/

I'll interrupt here and add this.... Before we can attack CW keying or many other software related issues the ability to TX and RX without failures is critical as its a hard stop on software work to

I've been down this road a few times as a development engineer.? That means I have been burnt a few times and know to look. The box has a really good finish and its durable (powder coat) that makes

Evan, That only works in a RTOS or loop constructed non os.? This is linux and loops can be constructed but they are interupted by process timer and system priority levels.? The system can suspend

The reason assuming wired correctly the 510s failed is the same as the irfz24s, transmitter oscillation.? you may have a bad relay K9 or U3 failure as well. Allison ------------------ Please use the

Butch, U3 in combination is to both switch the antenna to the recieve path AND isolate the transmitter output from the receiver during transmit. IF either is not there or not working right you either

Hi John, If it were me, I would get another microSD card, download the image from Ashhar Farhan's web page and see if that works.? It could be that the code specific to the RPi4 is corrupted, and the

You need to configure the wm8731 and the snd-aloop for sbitx to work on a fresh install. Follow the instructions in install.txt

Hi John, I haven't posted anything on your issue recently because I’m just out of ideas. A new SD card with a new OS on it would have been my suggestion, which you’ve done. The issue you’re

I have built both versions of the S-meter ?- my uBITX currently has the second Nano version fitted, but I also made the option using the LM-358 chip. Both work although you do need to add the

Evan: Sorry, I reply to the other message instead of this one. Thank you for the information and clarification. This and the following one were both beneficial. 73 Dave WD8AJQ Sent from my iPhoneSE

Ashhar, I hate to ask stupid questions but now that I think I understand what U3 is doing, why is it there at all ? simply connecting the RX relay side if C14 to the U3 pin 3 side of C4 and removing

Evan: Thank You for the info and clarification. 73 Dave WD8AJQ Sent from my iPhoneSE