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https://www.hfsignals.com/wp-content/uploads/2019/12/ubitxv6.pdf Looks like ring is PTT, tip is microphone audio.

Very nice schematic, easy to read! Thanks Charu. * Your Logic input Vi pin 6 / U4 FST3157 is DC isolated from CLK2 and is DC biased by RV1. I would have a direct Vi input from U3 SI5351 with 3.3V

I can't remember, and I can't seem to find it anywhere, but with the uBitX v.6 microphone plug, is it tip audio/ring PTT, or tip PTT/ring audio? -- Tom Sevart N2UHC St. Paul, KS

You can disable wifi completely by doing it in the /boot/config.tx file. just edit and add "dtoverlay=pi3-disable-wifi" to the end and reboot. You can do the command ifconfig before and after to see

If this is caused by an audio device receiving from the wifi, is there a way to turn off the wifi to stop this? I tried to turn off the wifi in the menu that has our router listed but it doesn’t

Don't see any reason it would not receive ok down there. though you may need to hack the RPi software some. The stock sBitx is not appropriate for transmitting on 630 meters. There is no transmit low

Still waiting for my shipping notification. I've got one coming without the display and Pi. wrote:

I use an emtech zm-2 tuner and also a ldg z100 tuner. both seem to work 100%. Im an odd ball,. I like just a little bit of swr on my antennas. 1:5 seems to get out better where i live.I also use rg6u

Niels, A quick reminder to readjust the bias whenever you replace the finals. 73 Evan AC9TU

THIS IS FOR HUMOR AND SMILES!!!!! Enjoy, 73 David ac9xh I came across this on another website .it was originally published in QST magazine 1967:

Ashhar and group, is there a manual or something resembling a spec sheet on the sBitx available anywhere? I am trying to figure out if it will operate down below the AM Broadcast band, there is a lot

niels,If you have a dummy load, try loading into that first to see if anything else is wrong before hooking up your antenna? after re-installing finals and checking surrounding components. Also, if

I’m having the same sounds… anywhere from 4 to 8 sounds then a several second pause, then starts again. Changing audio level makes no difference. I’ve never tried transmitting… just listened

Actually , Farhan had forgotten to update the Schematic on his GithHub page, as a result of which I was searching for a route from the Antenna Connector to the RF port he used. But some pledger

got #26!!!!? ?You beat me!!! but i still feel HONORED.? ?Gotta find a power connector and wire it all up.? Should have a logitech mouse/keyboard wireless in the car.? ?Tons of MEETING this

Just got the LRS-150-12 to run it with.? Now all I need is the sBit so I can run.? Waiting for it to ship "sans Pi" as I already have the Pi. Gerry Sherman Sent by the Thunderbird

Niels - that sound like a full wave.? I understand that if an antenna is a multiple of a half wave it can be hard to tune.? My suggestion: switch to a manual tuner & use an analyzer (Antuino) to get

Hi Charu Looking forward to see your design, must be very interesting by rolling your own. * What’s ?the catch between the schematic from GitHub (1rst mixer to antenna via LPF) and the updated from

I did try that, it was confusing. Should we put it on tap? The function decoder has a pushbutton that is not used.

There is one knob I really miss on the sBitx, An easy accessible volume control. Idea: Fallback for the function encoder when not not called for it could be volume control. Fallback time f.ex. 15-20