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I’ve been told I have to sell a radio before I buy another one, so I’m selling my SBITX V2 with Pi4. ?I traded a TenTec for this rig last fall and have used it on CW and FT8, as well as PSK31. I

No, this is not a v4. You can learn about it here.. https://www.youtube.com/watch?v=2MeFZb9Dxbg -JJ

Hey, what is this thing people are talking about? Is this a new sBitx, maybe version 4?

Jens, The warranty is more than most "kit" suppliers offer.? Also, it does not hurt to contact the supplier to see if they can do anything.? I have read that new radios have been sent in exchange

The error was related to the cheap attenuator that didn't work correctly. Without attenuator the reading from embedded meter and oscilloscope was inside tolerance with bridge parameter set to 100.

Note: The fully assembled version has a 30-day warranty on parts. Try contacting HFSignals to see what they can do to help resolve the issue. 73 Evan AC9TU

Of course, it happens with a development that it doesn't work out the way we first imagined. Such is life, there is no first time. There are things that will only be really useful for the third

Scotty, the idea is good, but as you can see in the software version of the program, there is no one who would implement all this. For different reasons: those who could do it don't have free time for

Just wondering, are you going by the silkscreened markings on the board for voltage polarity? I think I heard somewhere that some of them in the past were labeled wrong? Maybe a different radio,

Although a hardware solution is definitely a valid option, being a software defined radio, I would guess that a setup option giving the opportunity to tell it that you use a tuner, adding a tune soft

Aaron, If you still want to pursue the stock regulator, I suggest installing the Dupont header pins and using a Dupont wire jumper to connect to the pins.? Leave the power on the input and adjust

Aaron, You may have a bad batch of regulators.? Based on your experience and other posts in this group I would go with a fixed regulator.? Here is a post with

Ok this is so darn ridiculous that it isn't even funny anymore. I'm really starting to lose hope here. I burned up 20 of these voltage regulators. Or I found 20 steps closer to stepping from this

No. It has software noise limiting.? Noise blanker only work for pulse noise and need to act on the signal before the crystal filter stretched the pulse. -- Allison ------------------ Please use

Limiting current? only works if you not seeing voltage spikes. However when tuning like that you will see voltage spikes from relays when they transition from open to closed. In that condition the

Carlo, That could very well be the problem.? I don't know the frequency response of your attenuator.? But, a general rule of thumb for an analog measurement is that your bandwidth needs to be 3x

tnx everyone, I found one that works.? Don w8ptb

does the v3 have a noise blanker??? tnx Don w8ptb

Take a look in the raw data read from the ATTiny85 over I2C and check if it makes sense (more power / higher readings, for example), if yes, it is just a matter of software calibration. - Rafael

So I cooked a set of finals recently with no obvious reason why.? Most of time my radio uses my raingutters as the antenna, which means I'm using a 9:1 unun with my ATU100 tuner.? When I switch