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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

"The more you complain the better the software will get", ha! He also mentioned that he wants comments in the github. I have a handful of small things that I'd like to see changed/modified. Guess

He mentions the zBitx and sBitx Hat. zBitx Here is a pic of the sBitx hat.. He also mentions the future of sBitx. * Adding FreeDV mode * Adding AM TX and RX * Adding NBFM TX and RX for repeaters,

I wasn't super happy with myself for putting the connector on the wrong side. It will clear the metal brackets, but it's kinda close. If you aren't happy with that, let me know. I ended up making

To add a bit of nuance.... If you run the radio as it is using only the sbitx software, no fan is needed. I have been playing with using JTDX with gridtracker, and the pi gets very hot. Only takes

When I first got my license back in the antiquity days of 2013,, the KX3 was pretty much the latest and greatest. I was able to get one and was marveled by what it could do. You could do so much with

I'm using the 20:1 attenuator connected with a bnc cable to the input port of the oscilloscope. No probe. The other side of the attenuator is connected to a tee (sbitx and dummy load to the other 2

Checkout Ashhar's presentation at FDIM 2024 https://www.youtube.com/watch?v=2MeFZb9Dxbg 73, JJ Visit my repo at https://github.com/drexjj for sBitx tools and software.

If you have the original probes then your readings will be accurate. Otherwise you will need to to calibrate. I have face this by mixing my various probes. Raj

Good information. Thank you!

Jeff the board came in yesterday and I can’t wait to get it installed! The components were unharmed in shipping. I read your note and couldn’t help but laugh out loud. There was a long wait and a

Hi Farhan, I used CW to make measurements. I used an old CRT oscilloscope with 100MHz bandwidth. The waveform was well defined on the scope (3÷4 cycle inside the screen). The bandwidth of the

Carlo, Which mode are you using? It is best to measure this in CW. You must also check the scope's bandwidth setting and the time base. [email protected]> wrote:

Thanks Evan. I just update to the latest version. Nothing changing... I will try with a ham wattmeter (that I must buy and cost the same of the sbitx)... Bye Carlo IS0HLX

I wasn’t able to attend FDIM, but I would be interested in getting an sbitx hat if any attendee has one they have changed their mind about using. I would be happy to pay shipping of course, and make

Carlo, The last thing to try would be to update the software.? I do not have any other suggestions, as this is a new first-time power-up. Maybe Ashhar Farhan or one of the other experts in the