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For the CW operators here ... have you had any problems with the sBitx CW keyer? The timing seems off for me when keying at higher speeds, and the TX isn't quite right even using an external keyer. I took a couple of videos showing what I mean: Using an external keyer at 25 wpm, the dits are much more staccato than they should be and sometimes entirely cut off. The TX is bad enough that the RBN will not pick up my call when using the external keyer: https://youtu.be/GHbw9GroKAU Using the sBitx internal keyer at 25 wpm, there are many keying mistakes introduced by the software, for example when keying the word "POTA", which is a word many of us will be keying of course: https://youtu.be/dtnPlcLXmdQ Keying using a small keyboard or a save message seems to work fine, so that's good :) I noticed the code polls the GPIO associated with the key only about 10-20 times per second, which I think is much too slow for faster keying, so I was thinking about rewriting it to use GPIO interrupts to change the CW flags instead of repeatedly polling the GPIO. Does anyone have thoughts on this as a possible approach? Thanks, Steve W4SGN

Thank you so much!

Hello everyone here, I have been using my uBitx V6 exclusively in CW mode for quite some time now. Recently, a what seems to be "auto reset" occurs during transmission the set then goes down completely and then starts up again happily. I have been searching like crazy for the past few months but I cannot find the cause.I In the meantime, I have disabled the auto reset of the raduino, but that does not help either. In the meantime, I do not know anymore, perhaps someone here has an idea? I would be very grateful best 73es pieter (oe6paf)

Hello. I created a pre-compiled version of sBitx on 64 Bit for the Raspberry Pi4 for those who are interested. https://github.com/drexjj/sbitx/releases/tag/sBitx-v3.02-64-Bit Please go ahead and test it, sharing your thoughts afterward. Consider this a beta version, pending improvements based on the feedback I receive.. I've included sBITX Toolbox as well as other ham radio apps. It has been tested on both a 2GB Pi and 4GB Pi without issues. The download is designed to fit a 32GB SD Card or USB storage device. -JJ

Howdy, Long shot, probably, but wondering if anyone has a Z- or SBitX that is either online or can be put online at some prearranged time? Essentially, I’d really like to see how usable the web interface is with either a Mac or Windows screen reader, for use until we can somehow get a talking local interface. Likely as not I’ll get one or the other of ‘em to play with sometime this year. Give me a good excuse to try and learn something useful and maybe scratch that building itch. ... -- Buddy Brannan, KB5ELV, WRVB670 - Erie, PA Email: buddy@... Mobile: (814) 431-0962

After a month of perfect operation in FT8 mode, my sBitx v3 has stopped producing the output RF signal. I hoped it might be a software issue, like described here: https://github.com/drexjj/sbitx/wiki/No-Power-Output . Unfortunately, no correction in the software configuration restores the correct operation. The status of my radio is as follows: Reception works perfectly. The malfunction didn’t affect the receiver. When I start transmitting in CW mode, the current consumption increases from 0.35A to 1.05A at DRIVE=100 or 0.84A at DRIVE=50. The peak-to-peak voltage at 14.068 MHz is ca. 11V for DRIVE=100 and 272 mV for DRIVE=50 (measured with 50 Ohm 40dB attenuator as a dummy load, and multiplied by 100) The sBitx meter displays 0W and SWR=1.0 When working, the radio was used with the antenna matched via ATU-10-0A tuner with SWR up to 2. The symptoms suggest that I have fried the transistors in the final stage due to too intensive usage in an FT8 mode. Am I right? Should I pair the replacement IRF510N transistors according to their threshold voltage when replacing them? Is it possible to use IRF520 (with higher maximum ID) instead of IRF510? Thank you, Wojtek - SP5DAA