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Hajo -- Did you see the question that Ashhar posed? Have you answered that yet? I can give you more pointers once you are able to answer questions. 73 Gordon KX4Z

Can't anyone help me?

As long as there are other signals present, you don't need an accurate clock. Just use a sync button in the gap between transmissions.

Hi Ashhar and Michael, I started another very simple prototype (now with just two source .c/.h, sbitx_core and sbitx_i2c) which the first goals are expose API for the I2C and GPIO controls (Si5351,

Amazing design details. Thanks! Ashhar’s diode switching is much more elegant I was quite surprised used Mika insulators and got away with it!

Do you want to write on a topic? You don't have to register to read it. The writing is done by the admin. -- Gyula HA3HZ

Hi Joel, If you want to try v3 like Evan did on his modified DE, you can easily do that. It is described in one of the messages of ' v3 software, alpha is here (

How could I register to sbitx.net? 73 Pierre FK8IH

Hi Gyula, I kind of figured that and already ordered me 10 of them, I can install them on both my DE and V2. I really look forward to the V3 software next. Joel N6ALT

Joel, I bought CDSOD323-T03C diodes in connection with building another sdr. The Minimum Breakdown Voltage of this diode is 4.0V. As Ashhar recommended in message #106236, this is just right for the

Aaron, I think those cheap switchers were designed primarily to produce RF noise, and secondarily to produce power. For a short while… Jack, N6LN

We use the DS3231, which is as accurate as possible with quartz crystal. There are 2.6 million seconds in a month. If the clock drift is even 1 pulse per million, we are still going to be off by 2.6

Pierre, The new production run will be v3. We expect the boards anytime soon, Diwali is a huge deal in India and our pick and place guy was shutdown for a week! We will first start with v3 boards

What about one like this? https://www.amazon.com/gp/product/B07TVSFC15/ref=ewc_pr_img_1?smid=A2QEP0IMOO32F1&th=1 -- '72 Aaron K5ATG ( http://k5atg.com )

So FT8 has to be really accurate to work like it should and the sBitx V2 have the RTC in it and I am guessing for this reason. I have gotten a couple of emails from people saying the time is off by 1

Do I understand well? I do not yet own a sBitx but I'am very much interested in this development (using currently mainly a Hermes Lite 2 and a QDX Hi-Band). If I want to use a sBitx I must buy a V2,

Joel, I would highly recommend it. The maximum gate voltage of the IRFZ24N is half that of the IRF510s and it is more prone to breakdown. - f wrote:

An example of mosfet high power for 2009 by W6JL the "89 cent special" as an entry into the ARRL homebrew challenge, Worth a read as an example of a well documented

The only thing I would worry about with that power supply is, it is a switch mode supply and they tend to put out a lot of hash on the HF frequencies. Joel N6ALT

Hi I have been very happy with my ubitx v6.1 and i am using a yaesu power supply with 25 amps but i was thinking about a small power supply that would be more portable. I bought the 3 amp version of