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Here is my cigar-box uBitx with a wooden dowel Mic using the kit electret mix element and the Microsoft. Tony, KB9A

Using a section of pen for Mic and PTT switch installation. 2018-04-20 4:56 GMT+08:00 Matthew S <Rigamurow@...>:

Good idea Nick. On the Atmel, max I2C speed is 400Khz, but a lot of devices do not like this "hi-speed" and you need to run them slower. Right now I have my bus running at 200Khz and see no delay on

Hi Ron ? Feilding here. Not building uBitx - dead-ended with Bitx-40, QTH with horrendous QRM, and retiree budget stretched with care of 2 grandsons. I contribute my experience and 50+years as a

Yeah Ian did… and he has a video on Youtube using it… Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ Owner - Operator Big Signal Ranch – K9ZC Staunton,

I have used these chips on many projects and used them to drive led displays, but for this application,? given the slower response of the I2C serial bus, I would stick with the given direct I/O

Actually, I would prefer to rewind the transformer with a center tap, and eliminate the chokes, feeding the DC to the center tap. Z for L8, L9 should be >> then the output impedance which looks like

Mine came today! 45 hours from India to Pittsburgh!

I know it's there somewhere!!

Looks like you got a Raduino with the right angle pins along the right side suitable for plugging into a uBitx main board. Raduinos for the Bitx40 that I have seen thus far had only a 5 pin

Thank you Gary. Regards. Max K 4 O D S. I've Never Lost the Wonder. Antique Electronics Site: <http://www.angelfire.com/electronic/funwithtubes/>

Literally just finished my curmudgeon. Thanks to K5ESS and N1AW

I'm wiring up my newly unboxed BitX40 and the back of my Raduino (adruino uno) does not look like the website?http://www.hfsignals.com/index.php/2017/11/23/wiring-up-the-bitx40/ I've attached two

I managed to get a few free samples of the PCF8574N from TI. It is an I/O expander I2C - 8bits in a 16DIP package. It is basically the chip used on the I2C LCD piggyback boards. I keep you posted.

Ron, A quick glance at BITXmap.com ( http://BITXmap.com ) shows there are more ZLs than you might think.? Although it looks like Christchurch would make you the first from the South Island.

The rig ships with a perfectly functional sketch installed.? I recommend you get it all put together and fully tested before trying any of the other sketches or modifications floating around.

I believe you are transmitting an audio tone through a SSB transmitter. If your freq dial is set to 7.074.000 and you are sending a 1khz audio tone you will actually be transmitting on 7.075.000 (i.e.

Never one to take the easy road, I thought I'd share my progress so far with building up my uBitx. I call it my "Franken-uBitx" because it is made up from a lot of different parts I had laying

Hello Dex, There doesn't seem to be many ZLs building the uBitx so wonder if we could link up? I am in Christchurch 03 3389021 Cheers Ron ZL3VX

What do you know! Mine is uglier than yours.