Here's to a free and independent India. Happy birthday. And thank you, Ashhar Farhan, for making this versatile platform available. Salute! Russ HinesJMS & Associates,

Hello Howard, Based on what you describe I suspect an issue with the I2C bus. Suggested tests would be either to a) Comment out the wire.xxxx call lines in the si5351 tab or b) Load my test program

ARV, >>Inductors are interesting in Spice simulations. Usually the amount of resistance in a couple feet of AWG-20 is so insignificant as to have any large effect on performance. I << There are

Ashhar, Just out of curiosity, do you have any new projects you are working on? Al, N8WQ

This is great news Allison, I offer to layout the boards and make the files obtanium ... Rahul VU3WJM

John: I did find a short between D3-D4-D5 under the connector to the uBitx main board. I don't know how that happened, since I didn't touch that connector doing the rework. Anyway, the

Carl - Check your Email.. I need your paypal info...

John: I added a print statement before and after the first i2c write and it is definitely the I2C that is hanging up, it doesn't get through the write statements. Great call! Now

Lawrence, I've replied to the email you sent earlier. Many thanks, Carl

One item to note... All the stitching, those are the vias fro top ground to bottom ground. I have a bin full of those relays and they are compact, inexpensive, and good at RF. Allison

Jack: Good idea! Would be nice to have a loop-back cable, set 1/2 I/Os to input and 1/2 to output. Cycle the pins and display to serial monitor. Reverse ins and outs and repeat. Haven't had good

All, Thoughts mostly as applied to making ubitx or bitx modular. From start good idea. Breaking it into modules allows one to solve issues as they arise like power amp isn't good enough build and

The MCU is the user interface only and as stated unless its doing DSP it cannot enhance the signal. Exactly, which is why I think we need a relatively powerful µC with good library support. With some

Henning, The magic frequency is over 60 mhz. At 58.1125 the half IF is ~29.06mhz or the point where the 2IF minus LO will be one loud birdie (RX and TX). It moves the current issue up but not out.

Here's some features I'd like to see in any new design that shouldn't cost much, but would make life/testing/experimentation easier: - Sockets for CPU boards on any new Raduino design. (Teensyduino

Interesting article/Youtube https://www.livescience.com/63337-lightning-space-plasma-whistler.html?utm_source=notification Earth and Planets Make Strange, Exquisite Noises | Video

Howard Might only need to flow-chart the section where it displays the Version Number and then hangs. I would start in that area with adding print statements that point to individual lines of code

I am assuming 99% of us already follow xkcd. For the 1% that do not... https://xkcd.com/2033/ -- www.bitxmap.com

Carl: Some very good ideas. I'm showing the Rev 2 JackAl board here, partly to show what we done, but also to show the mistakes we made along the way. (We're doing the Rev 4 board now.)

The idea of a "Modular uBITX" is interesting because with a full set of specs for each module it might be possible for different persons or groups to concentrate on one module, resulting in a