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The uBITX was designed to use the pre-existing Raduino board. My opinion on a fresh start would be to put the Si5351A directly on the uBITX board, so only the I2C digital pins would need to be routed.

Buddy: There are some very interesting filters available in software where you can not only set the "center" frequency, but also the edges where the skirt "knees" are located. When I'm listening to

?man, my hat is off to you getting ANYTHING done with such impediments! More power to you!!!! If there isn't any statc---there's not much propagation

The microphone is a Model T-32 made by Kellogg Company for military communications.? It was sometimes used with the English T-1154 transmitter in WW2 Lancaster bombers.? Yes, they were used in many

Hey Gordon, Agreed about the super duper narrow filters. With all of the ways to crank down the bandwidth and peak the audio and reduce the noise and what not that are on my KX3, I rarely use much of

The uBitx works well enough as a CW rig out of the box if you have clean enough key contacts. Here's an old post regarding possible enhancements: ? ??/g/BITX20/message/36947 The

?I actually sorta like a wider bandwidth, unless I have a really interfering signal. A couple decades ago I remember actually building a LC audio filter --- toroids & capacitors and maybe even a

I listened between 7 and 7:20, and heard some signals, but nothing out of the noise. i called CQ Mico Bit X several times. Thought I heard a response, but Noise level is high here on the Border line,

A while ago I built a 4SQRP group HiPerMite CW filter in a mint tin to put between my headphones/speaker and my receivers.? There are others out there, but this one is a proven performer and I'm very

Ehhh! Listening to cw with a 2.someKHz filter is good for you! It will hone your cw listening skills and let you learn to pick the right signal out :-) In all seriousness, Gordon’s suggestion of

I doubt there's any non-volatile memory on the RPi other than the SD card, as that involves more process steps when building a CPU chip. Here's an 8 Gbyte SD card for

Just add an audio filter to achieve whatever bandwidth you prefer would be my suggestion

I've heard that the ubitx doesn't work very well for CW due to being too wide in the receiving end. How are some of you correcting this? Particularly, how can someone who can handle a soldering iron

Jack, I am looking forward to the unveiling. 73, Kevin VK3DAP / ZL2DAP

Doug: Good point, as I think the op sys and many other files are stored on the SD card. Jack, W8TEE

While this has no bearing in the RPI vs Teensy discussion as it applies to both and is a further diversion from the original subject, one thing I am guilty of when throwing around the virtues of a $5

I've got a Teensy 3.2, it looks very promising. The 3.6 has floating point, which would make porting SDR libraries much easier. The RPi's run linux with X-Windows, many popular SDR programs have

I too run WeeWx on a raspberry pi running raspian linux. Works fine! I've modified it give me 24 hour rain and to give me yesterday's high temp. Congrats! tim ab0wr "w7hd.rh" <w7hd.rh@...>

Hi Chris, Just for your info, my μBITx, as delivered, was -75 Hz off. Calibrated it and now it is +/- 3Hz. My IC-7300, after similar calibration, is less than +/- 1 Hz. Lets say, half an order of

I am putting my radio together and almost to the point of needing your wiring diagram.? Your colored wires make it look so easy and less confusing.? Fantastic work.? Thank you.? I have 1