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Ditto, Evan. I'm constantly learning related and unrelated info here and hope no one is discouraged in posting their thoughts and results from their experiments. Personal gain from this is one of the

After watching the video in the first link below, I think this is a primo way to go. The video is excellent, in fact, at least in my opinion. However, this generates another question: If I install the

Good suggestion, Evan. I just called my son and he said he's too busy at the moment to go back and check but I forwarded your message to him to check this. I have heard that some super-duper toasters

Hi Arv, This is good information you supplied while I was slowly working on my last message. So, the Huff and Puff method may introduce a constantly varying low frequency phase shift. That makes

? [email protected]> wrote:

This is an clever way to use an AVR chip to stabilize a 10mhz oscillator without a pre-scalier. Just use the 10mhz oscillator as the main CPU clock. Here is a GPS stabilized frequency reference by

Jerry I suppose that in a very broad description one could say that H&P is a PLL. Just depends on how deep one wants to go into what the tiny gears are doing deep inside. Arv ? [email protected]>

Tom, wb6b Using H&P to "stabilize" a 10 MHz VFO or crystal oscillator with a low frequency clock derived for GPS or WWV sounds interesting. Way back when we were playing with H&P, I did something

Hi Mick, I received a V6.2 ?BITX about 6 weeks ago and confirm that my 'digital' connector looks like yours with the wires cut. You can use a small probe or small straight/minus screwdriver to push

Hello Evan You're becoming my mentor - very much appreciated. I assume then that the numbering of that plug starts at A-Zero one end (Black) though to A7 Purple at the other end. My encoder arrived

H&P is not a phase locked loop in the sense that we usually consider it. There is no "lock" situation involved. As Farhan mentioned, H&P continuously detects whether one edge of an HF cycle leads or

If you have a uBitx and wish to experiment with sine waves instead of square, perhaps add a low pass filter to each of the three Si5351 clocks. The VFO at CLK2 would need to select from multiple

Farhan It is possible to reverse the H&P design by dividing the VFO down to LF and letting it be synched with a very stable HF reference (WWVB or GPS or TCO). Result is the same when derived steering

Sold. 73 -- Jean-Fran?ois Ménard Jeff | VA2SS Envoyé à partir de mon appareil mobile. Sent from my mobile device.

There are lots of variants to doing a Huff and Puff. EMRFD shows a very basic example on pages 4.5 and 4.7. In this design, the frequency is constantly bouncing somewhere between two frequencies that

Hi, I have for sale my uBITx 6.0 full kit for sale. I purchased it last spring. I just assembled it to make sure it was working, then it is now collecting dust on the shelf since that time. I

Mick, I do not have a v6 kit, so not sure about the following: A7 is the Purple wire coming off of the Raduino digital connector to goes to the encoder.? In one picture that I have seen of the

Good afternoon all I have just installed the kit-projects AGC board and read in the instructions to connect to pin A7 for the S-meter. Please can someone confirm the location of pin A7? Is it the pin

Richard, The name of the group is BITX20, not uBITX.? It is really for homebrewing as well as the kits that came out of that effort.? Feel free to continue to post if you so choose.? We are all

Evan, again thank you I think this will be my last post on the subject as this is a uBITX group, not a Homebrew group..... I think a *simple* fix involves both hardware and software. Since I already