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Don't do that. Trace it from the other end. S

Check the resistance from the R15 - C17 junction to ground. It looks like there is either a short on the board or you have the ADE-1 installed incorrectly. If you have a short, pull C17 and recheck.

On another reading of this, I had the same issue. I moved to using the function button in the 1.0.7 code, and removed the "traditional" cal button. Now 1 button does it all, after you learn how,

Maybe just placing a cap of 10-100nF across the switch would help? 73, Allard PE1NWL

I love the use case Gil. I would think the clansman would be better. I gave up trying to use mine as i had a lot of difficulty find a matching connector. Did you take the connector off? John

I'm testing a new bitx3c build.? When I apply 12v R15 and ADE-1ASK mixer gets extremely hot.? I removed Q7 and R11 and it still gets very hot.??? This leaves only the ADE-1ASK in the circuit.? I

Use a stiff 12V supply to start. I have not had good success with anything less than 2A. Linear if you have it. My BitX40/v1.07 works FB. Larry KB3CUF

Ok it seems strange to me but whenever I have the cal function in my code when I hit ptt to TX it goes to calibrate and then save. ?I have all wires with a ground wrapped around connected from 1 end

Pavel, I haven't tried coding for the Si5351, you could be right. ?However, on page 3 of AN619: 3.2. Feedback Multisynth Divider Equations ? ? ? ?fvco = fxtal * (a * b/c) where ? ?a+b/c ?

Hi Jerry, the 600 to 900 Mhz are suggested for the 25 to 27 Mhz range. There is a multiplier constraint that when you calculate it for 25 Mhz can't reach the 900 Mhz hardcoded in my lib; that makes

Though the Etherkit breakout board with an Si5351A has the option for a 25mhz TCXO, so it is driving an external clock into what SiLabs says is a 25-27mhz crystal oscillator. ?The C part allows you

I think I must have the "kids" hot glue system as it delivered "not too hot" glue which was encouraging until I realized the viscosity was very low. As a consequence have glue within the cap but not

According to AN619, the VCO operates between 600 and 900 MHz, regardless of the reference clock or crystal we provide. ?PLLA and PLLB have dividers appropriate for any reference clock between 10mhz

Many thanks for the explanation Jerry, very complete reference for my goal. That's why I will make the Max value of the PLL VCO of the lib dependent on the xtal you use, I found a few 26.134 Mhz

Thanks Pavel. fascinating. Maybe the two bits is linked to an attenuator ? higher the number lesser the output. In such a chip an attenuator makes more sense in design! Raj

All Raduinos built by hfsigs have a 25mhz crystal: ?http://www.hfsigs.com/bitx40v3_circuit.html ( http://www.hfsigs.com/bitx40v3_circuit.html ) Some people are using other Si5351 based breakout

Hi, Last night while working with the Si5351a I noted something interesting, that made me recheck the spec sheet several times: At least in my Si5351a the power level are inverted! In the App Note

Hi, Tests shows that it's a problem with the lib, I assumed that the lib works with a 27 Mhz xtal, raduino uses 25 Mhz and the internal max PLL VCO is way beyond the range of the max with a 25 Mhz

Hi, There was a reason why I advised you to use the set-up (see below) when using your sig-gen as a signal source to test the receive of your Bitx. Yes, your Bitx has a noise floor of around -120dBm

-73 dbm is S9 signal, so go a lot lower than that. 73 Ken VA3ABN