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Ideas for "bulletproofing" the uBitx
Hello, here
By
Gerard
· #85026
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Happy new year 2021 ....Champagne.
The petarts roar, the fireworks illuminate the sky We here we are in 2021. I wish you a very happy 2021. Especially excellent health in this difficult period. Made good qso with your ubitx. Don’t forg
The petarts roar, the fireworks illuminate the sky We here we are in 2021. I wish you a very happy 2021. Especially excellent health in this difficult period. Made good qso with your ubitx. Don’t forg
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By
Gerard
· #85015
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Testbed sketch uploaded to files section
On the WIKI, there was a beginning ....why not to continu? BITX20@groups.io | Wiki
On the WIKI, there was a beginning ....why not to continu? BITX20@groups.io | Wiki
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By
Gerard
· #84954
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Testbed sketch uploaded to files section
Hello, It is really a shame (Shame --> it's reverso traductor, dont known if it's the good word. Lol) that there is no Excel table with all the programs created by users and their functions. An update
Hello, It is really a shame (Shame --> it's reverso traductor, dont known if it's the good word. Lol) that there is no Excel table with all the programs created by users and their functions. An update
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By
Gerard
· #84953
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How long does shipping take? - I have DHL disaster
Hello, Once I had gone through this discussion. Material returned to the sender for a reason not CE standard. Otherwise, very satisfied with my last stay in Puerto de la Cruz. It’s beautiful the Canar
Hello, Once I had gone through this discussion. Material returned to the sender for a reason not CE standard. Otherwise, very satisfied with my last stay in Puerto de la Cruz. It’s beautiful the Canar
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By
Gerard
· #84950
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a little question on AGC
Barry, OK, i will modify that on my kicad file. I have already implemented your AGC on the Kicad PCB. My only concern is that my 2nd Nano is not fully exploited. I haven’t found much editing on the Ub
Barry, OK, i will modify that on my kicad file. I have already implemented your AGC on the Kicad PCB. My only concern is that my 2nd Nano is not fully exploited. I haven’t found much editing on the Ub
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By
Gerard
· #84937
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a little question on AGC
Barry, Thank's for your answer and comment. I have put them in my kicad file and modify value of resistor. With a jumerp, it's will be possible to use it or no. Here schematic So, My new design of the
Barry, Thank's for your answer and comment. I have put them in my kicad file and modify value of resistor. With a jumerp, it's will be possible to use it or no. Here schematic So, My new design of the
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By
Gerard
· #84929
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a little question on AGC
Hello, Barry, I noticed a slight difference between your schematic and that of the Ubitx for the connexion On your schematic , R37 and C32 seem reversed in place. There is a correction to be made for
Hello, Barry, I noticed a slight difference between your schematic and that of the Ubitx for the connexion On your schematic , R37 and C32 seem reversed in place. There is a correction to be made for
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By
Gerard
· #84887
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a little question on AGC
Hello, Thank you all for your answer. Barry, thank's for your diagram It's clear now for me cdt
Hello, Thank you all for your answer. Barry, thank's for your diagram It's clear now for me cdt
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By
Gerard
· #84870
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a little question on AGC
Thank you Evan, Now it’s clear I will be able to implement it on my new design PCB cdt
Thank you Evan, Now it’s clear I will be able to implement it on my new design PCB cdt
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By
Gerard
· #84847
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a little question on AGC
re, In the end, I’m no longer sure of the connection. On their document, they describe their Bitx, a bit upside down. So I will see a connection after the 45MHZ filter. Only someone who has set it up
re, In the end, I’m no longer sure of the connection. On their document, they describe their Bitx, a bit upside down. So I will see a connection after the 45MHZ filter. Only someone who has set it up
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By
Gerard
· #84839
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Capacitor on IRF510
Re, an other question: do you know why capacitors on IRF 510 are sometimes at 0 (On schématic Ubitx V6) or 0.1µF on other schématics (Ex M0thy)? What is their usefulness? cdt
Re, an other question: do you know why capacitors on IRF 510 are sometimes at 0 (On schématic Ubitx V6) or 0.1µF on other schématics (Ex M0thy)? What is their usefulness? cdt
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By
Gerard
· #84838
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a little question on AGC
Hello, I think the answer is here See Pages 28,29 Connector J5 The agc is with thier Easy Bitx 2 Building Easy Bitx 2 0mt (amateurradiokits.in) cdt
Hello, I think the answer is here See Pages 28,29 Connector J5 The agc is with thier Easy Bitx 2 Building Easy Bitx 2 0mt (amateurradiokits.in) cdt
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By
Gerard
· #84836
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a little question on AGC
Jerry, Thank you for your answer. Despite everything i find this schematic interesting. I found the utility of the 3 pins connetor On documentation: "A 3 PIN Connector is provided to either use berg p
Jerry, Thank you for your answer. Despite everything i find this schematic interesting. I found the utility of the 3 pins connetor On documentation: "A 3 PIN Connector is provided to either use berg p
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By
Gerard
· #84831
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a little question on AGC
Evan, 1) I agree with you. I find it hard to believe that the diode will turn into varicap. I don’t see where a current could pass through that diode. Maybe the R13 reference matches another model as
Evan, 1) I agree with you. I find it hard to believe that the diode will turn into varicap. I don’t see where a current could pass through that diode. Maybe the R13 reference matches another model as
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By
Gerard
· #84828
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a little question on AGC
Evan, R13 here is from schematic of Ubitx V6 an athoner question: Do you know the signification of these pins (S R T TN) S for me Ground i think. What are the connexions without plug and with a plug i
Evan, R13 here is from schematic of Ubitx V6 an athoner question: Do you know the signification of these pins (S R T TN) S for me Ground i think. What are the connexions without plug and with a plug i
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By
Gerard
· #84822
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a little question on AGC
Evan, Thank you. It's was very simple in fact. Do you think we can also couple with this little diode addition modification? See here: AGC mod – Page 2 – uBitx Using a 1N4004 or similar as a varicap o
Evan, Thank you. It's was very simple in fact. Do you think we can also couple with this little diode addition modification? See here: AGC mod – Page 2 – uBitx Using a 1N4004 or similar as a varicap o
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By
Gerard
· #84821
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a little question on AGC
Bob, Ok for the ground. It was one of my thoughts, not the author’s PB is here: It’s actually the sentence on the top that I’m having trouble understanding. But my question is the same. How should the
Bob, Ok for the ground. It was one of my thoughts, not the author’s PB is here: It’s actually the sentence on the top that I’m having trouble understanding. But my question is the same. How should the
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By
Gerard
· #84819
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a little question on AGC
Hello, on the M0Thy readme documentation is writted: When wiring the volume control you may find the AGC circuit works better (and with less distortion) if you change the value of R53 to 10K and the
Hello, on the M0Thy readme documentation is writted: When wiring the volume control you may find the AGC circuit works better (and with less distortion) if you change the value of R53 to 10K and the
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By
Gerard
· #84791
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Second Arduino Nano
Dennis, If you have an electronic schema, I can implement it on the PCB. I still have room for that I think it's for an automatic tuner antenna. I have already added several things. I would like to ad
Dennis, If you have an electronic schema, I can implement it on the PCB. I still have room for that I think it's for an automatic tuner antenna. I have already added several things. I would like to ad
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By
Gerard
· #84723
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