¿ªÔÆÌåÓý

Date
Re: uBitx V3 parts size
/g/BITX20/message/48729 from: Ashhar Farhan 05/11/18 #48729 ( /g/BITX20/message/48729 ) "I tried to keep all resistors and capacitors to 1206. However, some of the
By Gary Anderson · #89152 ·
Re: S-Meter with AGC circuit, help!
Hi John, I'm afraid your are speaking about the AGC fast-slow reaction, instead of my question regardin the SMeter reaction, which is quite slow. Am I right? Giuseppe
By Giuseppe IZ4JUK · #89151 ·
Re: S-Meter with AGC circuit, help!
I have replaced the fast / slow positions with a 5Mohm potentiometer that is connected to the off points. Now I can adjust it from off to nice and slow? I use a linear taper for now but am looking
By John Cunliffe W7ZQ <n2nep@...> · #89150 ·
Re: S-Meter with AGC circuit, help!
Hi Evan, well, thank you very much, as this was the problem! Now the SMeter works! I just had to set up the right values and now the reading works. So many thanks for you help! It's not very fast,
By Giuseppe IZ4JUK · #89149 ·
Re: S-Meter with AGC circuit, help!
Hi Giuseppe, From what you are describing, I believe that there is a calibration issue with the CEC software.? I would recommend you follow the method using the S.Meter Assistant button, reading the
By Evan Hand · #89148 ·
Re: S-Meter with AGC circuit, help!
Hi Evans, I checked in the uBitx options under the View ADC menu, and putting the frequency on a signal, I read values increasing depending on teh station signal, until 250. Therefore apparently the
By Giuseppe IZ4JUK · #89147 ·
Re: S-Meter with AGC circuit, help!
Hi Giuseppe, The link was meant to show you the screen on the Nextion display where the ADC values from pin A7 can be displayed in real-time.? That would tell you that the S Meter signal is getting
By Evan Hand · #89146 ·
Re: S-Meter with AGC circuit, help!
Hi Evan thanks for your answer. as per the link you posted, when Zi played with the external simple circuit advised by kd8cec, I tested several capacitors and choose 0,38uF as well. I tested also
By Giuseppe IZ4JUK · #89145 ·
uBitx V3 parts size
I am going to buy 11ohm resistors, and a 470pf cap as part of Allison's mod to even up the power. My question is, what size are the parts I am replacing? Replace or parallel R941,R911, R96,R942 to
By Ed Beckerich · #89144 ·
Re: S-Meter with AGC circuit, help!
Giuseppe, There should be a page on the Nextion that can help with the calibration of the S Meter input.? Here is a link to a video where Dr. Lee uses the page to compare capacitor
By Evan Hand · #89143 ·
S-Meter with AGC circuit, help!
Hi all, I need you help as I¡¯m struggling in finding the problem of my uBitx V6 with th AGC circuit from kit-project.com. The AGC works well, but the SMeter is not moving! Before to install this
By Giuseppe IZ4JUK · #89142 ·
Re: RF power transistor
Sorry Guys, If you follow the other posting you will see that they are gone.I put 37 packages and envelops into the mail yesterday I do have reclaimed several BLF861 FETs last night but have not
By John Cunliffe W7ZQ <n2nep@...> · #89140 ·
Re: TSW Teensy 4.1 based Raduino KIT still available
I do, but shipping to the Philippines is between $18 and $20 US and I have been having trouble shipping the kits to the Far East due to US Customs not understanding amateur radio kits. Jim
By Jim Sheldon · #89139 ·
Re: TSW Teensy 4.1 based Raduino KIT still available
Hi George, The 4.0 is a smaller footprint and will not work in place of the 4.1. We do have an adapter that you can use for fitting a Teensy 4.0 to the original factory Raduino in place of a NANO
By Jim Sheldon · #89138 ·
Re: uBITX Output
In my case if was a multitude of problems like layout and wrong toroids. You are seeing those strong spurious and high power. Check output filter components for wrong values or failed parts.
By Raj vu2zap · #89137 ·
Re: uBITX Output
this is probably a feedback induced spur. Can you move the L5 and L7 (the inductors on either side of the 45 Mhz filter) to the other side of the pcb (to the bottom side). Some inductor/transformer is
By Ashhar Farhan · #89136 ·
Re: TSW Teensy 4.1 based Raduino KIT still available
Jim, After visiting the w0eb.com website the international shipping question has been answered. The Teensy 4.0 has the same form factor as as 3.6 according to the documentation.? The question still
By George DU9GT · #89135 ·
Re: RF power transistor
John, I'll take one please.? Fr Richard?Wb8yxf? Glory to God On Sat, Jun 12, 2021 at 0:57, Ashok Srinivasan via groups.io<ashok_srinivasan@...> wrote: If live to get one.
By Fr Richard R <rickocr2005@...> · #89134 ·
Re: RF power transistor
If live to get one. Thanks! Ascon
By Ashok Srinivasan · #89133 ·
Re: TSW Teensy 4.1 based Raduino KIT still available
Jim, Thanks for the update! Two quick questions: Do You offer international shipping? Will it work with the Teensy 4.0 which is considerably cheeper here in the Philippines? Thanks again, George
By George DU9GT · #89132 ·