Evan, I ordered the amplifiers. (5 modules for 10 euros!!! + free shipping) so only 2 euros per module. I’ll have them in less than 4 days. Thanks Jeff! Another question on use. On the Nextion and als

Evan, I made the change this afternoon for pop This cuts the sound well when I switch to TX, but as soon as we return to RX there is always a noise as if a capacitor were draining. This noise is lower

Evan, Here part of the schematic for reception and amplifier The amplifier is a little different from the V6 I changed the C38 to 220µ for POP, but reduce, not eliminate. For amplification, it lacks s

Evan, I did note the smeter with the Ubitx manager. this afternoon, I modified the input of the signal by adding the filter that exists on the ubitx v6. he L31, C205, L32 together form a single low pa

Thank you Evan. I still have to make some changes. I will replace the 3904 with BFR and modify a capacitor (C38 on the HF signal datasheet) to avoid the "pop". For the Smeter, I chose the right HEX fi

Hello all, hello Evan After a lot of research my homebrew µBitx finally works. There was in fact a dry weld on the transformer before the 12Mhz filter. It remains to be seen: Sound in slightly distort

Evan, Thank you for the pictures I have received this day my new antenna. So I installed this one. It’s the same, the reception is very weak. So much so that I had to stop my tests when the neighbor m

Evan, i have put a message for you, in the post of the quality tricoid

#ubitx-help #v5 #bfo #filters #noise

Evan, You answered on another subject (pb noise) and put a photo of your µBitx. We can see that the transformers in input and output of the quartz filter have only 2 wires. At rigor, they seem to be w

hello, I noticed on the oscilloscope that a "mechanical" encoder creates parasitic pulses when you turn it. We have a square signal, but also small very short pulses. (On the 2 phases) We may have to

Hello Evan, Thanks for the measures. It’s exactly the same signal I’m getting. On the other hand, the other 2 clocks are perfectly sinusoidal. So everything is normal for me. I am waiting to receive a

Hello, Try here https://ubitx.net/2018/07/16/nextion-3-2-and-3-5-display-firmware/ cdt

Hello, I worked a lot on my µBitx (Homemade) in reception mode. I really went through the whole editing and I also switched with Evan. The only i have found technical documentation is this one. There

Hello, When I look at different pictures of µBitx, I have the impression that these are not always wound in the same way. Some tricoils appear to be less drawn between the wires. So I have several que

Evan, Ok. I watched these 2 videos https://www.youtube.com/watch?v=ftEraV0RKdA https://www.youtube.com/watch?v=oKYD8vQkpb4 Here one of the largest in the world https://www.youtube.com/watch?v=j-cN-ebs

Evan, Look this video I have the same type of attic at home. I had thought about doing the same type of antenna. You can’t see anything from the street. Careful for the moment, I’m just doing the rece

Evan, This afternoon i have all controled with a generator. The two stages of amplifiers (Each 3 transistors). the filter 45MHZ. The scale filter 12 MHZ.etc I have also tested with generator on test p

Evan, This is what I wanted to know with the antenna disconnected. In this case, the problem can only be at the level of the mixer with the clock2. I’ll double-check the enteric transformer. For the d

Hello, Is there a document with a copy of the signals seen on the scope of the test points? I did find a documentation of Ufi Auttorri but this only gives the continuous tensions on the legs of transi

Hello, I don’t want to say anything wrong, but I believe that the CEC software only works on µBitx versions from 3 to 5. For the µBitx V6 this is not yet planned. The V6 has an ILI9341 display. The sp