Here is the link: http://www.hamskey.com/2018/06/ubitx-with-nextion-lcd-cec-firmware.html You will need to scroll down past the description on how to install the software to the schematic that shows t

#nextion #v3

V6 Nano D8 (Pin11 on display connector) Touch Nano D9 (Pin5 on display connector) D_C I'll try to find the Nano usage in the code. no guess yet.

#nextion #v3

Does anyone have the proper pin outs for nextion display attachment to a v3. I have the black cable on Pin1; Red on Pin2 this was opposite of v6 hookup for power and ground. On the v6 I connected yell

#nextion #v3

I have very good luck with JLI elements. I have used this one on both uBitx and Bitx40's in the past. https://www.jlielectronics.com/microphones/com-mic-jli-52b/ They make a number of other elements t

#v3

Thank You all for the input.

#v3

Cool, bob

#v3

Hi Bob, The increase in output from 19 to 21 watts is 0.4dB- never to be noticed on the air. And one has to speculate how much the distortion increased- maybe 0.4dB? Dale W4OP

#v3

In light of the recent discussions about microphone elements, I want to share this experience: I have built 4 "Version 3" transceivers and 4 microphones using the electret elements supplied with the k

#v3

Unlikely that it was static damage. The is a DC path from Antenna to Ground via L1/2/3/4 and T2. Raj

#v3 #ubitx #ubitx-help

Hello, I had the Q90 which went away during a static storm discharge. To avoid that it remains connected in reception I added a relay to cut the connection of C80 in reception

#v3 #ubitx #ubitx-help

these are generic electret mics. this is a good substitute https://www.digikey.com/product-detail/en/panasonic-electronic-components/WM-61A/P9925-ND/252843

#v3

Does anyone know the manufacturer and part number of the electret microphone that shipped in the V3 kits? I've searched and haven't been able to find it. 73 KB3OYF

#v3

Hi Jep, I built one like that in a pen, but then moved it to a metal tube and the readings were much more reliable. I think shielding is important for these to keep stray RF from getting into the DMM.

#v3 #ubitx #ubitx-help

Hi Jonas, Yes, I should have a couple of 1N34A in my junk box; then the link you kindly provided will be a good guide for building it. I will do that tomorrow. This has been a very fruitful day, I am

#v3 #ubitx #ubitx-help

Hi Pat, I have installe SMD parts on legacy circuit boards and the other way round. What you describe is about the same thing I did. It works:) I spent years on the fire department. There is nothing t

#v3 #ubitx #ubitx-help

Hi Jep, Well, if you have some components such as a germanium diode I suggest you build yourself a RF probe, then you can use the fluke to measure RF levels before and after transistors. See example:

#v3 #ubitx #ubitx-help

For anyone that thinks they may be replacing the transistor more than once, you can cut single sections off of SIP sockets and solder them onto the pads. Then it is as simple as unplugging one transis

#v3 #ubitx #ubitx-help

Hi Allison, thank you for the comments. Luckily enough, R84 was not altered as I found full 12V on transistor collector. At the end, an old TO5 metal-case BC142 came out of my "marine" junk box so I i

#v3 #ubitx #ubitx-help

nil sine causa accidit Jerry

#v3 #ubitx #ubitx-help

Besides Q90 as possible failure if it fails shorted R84 tends to fail. THats that little 10 ohm SMT that supplies 12v (nominal) to the collector of q90. So if the collector is at .5V (TX) then R84. FY

#v3 #ubitx #ubitx-help