Hi Aaron, Careful now, the 3 inches you cut off here moved the resonant frequency 230kHz up. This is ~75kHz/inch. Chances are that you want to cut off just less than one more inch to get the resonance

#ubitxv6 #swr

Hi Bob, Here’s good info on making LPF: https://qrp-labs.com/images/lpfkit/assembly_A4.pdf Regards, Jonas

#ubitx

This is how I do it, I have added a pushbutton on the front that is connected to the CW key jack. You don't have to switch mode to CW to use it, just make sure CW key mode is set to straight key befor

@ Trystan, This isn't a courtroom, hearsay is allowed here :-) @ Bob, thanks for informing us of the solution, I think all discussed problems should have their solutions communicated as it might help

Hi Bill, You can download the precompiled hex files here: https://github.com/phdlee/ubitx/releases/download/v1.20/uBITX_CEC_V1.200.zip Unzip, and read the text file that describes which hex file you s

Hi Bill, You should only upload the precompiled .hex file with xloader. Perhaps You downloaded the source code instead? Regards, Jonas Den tis 24 nov. 2020 kl 19:18 skrev Bill Robbins <wa8cdu@charter.

Hi Gerards, Have You seen this project? https://sites.google.com/site/lofturj/to-automatically-tune-a-magnetic-loop-antenna Regards, Jonas Den tors 12 nov. 2020 kl 14:36 skrev Gerard <kabupos@...

I think a 47kohm resistor from antenna to ground at antenna intake would solve it. Cheers, Jonas

#ubitx-help #tx #ubitxv6

You have my sympathy. Ignore my previous mails on this subject, I didn’t see this ‘til now. Regards, Jonas

#ubitx-help #tx #ubitxv6

Hi Jerry, Those DC-paths might prevent static build-up, but that might not be sufficient if the uBitx is unconnected and static builds up on antenna and then it is connected? Regards, Jonas

#ubitx-help #tx #ubitxv6

Hi Aaron, Can you borrow or buy a SWR/power meter + dummy load? If You connect the antenna port to a dummy and the radio port to the antenna and transmit on the other antenna You can see how much powe

#ubitx-help #tx #ubitxv6

Hi George, I would suggest looking at the S-meter while removing power to the PAM8610 amplifier module. I've also been playing with using a Class D audio amplifier in my V.4 uBitX, but so far I've not

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

Hi Eduardo, Unless You have feeding the PA with more than 13.8v, I am sure that using that aluminum plate will be enough. Remember that the heat sinks supplied by HF Signals are probaby used by a lot

#homebrew #ubitx

Hi Edoardo, No, I don't think You can do that without creating instability or other issues for the PA stage. I would do either 1) Use just one of the 2 heatsinks (which ought to be enough anyway unles

#homebrew #ubitx

Hi Gerard, You need to connect the 2nd nano's input to the VOL-high connection as in the drawing (the max signal), not the middle as that has a signal that varies with volume pot position. Yes, You ha

Hi Gerard, No, I think You misunderstood me. You do *NOT* need a second Nextion in order to use the extra Nano. The extra Nano is connected to the 1st Nano in parallel with the Nextion. See the descri

Hi Gerald, You can add another Nano with the DSPmeter code without adding extra Nextion screens. Just connect it between Radiuno and Nextion. Regards, Jonas - SM4VEY Den tis 13 okt. 2020 kl 20:44 skre

The bias pots are named RV2 and RV3. Regards, Jonas Den tis 13 okt. 2020 kl 19:23 skrev Praba Karan <vu3dxr@...>:

#v3

Hi Praba, I suspect that the pot you refer to as bottom pot is the drive level adjustment. The bias pots are of same type but the drive level pot is of a different type in my v3 regards, Jonas - SM4VE

#v3

Hi Burçak, I'd contact support@... for help with this. They are very helpful and should be able to help and solve the problem. Regards, Jonas Den tis 13 okt. 2020 kl 10:31 skrev Burçak Çubuk

#ordering #ubitxv6 #homebrew #v6