First dibs if the price is right. This forum/group IS the body of knowledge and support forum. For the mods and software aspect, this is an arm of HF Sigs for all practical purposes. The nature of ope

#v6

I had the same problem with my restricted configuration. I have a 20-40 fan dipole bent into a sloping 'S' in the attic. I had lock-ups and the rest when transmitting. The first problem was RF coming

#ubitx #v6

Crud. There's an M1/M2 flag on the T/R relay, K3, as well as the M1-M4 flags to ground on the top of schematic. I guess that's how the signal jumps the M1 to M2 flags. Sorry for the noise, folks. Don

#ubitx-help #v6 #v5 #v4 #audiocircuit

Hi Don, I appreciate the walk through! Ultimately, I'm finding that I'm unable to trace the audio signal because it appears to go to flag M1, while the input for the final amp seems to have to come fr

#ubitx-help #v6 #v5 #v4 #audiocircuit

Put another way, maybe: I can't figure out how the audio signal makes the trip from the audio pre-amp to the LM386 final amp.

#ubitx-help #v6 #v5 #v4 #audiocircuit

I can't speak to the rest from the vantage point of my modded V3, but it appears that item 1 has been and/or is being worked. Ashhar reported it on Christmas day, 2019. https://groups.io/g/BITX20/mess

#v6

I'm trying to understand the flow of the signal through the audio amp and pop-fix FET (Q74 in at least the V6). I *think* I get that in the amplifier stage around Q70 (V6) has a bypass cap to ground,

#ubitx-help #v6 #v5 #v4 #audiocircuit

Mark, Are you talking into the mic when you press PTT on SSB? The radio won't generate an output signal without sound going into the mic. Fingers crossed! Andy KG5RKP

#v6 #ubitx

All of the tech info for V6 to V3 are on the µBITX page https://www.hfsignals.com/index.php/ubitx-v6/ V4 direct link: https://www.hfsignals.com/index.php/ubitx-v4-archived/ V4 Schematic: https://www.h

All of the docs are archived on the HF Signals site. Here's the V4 page: https://www.hfsignals.com/index.php/ubitx-v4-archived/ And here's the direct link for the schematic: https://www.hfsignals.com/

Other's have suggested that there's no need for a nut on the BNC connector. Do you find one to be necessary?

Hi Ben, Thank you for the file upload! I played a bit with the drill files to see if OSHPark can use the files. The good news is that their tool list editing tips show us how to combine the two drill

#kicad #ubitx

Sascha, I'll add this to the pile just in case it might be valuable. I'm guessing you won't have to use Google translate for OM Kurt's pages. hi https://www.helitron.de/dj0abr/index.html Tschüß, Andy

#ubitx #cat #raduino #arduino

Scott, There's a menu option to select the tuning step rate. I think it's a 'medium length' press. (Long press locks/unlocks changes; short press brings up the menu). One of the long-press (really lon

Sascha, THANK YOU for linking to this project - I've been trying to figure out how to put a loop in my attic for close to three years - this is PERFECT! I noticed that Loftur has a 'pass-through' mode

#ubitx #cat #raduino #arduino

Andy, Respectfully, while you're free to believe as you wish, facts are not as wiggly as you might desire. You say that a flawed K-2 is acceptable because someone "tried to help" solve the problems. I

#bitx20 #legal

https://www.qrp-labs.com/bpfkit.html 73, Andy, KG5RKP/AE

Vic, You can retrieve a bezel pattern for any of the Nextion displays from 3.2 through 7 inches from Itead: https://www.itead.cc/wiki/Nextion_HMI_Solution#3D_printing_bezel I had a bezel printed by a

Jeff, If you desire to work through the process of understanding the Arduino IDE, library management, and the way different IDEs behave, please let us know which version of the IDE you're using, which

The BITX radios are open source designs intended for hacking and learning. They're not intended to be and likely never will be appliances. The info's here on the forum - grab a soldering iron and join