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Date
Re: STM32F769-FT8-Transceiver
My FT8 system is working, thanks to Charley's help! There was a connection discrepancy in my wiring! Now I have to mount everything into a functional case. Photos later. Your mileage may vary, Jim
By Jim Reagan · #73531 ·
Re: My #ubitx build from scratch #ubitx
One more thing I should have mentioned. If you use those "Spot welding" bits and cut it through the board you can create your own 5/16 inch tiny pads in no time out of some scrap PCB. Anthony VU3JVX
By Anthony VU3JVX · #73530 ·
Re: My #ubitx build from scratch #ubitx
Hi Alan, I have not checked my latest qrp sprat magazine is expected soon.The pcb cutters are very popular and last well.Using a small multipurpose drill at medium speed you get perfect results.The
By Ian Reeve <ian.radioworkshop@...> · #73529 ·
Re: Audio isolation w/ digital modes #ubitx
Hi Arvo, I have something like it on a ugly build uBITx V5. It is very difficult to control the volume of Audio Out. Very sensitive at the beginning of the volume knob. Did you (or somebody else)
By Erwin - PE3ES - F4VTQ · #73528 ·
Re: Active antenna into uBITx V5 gives some smoke on the coax #ubitx #v5 #antennas
Qrp pops has some really great stuff on active antennas [email protected]> wrote:
By Ashhar Farhan · #73527 ·
Re: Active antenna into uBITx V5 gives some smoke on the coax #ubitx #v5 #antennas
Reversing the power would not make my uBITx work I think. And it is working (still ;-) -- PE3ES - F4VTQ - Erwin 73
By Erwin - PE3ES - F4VTQ · #73526 ·
Re: My #ubitx build from scratch #ubitx
Ian, I think they were (temporary) out of stock, MePads & MeSquares are currently listed on the club sales pdf Have you tried recently? Alan
By Alan de G1FXB · #73525 ·
Re: My #ubitx build from scratch #ubitx
Reminds me of:- http://qrpme.com/docs/NJ%20Pad%20Cutter.pdf Rex @ QRPme should be able to fix you up, the hyper link to the product on the web site doesn't work:- http://qrpme.com/?p=product&id=DDR
By Alan de G1FXB · #73524 ·
Re: My #ubitx build from scratch #ubitx
In the UK the GQRP club sell a pcb island cutter.Using a drill preferably in a drill press this tool isolates a circular island of copper from the rest of the pcb.circuits can be built using this
By Ian Reeve <ian.radioworkshop@...> · #73523 ·
Re: My #ubitx build from scratch #ubitx
Thank you Jerry. You always ask the questions which matters and that's what I like about you. Because of this I never felt like asking any question on this forum while building the ubitx, people can
By Anthony VU3JVX · #73522 ·
Re: My #ubitx build from scratch #ubitx
Regarding tools to create those circular copper islands: Searching the web for "diamond hole saw" I see lots of options. That banggood price was probably for the whole set, not just one as I had been
By Jerry Gaffke · #73521 ·
Re: My #ubitx build from scratch #ubitx
Thank you Dale, The layout is very easy it's exactly the same as the schematic. I will try to upload few close up picture in high resolution. I am trying to build/draw the layout with the component
By Anthony VU3JVX · #73520 ·
Re: My #ubitx build from scratch #ubitx
Very nice, looks beautiful! Not what I would call "ugly construction"! What tool did you use to cut the circular islands of copper with? You can buy miniature hole saw bits, but they are expensive:
By Jerry Gaffke · #73519 ·
Re: Active antenna into uBITx V5 gives some smoke on the coax #ubitx #v5 #antennas
Erwin by any chance did you connect up the power feed unit up in reverse with power feeding to the uBITX? Skip Davis, NC9O
By Skip Davis · #73518 ·
Re: enhancement #ubitx #v5
Bonjour F4HUY, Seems like this information is best organized on ubitx.net ( http://ubitx.net ) 73, Mark
By Mark - N7EKU <n7eku@...> · #73517 ·
Re: enhancement #ubitx #v5
And read this : /g/BITX20/wiki/uBITX-Mods -- PE3ES - F4VTQ - Erwin 73
By Erwin - PE3ES - F4VTQ · #73516 ·
Re: Active antenna into uBITx V5 gives some smoke on the coax #ubitx #v5 #antennas
The ccircuit should have that capacitor already, I need to open that box and check -- PE3ES - F4VTQ - Erwin 73
By Erwin - PE3ES - F4VTQ · #73515 ·
Re: My #ubitx build from scratch #ubitx
You're the Man!!! You did a gorgeous job. Help others follow in your footsteps. Please place layout diagrams in the files for others to use. Dale
By Dale Hardin KS4NS · #73514 ·
Re: Done!
We are sending signals to a stepper motor controller, which then controls an NEMA 17 stepper motor at the antenna. Depending upon what you are using, I don't see why it can't be made to work. Jack,
By Jack, W8TEE <jjpurdum@...> · #73513 ·
Re: Done!
Cool!? And for those that already own a loop (alex, alpha or whatever... I haven't actually owned a loop since the AES Isoloop which I still miss), is it an easy retrofit? Dave
By David Adams · #73512 ·