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Date
Re: (Some) Nextion Displays not working
Ok I have found the issue. Due the fact I have used the nextion for previous projects, the fixed baudrate in them was changed. I have fixed that by placing the command? "bauds=9600" on page 0 in the
By Bj?rn Pasteuning · #54554 ·
Re: calibrate v4 ubitx
No, adjusting the BFO frequency is a bad idea. That will change the audio characteristics on both transmit and receive. And it will only "calibrate" the rig when operating at the frequency of the
By Jerry Gaffke · #54552 ·
Re: I think this will work for the Ubitx...microphone
My screws were all Phillips on the one that I have.
By Kevin Rea <reakevinscott@...> · #54551 ·
Re: uBitX CAT problem on 40m #ubitx #ubitx-help #ft8
Sorry Dave was using a ubitx also..
By bill richardson · #54550 ·
Re: uBitX CAT problem on 40m #ubitx #ubitx-help #ft8
I have the same issue with both of my uBitx¡¯s only on 40 meters. Last weekend I was at Lobstercon and Dave kd1na on his bitx40 also suffered from RF getting into his but again just on 40 meters. The
By bill richardson · #54549 ·
Re: uBITX adjustable power supply?
Look at fig 2 of that wikipedia page for the boost converter: ? ??? ??https://en.wikipedia.org/wiki/Boost_converter If the inductor is large enough, the inductor current will be constant. When
By Jerry Gaffke · #54548 ·
Re: calibrate v4 ubitx
I believe most of them use TORX (also known as Star or Spline ) screwheads. Probably T-8 or T-10 size if I remember right. Jim - W0EB
By Jim Sheldon · #54547 ·
Re: I think this will work for the Ubitx...microphone
Hi Kevin, What tool removes the screws holding the Baofeng microphone together? My small Phillips screwdriver doesn't work on it.? Thanks, George, k1DX
By george.woods@... · #54546 ·
Re: uBitX CAT problem on 40m #ubitx #ubitx-help #ft8
The USB input to the raduino is particularly vulnerable. Ferrites there are a good idea, and also use a one to one current balance on your antenna cable. The cause is unbalanced feedline currents
By Gordon Gibby <ggibby@...> · #54545 ·
Re: uBitX CAT problem on 40m #ubitx #ubitx-help #ft8
I had the same issue with my Yeasu when I first started using Fldigi. I put snap on Ferrites on the audio leads and wound the control cable about 6 turns around a ferrite toroid and that solved the
By R. E. Klaus <reklaus@...> · #54544 ·
Re: Animated GIF of BITX17 scratch build
Bill, That makes me car sick if I keep watching it:-) It is cool though. I made my best QRP DX contact with a Hendricks Bitx17. From S. Oregon to Antarctica Joel N6ALT
By Joel Caulkins/N6ALT · #54543 ·
Re: uBITX adjustable power supply?
Maximum available output current will fall drastically as the output to input voltage ratio rises. You might get 4A out if the input voltage were about equal to the output voltage, it falls off from
By Jerry Gaffke · #54542 ·
Re: calibrate v4 ubitx
Jerry, I agree that calibration is a 'exercise', why does it need to be this hard. I'm no coder, but Don ND6T's calibration routine worked really good for me when I was calibrating my Bitx 60,
By Joel Caulkins/N6ALT · #54541 ·
Re: uBitX CAT problem on 40m #ubitx #ubitx-help #ft8
Hi John, I assume that you are using a computer connected to the radio since you are running WSJT-X AND CAT. It may be the computer that is being tickled by stray RF. How is your RF ground configured?
By Bill Cromwell · #54540 ·
Re: KD6CEC code and Nextion displays, tuning skips steps #radiuno #ubitx
I have noticed this as well. For example when you set the step size to 50 Hz if you tune quite quickly it seems that the step-size increases.? Are you sure that this isn't intentional ? ?I see to
By Michael VE3WMB · #54539 ·
Re: uBitX CAT problem on 40m #ubitx #ubitx-help #ft8
Radio interference! Happens on whatever bands you get currents through sensitive junctions. Experiment try to fix it, add grounds, single point ground, try ferrites lots of different places,
By Gordon Gibby <ggibby@...> · #54538 ·
Re: uBitX CAT problem on 40m #ubitx #ubitx-help #ft8
I would suggest putting a clip on ferrite core on the USB cable, right at the Raduino connector and one on the wires from the Raduino connector going to the encoder. Others have brought this issue up
By M Garza <mgarza896@...> · #54537 ·
Re: uBitX CAT problem on 40m #ubitx #ubitx-help #ft8
Sounds like a Bit of RF is getting in there ... Gw0wvl
By Marc Jones · #54536 ·
uBitX CAT problem on 40m #ubitx #ubitx-help #ft8
Hello all, I just put my antenna in a u-shape in the attic and have a better swr now so I was able to try the uBitX on 40m for the first time. What I experience only on 40m is that while using WSJT-X
By John · #54535 ·
Re: KD6CEC code and Nextion displays, tuning skips steps #radiuno #ubitx
I had an issue with encoders several years ago, in a PIC application.? I looked at the A/B outputs and noticed spikes on the square waves.? Adding two .001uF caps across the outputs to ground, cured
By Jim Reagan · #54534 ·