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Date
Re: No output
5v at reg out. Changed finals. No go.
By Sam Tedesco · #66634 ·
No output
Hi everyone... My dev rig has zero output. Receive is fine. No tx. Finals are hot without xmitting. Fielding ideas while I troubleshoot. I did have it hooked to a linear. It was acting weird and
By Sam Tedesco · #66633 ·
Re: NEED HELP
My case came with several pages of 'instruction.'? one of these conveys the 3 places the LED solders to for the PTT illumination.? I am remembering this thing to be way too bright, so I used larger
By Curt · #66632 ·
Re: ubitx sidetone only mode
In my experience, "learning" code while trying to accomplish something with it is about as much fun as trying to balance a tennis ball on the end of a piece of strong.? Please feel free to share any
By Ted · #66631 ·
Re: Balanced Mixer Audio Input Impedance
Tom, I find EER interesting mostly because it helps me think about what SSB is in the time domain.? We normally think of SSB as a band of simultaneous frequencies roughly 2500 hz wide, but
By Jerry Gaffke · #66630 ·
Re: CEC< 1.122 For V5 CW BFO adjustment
All, ?Choosing? to "Enable Adjust CW Frequency" got me closer (200 Hz) away now. Is that close enough or do I need to adjust the "CW Freq Adjust value" ? I tried adjusting the BFO and that didn't
By Mike · #66629 ·
Re: NEED HELP
Where does the led connect to? In photos it seems to connect to the underside of the main board.
By Laddie <laddie2@...> · #66628 ·
Re: Balanced Mixer Audio Input Impedance
My compressor/limiter?is a dual opamp circuit with the second unit as a unity gain current buffer. There is an output control before that stage. So, it from the above discussion I take it that I will
By frederick.brown@... · #66627 ·
Re: ILER QRP CAG (AGC)
The manual for the module says it has been adapted to the ubitx, and it looks to me like it would work readily enough since it is audio only.
By Brutus Laurentius · #66626 ·
Re: 100/ppr Rotary Encoder Detents
Some of the inexpensive rotary encoders do have two steps per detent. We found that in early BITX units with the Si5351a synthesizer. This required a small software change to accommodate that
By Arv Evans · #66625 ·
Re: Balanced Mixer Audio Input Impedance
That is interesting to ponder. I've been up all night working on a client project, so I'm a little fuzzy right now, but is sounds like if you could not control the phase reversals some other way that
By Tom, wb6b · #66624 ·
Re: Kit-Projects ND6T Ubitx AGC
The version you have is the production design. The photos on the website are the prototype revision. After installing it in my own uBitx I realized it was harder then it needed to be so I adjusted the
By KE2GKB · #66623 ·
Feedback/"echo"/ringing #bitx40 #bitx40help
I've got a new problem... and the severe return of an older problem.? Maybe someone has seen this or can explain why it happened. My BitX40 had a stereo 1/8 jack for audio out.? After all sorts of
By Robert D. Bowers · #66622 ·
Re: Wire-up (Almost) Done #bitx40
Thanks, Vic, that was my assumption but not sure. The two wires I took to the BNC ground lug were the negative from the PA and the negative from the Raduino. [email protected]> wrote:
By Pat Anderson <anderson5420@...> · #66621 ·
Re: Kit-Projects ND6T Ubitx AGC
It appears that you have changed the layout of the solder pads for the switch wires. It does not match the board that I have. Is this a newer design? Doug WB5TKI
By dseyler@... · #66620 ·
Re: 100/ppr Rotary Encoder Detents
In my case it is probably “0ld School” as I am used to a smooth feel on a tuning dial. If tuning at a medium speed I want to hear the radio signals popping by as I can usually hear and ID a signal
By Jim · #66619 ·
Re: 100/ppr Rotary Encoder Detents
Mouser carries "detentless" encoders for under $2, so unless you value your time at less than 10 cents per hour, why not buy one or go big an buy an optical encoder.. The resolution depends upon the
By Jack Purdum <jjpurdum@...> · #66618 ·
Re: 100/ppr Rotary Encoder Detents
Call me crazy but I find the clicking annoying on a receiver, unless it’s a field radio where the resistance can be an advantage. Haven’t seen it on a premium receiver, won’t say none have
By Scott McDonald · #66617 ·
Re: 100/ppr Rotary Encoder Detents
I have several commercial devices that ALL have encoders with detents.? I have no difficulties operating any of them.? So I have to ask the question why not do the same with your uBITX?
By Dennis Zabawa · #66616 ·
Re: Maximum and minimum voltages for uBitX V5?
A mod I have done on a couple BitX rigs now is to add a 12v regulator on the line supplying power to the main board and Raduino. Even with a 12v supply the supplied voltage stays up around 11, which
By Vic WA4THR · #66615 ·