Re: uBitx Opto Coupler / VFO not working
#ubitx-help
#ubitx
I desoldered all wires from the encoder. The push putton funktions works from open circuit to 0 ohm when I push it. Connecting the yellow and red wire doesn't change a thing on the display. I
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kj6etl
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#49123
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Re: Should we adopt the KD8CEC firmware?
Dennis W7DRW Perhaps I can provide a little information that may get you started. The .hex file is generated by the compiler. In the Arduino IDE on Linux it is stored in a temporary directory. Windows
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Arv Evans
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#49122
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Re: Variable IF
Attached is a schematic of the variable IF circuit. ?The RX and TX voltages are about 12V, so I used a resistor network to keep the applied voltage to about 1 to 9V because that is the usable range
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Tom Cooper
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#49121
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Re: #arduino #bitx40
#arduino
#bitx40
Allard, I? checked the purple wire is indeed on the center wiper and I do have 0 to 5.0 volts as I move the shaft.? Tom WD9GON
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Thomas Erwin <terwin3486@...>
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#49120
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adding to base load software
Tim, I am a little confused by your post titled Re: [BITX20] Should we adopt the KD8CEC firmware? You mention a feature you may want to implement. To me, whether the 'base load' is hfsignals firmware,
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Rod Davis <km6sn@...>
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#49119
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Re: PA breaking into oscillation? (uBitx)
OK. Figured it out.? Relays are fine. The culprit: I have?a PCB trace,?with the node/net L1, C200, C80 running parallel to my RF output trace (from relay KT1, pin 5) causing feedback. Doh. I should
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Mike
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#49118
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my take on ?BITX panels for EF01 enclosures
#ubitx
#3d_printing
I finally got around to designing and printing ?BITX panels for the EF01 enclosure.? I switched out the LCD for a white on black one.? I ended up recessing it in the panel to avoid the need for a
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Doug W
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#49117
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Re: Should we adopt the KD8CEC firmware?
Basic CW capability using the PTT switch on the mike is very lightweight and?I'd tend to include it on any uBitx build. ? ??/g/BITX20/message/44349 What firmware gets shipped by
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Jerry Gaffke
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#49116
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Re: No mic audio
I get 3.0 mV to the connector with good continuity to the microphone.
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t.h.mills@...
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#49115
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Re: Should we adopt the KD8CEC firmware?
if it was carefully and intentionally engineered with design documentation that will open the door for experimentation then I am all for it..if it was hacked on the fly with no or poor documentation
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K9WIS
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#49114
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Re: Should we adopt the KD8CEC firmware?
Well, Ash. It seems to me that there are too many opinions to change things very much. It is probably best to leave things pretty much as is, and let each user determine what's the next best thing to
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John Backo
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#49113
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Re: Should we adopt the KD8CEC firmware?
Think of it this way. I want to add a Tune item to the menu. The item will send a CW signal and monitor an i2c peripheral for reverse power indication while the CW key is held down. Do I duplicate the
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Tim Gorman
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#49112
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Re: No mic audio
Have you measured the voltage at the electret element itself? tim ab0wr t.h.mills@... wrote:
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Tim Gorman
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#49111
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Re: Should we adopt the KD8CEC firmware?
I disagree that the original software is a good starting point for building on as its tuning and keying section need work. I think the uBitx should be shipped with a software that best promotes it's
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John (vk2eta)
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#49110
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Re: #arduino #bitx40
#arduino
#bitx40
Tom, measure the voltage on the slider of the tuning pot with a DVM. It should range from zero to +5V depending on the pot position. Also make sure that the tuning pot is wired correctly. The purple
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Allard PE1NWL
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#49109
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Re: PA breaking into oscillation? (uBitx)
Lead length at this frequency is mostly irrelevant. Stray Capacitance could be an issue in side circuit coupling or if the circuit is oddly designed at an extremely low capacitance level. Stray RF and
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K9HZ
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#49108
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Re: a new application of morse code
#off_topic
Charlie McEwen and I got our licenses about the same time. When we started playing HS football together, I was an offensive end and he played offensive tackle right next to me. We called cross-blocks
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Jack Purdum <jjpurdum@...>
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#49107
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Re: a new application of morse code
#off_topic
Lee said: "I once heard of a ham that could not speak because of surgery and he tapped morse code on his wife's hand "pain very bad" so she cold tell the doctors." My brother and I used Morse once
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Jim Strohm
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#49106
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Re: How to find your HEX file after a compile?
I've had several people ask me about this since I mentioned it several days ago. To find your compiled hex file: 1. Go to your Preferences settings (File --> Preferences) and check "Set verbose output
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Jack Purdum <jjpurdum@...>
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#49105
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Re: Should we adopt the KD8CEC firmware?
https://www.amazon.com/Beginning-Arduino-Second-Learn-Programming/dp/1484209419
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Arvo W0VRA
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#49104
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