Re: CEC 5" Enhanced Nextion Files
#images
Mark Hatch
Sorry, one more comment, Ron (W4DNQ) stated he had an enhanced display. However, the status line on bottom says he is compiling for a basic. An Enhanced Nextion will not read the tft file for a Basic. Think the GPU is even different between the two....
Ron, any reason you cannot use the tft files I uploaded? 73 Mark AJ6CU
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Re: CEC 5" Enhanced Nextion Files
#images
Mark Hatch
Actually, I think I see the problem, but not sure why....
If you look at the bottom message line you see the specific model number being compiled for along with Flash, RAM and frequency. Here is how that line compares to mine: Flash Ram. Freq Mine. NX:8048K050_011. 32M. 8192B. 108M. 5" Enhanced OP. NX:8048T050_011. 16M. 3584B. 48M. 5" Basic What is really strange is the I have no problem compiling it for the 5" Basic.... But both the OP and Justin (K5AXL) reported that they needed to changed to enhanced to compile. Perhaps we should compare version for the Nextion editor... Again, mine is V0.53 73 Mark AJ6CU
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Re: CEC 5" Enhanced Nextion Files
#images
Mark Hatch
Joshi,
I just downloaded the December 1.hmi, and recompiled it both for basic and enhanced 5" screen. Compilation successful. Got one warning on an overlap of a component on factoryrecover (that I don't remember), but other than that no problems. I am running v0.53 of the Nextion editor. Any chance you have something different? BTW: The "December" version fixes the "9" character in the manual frequency entry that should have been a "0" 73 Mark AJ6CU
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Re: Book TOC
Dave New
Jack, Wish I had done that in 1970 when I got my Novice license, but the 'ol crystal ball had no idea that I would still be doing this almost 50 years later. I completed my quarterly payments for a life membership a couple of years ago, figuring that if lived another 20 years, it would be a good deal. Funny, how being near retirement changes your views on things like that... Thanks for the walk down memory lane with your CP/M, Basic-80 and C titles. Been there, done that, got all the arrows in my back. 73, -- Dave, N8SBE
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Re: V4 TX selective failure
#ubitx-help
#cat
Don - KM4UDX
Ha! A great analogy. Thank you!!
Getting NanoNVA under my tree. A scope would force me to learn sooo much more... I'm going to focus on physically integrating my Atomic Pi SBC into my uBITX "case". And I have a temperature switch and fans to add..and a TX/RX led, and... Because the uBITX is working perfectly, I must get back to trying to break it. Hahah Don KM4UDX P.S. You people are the best!!!
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Re: How to get rid of Local FM broadcast stations
#ubitx
Gavin
Ah, it looks like both these stations also have AM counterparts, at 1490 kHz and 1210 kHz. Does that change things?
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Re: Taa-Daa
Dave New
Gordon, If you are looking for an inexpensive Technician Class guide, check out this free PDF download: Dan is in my local radio club, and does a fantastic job of teaching a one-day Technician Class, based on this book. He's taught this class at many venues, including regional ham fests and Xenia/Dayton. If you check out this page: You will see all the other formats available, and also General and Extra class guides (non-free -- only the Tech guide is free), and even flash cards. 73, -- Dave, N8SBE
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Re: V4 TX selective failure
#ubitx-help
#cat
Evan Hand
The hart of this design is the hetrodyning up and down to provide the flexibility and selectivity. That is why calibration is sooooo important. There are two fixed points that need to be "hit" to make it work at all:
1 - the 45 MHz roofing filter 2 - the 11 or 12 Mhz (depending on version) "SSB" filter. This can only be done with calibration of the 3 clock signals. The analogy that I think of is that 2 points define a line, and all three of the clocks need to be on that line. Of course it is more like a snaking curve with the up and down signal manipulation. I am glad you found your issue. I would still recommend that you look at the SDR spectrum analyzer software for future use. It is like using a finishing file where a rasp is needed for some applications but better than no tool at all. It is also free with what you already have. The best bet may be to ask Santa for 100 MHz, or higher, oscilloscope for Christmas. 73 Evan AC9TU
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Re: V4 TX selective failure
#ubitx-help
#cat
Don - KM4UDX
Why does using this radio lead to so much humiliation? Can you see where this is going? Turns out I was trying to "adjust" master calibration and totally dorked it up. And wasn't smart or observant enough to catch my own stinky.
Thank you Dave an Evan. You are the best. I am an idiot. Turns out when you wack your master calibration number (and why so many digits anyway?), you make your uBTIX operate just like mine did. CW RF and CW sidetone work great, but audio and receive get whacked. Given it wasn't working anyway, so I had nothing to lose, I just hit reload factory defaults, and crossed my fingers. Then I remembered that in Memory Manager I had a backup. So I fired up MM, reloaded the last save fine, and presto, I was back in business. Proof that I am a very slow learner, I went right back into the tweaking calibration to reduce WSPRnet observed error to +/- 1 hz. A great site for tracking your 1 or 2 way WSPR beaconing is http://wspr.vk7jj.com/
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Re: CEC 5" Enhanced Nextion Files
#images
Joe Puma
Did you make any changes? It’s looks like one of the pages is having a memory overflow. You exceed the memory allocation for file. The issue is coming from the page that is listed right above the error. I started the redesign on that 5” and Mark Hatch finished it off.
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Re: CEC 5" Enhanced Nextion Files
#images
Justin Phillips K5AXL
I am using the Enhanced model btw, you designer might be defaulted to a smaller display, changing it to the appropriate 5" model should let it compile. I believe the error is related to images/sizes greater than the currently selected model can display.
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Re: CEC 5" Enhanced Nextion Files
#images
Justin Phillips K5AXL
Did you set the device model under Device ID? I had to change mine to Enhanced to get it to compile.
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Re: V4 TX selective failure
#ubitx-help
#cat
Don, How does your radio work when you have disconnected the sound card? When you are using a mic and regular headphones.
-- 73 Dave k0mbt Raduino bracket and Ham_Made_Keys
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Re: Unexpected Blowing of Fuses on Transmit
The only thing I can think of that would suddenly cause high current
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is a floating IRF gate. maybe a dry solder on R97/98 or IRF gate leads. A 2A fuse will need double the current to blow instantly. If I remember my EE a normal fuse rating is the current that the fuse will survive for 10hours without blowing, at double the rating it will blow in seconds depending whether it is slo blow or fast! Read more https://en.wikipedia.org/wiki/Fuse_(electrical) Raj
At 01-12-19, you wrote:
Thanks Raj,
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Re: #ubitx
#ubitx
Clark Martin
hex files are executable images, i.e. you don’t compile them, they’ve already been compiled and linked. To download it to the arduino you need to use avrdude directly.
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Something like: avrdude -p atmega328p -c arduino -U flash:w:FILENAME.hex Clark Martin KK6ISP
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Re: Unexpected Blowing of Fuses on Transmit
Gordon Gibby
Great work , guys— thanks.
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On Dec 2, 2019, at 00:38, MVS Sarma <mvssarma@...> wrote:
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Re: CEC 5" Enhanced Nextion Files
#images
Joshi Hp
I download the latest(December) hmi file but there is a compilation error as shown in the picture.
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Re: Unexpected Blowing of Fuses on Transmit
MVS Sarma
Correct Jerry.
On Mon, 2 Dec 2019, 10:45 am Jerry Gaffke via Groups.Io, <jgaffke=yahoo.com@groups.io> wrote: If the fuse blows when you push PTT but before speaking into the mike,
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Re: Unexpected Blowing of Fuses on Transmit
Jerry Gaffke
If the fuse blows when you push PTT but before speaking into the mike,
it probably is not mike gain or the RV1 drive setting. Most likely trouble around the IRF510's somehow. ########################## You cant have all of
1. Preset gate more than 100mA drain current,
2. Hi rf drive with q90 collector preset and
3 boosted mic gain with presetbfor modulation level control.
You may have to reduce at two of the locations.
All the best
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Re: KD8CEC ‘s SWR senser
Jerry Gaffke
Kits and Parts assumes you are using an old school micro-ammeter.
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That would present more of a load than the tens of megaohms presented by the Nano's analog input pin. The TandemMatch/StocktonBridge circuit has RF going into the diodes that is proportional to the forward and reverse power. That power can vary from second to second, the 220K resistor discharges the 0.1uF cap when the power decreases. The value of the resistor is not critical, but without it it might be several seconds before the cap discharges. Jerry, KE7ER
On Sun, Dec 1, 2019 at 01:45 PM, Joel Trenalone wrote:
Also, here are the schematics for both the kitsandparts bridge (I’m using), and the home brew Stockton bridge (that Ian Lee uses in his video and description http://www.hamskey.com/2019/04/installing-swr-and-rf-power-sensor-in.html )
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