Good thought...? That feature "got" me for a minute when it first happened.
Power off reset should fix...
Woody
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On 12/12/2018 1:00, d balfour wrote: If you hold the function button down for a couple of seconds it locks the frequency. Per chance did you do that? There is a small lock symbol on the display.
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Did you / Can you check for voltage
transition at the Raduino pins 7 & 8??? If not present there,
look at the wiring to the encoder.? If present on 6 & 7,
sounds like a Raduino problem (maybe ;)?
Woody - KZ4AK
On 12/12/2018 0:44, wayne.k9qo@... wrote:
I have completed my new ubitx and it will not tune. I have checked
the messages here for this problem and have followed some of the
others suggestions by installing the new CEC software. On power
up, the display shows 7150khz. Turning the encoder in either
direction does not change the frequency. I have checked the
encoder and I get the 5V to 0V transitions on ENC A and ENC B.
pressing the encoder knob in, I get the "set tune step?" however,
I am unable to make any changes. Transmit and receive seem to be
functioning OK on the 7150khz frequency that is displayed. HELP???
_._,_._,_
--
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If you hold the function button down for a couple of seconds it locks the frequency. Per chance did you do that? There is a small lock symbol on the display.
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I have completed my new ubitx and it will not tune. I have checked the messages here for this problem and have followed some of the others suggestions by installing the new CEC software. On power up, the display shows 7150khz. Turning the encoder in either direction does not change the frequency. I have checked the encoder and I get the 5V to 0V transitions on ENC A and ENC B. pressing the encoder knob in, I get the "set tune step?" however, I am unable to make any changes. Transmit and receive seem to be functioning OK on the 7150khz frequency that is displayed. HELP???
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Nextion 2.4" display,,, Neat
A ham friend, a Bitx owner, my Elmer, KD0YTE, gave me a Nextion display for Christmas. I was surprised at how easy the install went on my ubitx v3.
A big thanks to both KD8CEC for designing such a neat product and KD0YTE for giving me the screen.
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Re: JackAl display delivery times
#ubitx
The code for doing the calibration is not trivial, as the display is not linear. That is, moving down 5 and across 4 doesn't necessarily put you on the right cursor. By the time you get to the lower-right quadrant, it's off quite a bit. We had to account for that slop in our code.
Jack, W8TEE
On Tuesday, December 11, 2018, 1:18:37 PM EST, Neil Goldstein <neilgoldstein@...> wrote:
Thanks for the quick reply Jack.??
I pretty much expected the board+BOM method, which is fine.? I've done that before. I'm patiently awaiting the availability as I'd love to play with this.? I have an unmodified EARLY uBITX that I've had wonderful results with using an AlexLoop.??
I may purchase BOTH resistive and capacitive and see how they work out.? I think the cap screen should be OK as long as we have a way to tweak the calibration.
--Neil, W2NDG, radiokitguide.com
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Ashhar as stated that he has prototype boards with the fixes that he is testing.? I have not heard of any fixes currently in production.? This was last week that I remember seeing the note from him.
I am over 65, so memory can play tricks on me at that age ;)
73 Evan AC9TU
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Attached you find one of the relays I did replace with the Axicom ones. Mine is version 3, arrived in March or April this year. I don't have a real Spectrum Analyzer but I nearly always use a SOFTROCK ENSEMBLE with it (I currently use separate TX and RX like in the sixties also during contests) and the third harmonics of the 40m on 15m was likely down just 25db or so. The Axicom relays are better.
Il 11/dic/2018 20:25, "Lee" < mr.olson@...> ha scritto: My V4 board got here today and I compared the relays with my V3.? They are the same.? I thought the new boards shipping were supposed to get new relays or is there a change on the board that fixed the problems without changing the relays?
--
Lee - N9LO? "I Void Warranties"
?
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My V4 board got here today and I compared the relays with my V3.? They are the same.? I thought the new boards shipping were supposed to get new relays or is there a change on the board that fixed the problems without changing the relays? -- Lee - N9LO? "I Void Warranties"
?
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New version is now in stock.
?
--
David
?N8DAH
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Re: JackAl display delivery times
#ubitx
Thanks for the quick reply Jack.??
I pretty much expected the board+BOM method, which is fine.? I've done that before. I'm patiently awaiting the availability as I'd love to play with this.? I have an unmodified EARLY uBITX that I've had wonderful results with using an AlexLoop.??
I may purchase BOTH resistive and capacitive and see how they work out.? I think the cap screen should be OK as long as we have a way to tweak the calibration.
--Neil, W2NDG, radiokitguide.com
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Re: JackAl display delivery times
#ubitx
Neil:
We have the board in production and we expect the board to be produced this week. It usually takes a week after that to get the boards shipped. I'm not sure how long the testing takes, as we always bought bare boards before. Still, even allowing a week for testing, it should be less than 3 weeks before we get our supply of boards. We will immediately send most of the first run to QRP Guys, holding back just enough to serve the builder's group here.
My experience with cap touch screens is that they seemed less sensitive to the exact X/Y coordinates. Indeed, cap screens start sensing a touch long before you actually touch the screen. We have a lot of buttons on the screen,
and for the 5" display, we need to read coordinates pretty closely. The difference will be evident in the libraries. I would expect users to experiment using different display (and with other features/sensors). There are also about a dozen free I/O pins, too.
Attached is a BOM for the parts that are NOT on the board. It would have cost more to have them assembled at the factory (evidently, they pose problems for pick-n-place) than to push that cost onto the user. Sorry, but we're not going to make much on this anyway and we've eaten enough of the cost already. If we sell 1000 boards (unlikely), Al and I will probably make about $1.25/hour for our hardware/software development time. Don't misunderstand me, we both consider this a labor of love and we've enjoyed doing it. That said, since everything is open source, including the DSP code, it's you smart people out there who will improve it even more.
Anyway, take a look at the offboard parts BOM. You probably have some in your junk box already. If not, buying new will add just under $13 in parts.
Jack, W8TEE
On Tuesday, December 11, 2018, 11:45:40 AM EST, Neil Goldstein <neilgoldstein@...> wrote:
Jack,?
Two quick questions, and I apologize if I missed these previously.?
1: Why resistive screens?? Can we do capacitive or does that change something on the back end?
2: When will the whole sh'bang (the boards at least) be orderable???
Thanks!
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Re: JackAl display delivery times
#ubitx
Jack,?
Two quick questions, and I apologize if I missed these previously.?
1: Why resistive screens?? Can we do capacitive or does that change something on the back end?
2: When will the whole sh'bang (the boards at least) be orderable???
Thanks!
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Re: UBITX Current Production (spur fix ?)
#ubitx
Yes, the relays now shipped could be better.
Or could be worse, it's pretty much all conjecture.
The Axicom datasheets do talk about RF isolation.
The datasheet for the new relays does not.
Most of these low end relays assume you are switching at DC or audio frequencies,
and don't bother with the extra expense of addressing RF isolation.
Jerry
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On Tue, Dec 11, 2018 at 08:21 AM, Evan Hand wrote:
It was my understanding that the significant difference was how the relays were constructed internally: the relays specified as the replacement had the contacts and wiring closer to the circuit board.? It was the physical layout that made the difference.? That would not show up in a normal relay specification.? It could even be changed if there was a "process improvement" at the relay manufacturer to change the configuration of the relay.
?
Unless you break open one of the relays, or find a diagram that shows the internal construction, there is not a way other than try them to verify that it helps in the RF feedback problem.
?
Above is my understanding; it could be wrong, so use your own judgement/research to verify.
?
Evan
AC9TU
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Re: UBITX Current Production (spur fix ?)
#ubitx
It was my understanding that the significant difference was how the relays were constructed internally: the relays specified as the replacement had the contacts and wiring closer to the circuit board.? It was the physical layout that made the difference.? That would not show up in a normal relay specification.? It could even be changed if there was a "process improvement" at the relay manufacturer to change the configuration of the relay.
Unless you break open one of the relays, or find a diagram that shows the internal construction, there is not a way other than try them to verify that it helps in the RF feedback problem.
Above is my understanding; it could be wrong, so use your own judgement/research to verify.
Evan AC9TU
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Two yeah-buts:
1.? ? Get replacement Nano's that do not have the header pins soldered in place.
The need to be installed on the "wrong" side of the Nano to work with the Raduino.
2.? ? A look on Mouser and Digikey show that most 25mhz ceramic resonators on offer
have a tolerance of +/- 0.5%.? A $2 Nano clone is likely going for the lowest bidder, as
the processor clock frequency is not very critical, could be off by more that 0.5%.
25mhz*0.5% = 25mhz*0.005 = 125khz.
So that ceramic resonator could be anywhere between 24.875mhz and 25.125mhz, maybe worse.
I sincerely doubt that having the BFO 1.5khz above the crystal filter center instead
of 1.5khz below will be much of a win here.
Though using both BFO placements does double the odds of having problematic audio tones.
So best to use clk1 to switch between LSB and USB modes, as is done in all current code.
If you have audio tones, best bet is to swap out the Nano, or somehow drag that resonator
away from 16mhz.? Moving the BFO to the opposite side of the 12mhz crystal filter is a possibility,
but involves a significant hack to the firmware.?
Adjusting the BFO a few hundred hz via the menu is likely not a good option,
will likely affect audio quality long before it moves any bothersome tones out of the way.?
This is based on my sample of one uBitx.
Farhan has seen hundreds, he may well have better advice here.
Jerry
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On Mon, Dec 10, 2018 at 11:26 PM, Ashhar Farhan wrote:
1. the raduino is shipped with a socketed nano. you can swap it for another (nano or anything else).
2. the tones are created by the variations in the 16 mhz oscillator crystal of the atmega. at times they drift downwards such that their harmonic beats with the 12 MHz BFO harmonics to create an audible tone. the way around this is to always keep the BFO further down from 12 MHz at appox 11.995 MHz so that the beat moves out of audible range.
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Unplug the raduino and connect to your pc, if you still cant read the display there is an adjustable pot on the raduino give that a tweak to get the data on screen.?
Refit the raduino and ensure you have suppy to the motherboard.
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Re: UBITX Current Production (spur fix ?)
#ubitx
I see no evidence in the HFD27 datasheet that these relays are better suited with regard to RF isolation. This post? ? /g/BITX20/message/62307?suggests that HFSignals is not shipping the uBitx with improved relays. There are a number of different manufacturers of similar low end relays. HFSignals has likely qualified several of them as a source of relays. Jerry, KE7ER
On Tue, Dec 11, 2018 at 04:13 AM, Sascha Bohnet | DL5SMB wrote:
My V3 board was equipped with the HFD27 relays.
I already took them out to switch to Axicom-
might have been smarter to check first how bad the problems is.
Good to know at least that the? HFD27 are probably an improvement.?
?
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Re: JackAl display delivery times
#ubitx
This has been posted before:
BuyDisplay.com URL for 5"
https://www.buydisplay.com/default/5-inch-tft-lcd-module-800x480-display-controller-i2c-serial-spi
?? ?Options:
?? ??? ?FFC Connection-4-Wire SPI+US$0.36
?? ??? ?Power supply: 3.3V
?? ??? ?Touch Panel: 5" Resistive
?? ??? ?Micro SD Card Interface -- not used
?? ??? ?Font Chip: ER3304-1 +US$1.30
?? ??? ?
7" display:
https://www.buydisplay.com/default/7-inch-lcd-module-capacitive-touch-screen-panel-i2c-spi-serial
?? ?Options:
?? ??? ?FFC Connection-4-Wire SPI+US$0.86
?? ??? ?Power supply: 3.3V
?? ??? ?Touch Panel: 5" Resistive
?? ??? ?Micro SD Card Interface -- not used
?? ??? ?Font Chip: ER3304-1 +US$1.30
You should also note the actual display sizes, as they are measured on the diagonal. This means that the "5 inch" display is actually only about 3" tall and less than 5" wide. This impacts your case decision.
Jack, W8TEE
On Tuesday, December 11, 2018, 10:03:05 AM EST, Chuck WB6GPO <chobin@...> wrote:
Lee,
Would you mind sharing the link for ordering the display?
Thanks, Chuck WB6GPO
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Re: JackAl display delivery times
#ubitx
Lee,
Would you mind sharing the link for ordering the display?
Thanks, Chuck WB6GPO
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_Dave_ AD0B
Lee
N8DAH
Neil Goldstein