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Re: Nextion 3.2 Display

 

Sorry to be a pedant, but that's me Allen: "their" is possessional, "there" is positional, required in this context.
73
Dex, ZL2DEX
Re: FOOD FOR THOUGHT- GOT A PROBLEM? #ubitx

 

Amen!

OIl, fresh, change often.? C150 driver.

Allison
Re: experience with Sunil VU3SUA's enclosures #ubitx

Lawrence Macionski
 

He is reputable, he is NOT Amazon Prime 2 days shipping. Good things take time..
FOOD FOR THOUGHT- GOT A PROBLEM? #ubitx

Lawrence Macionski
 

#1. let me say I've been known to stick my nose and many times my foot in place it doesn't belong.
#2 .I lurk a lot -every day read the days' mailbag and read many posts- commenting on a few.
#3. I am seeing a lot of posts where the radio all of a sudden does something unexpected when transmitting or transitioning to transmit.
????? a. No indication if the rig is on a pine board or a metal, plastic case.
????? b. Problems reported immediately indicate --- STRAY RF- IMPROPER SHIELDING- POOR GROUNDS
#4. It's actually in the rules and regulations to adhere to good engineering practices.
????? a. a 3D printed case may not work transmitting but fine for receive.
????? b. what works on 80M may not work on 20-12-10M.
????? c. what works at 5 watts may not work at 10-12-24 watts.
????? d. any mods?
#5. Before posting, as the posts are numerous and repetitive please do a little diagnostics to
???? a. better describe your problem (I have a plastic case, car battery) and environment (ground rod, open wire feed, tuner etc.)
???? b. Is it (transmit problem ) repeatable with just a dummy load.
???? c. Like the quiz show, Have you called a friend?? and has he seen the rig in action --because we have not.

Please don't turn this into yet another dreaded oil thread (Oil Thread- multiple comments (and fights) on Aircraft and Motorcycle forums when someone asks "Which oil?")

Larry W8LM-
ARRL Life Member -Licensed 386 DOG years..
?????
Re: uBitX CEC Upload

V Zecchinelli
 

¿ªÔÆÌåÓý

Thank you.? Working OK now.

73 de Vince N1VIN



On 7/3/2018 10:20 AM, Ralph Mowery wrote:

I don't know what it may be, but you are really missing something.? It should not take even 5 minuets to load.?

Check to see if you have the baud rate set to the correct value.

de ku4pt


On Tue, Jul 3, 2018 at 9:58 AM, V Zecchinelli <n1vin@...> wrote:
I am currently using Xloader up update firmware 1.08.? Has been uploading for over an hour.? I do see numbers changing on uBitX screen ie e6:f0e4e4e4.? Should it take this long or am I missing something?? I am uploading UBitX_CEC_V1.080_16i.hex.
Thanks,
Vince


Re: uBitX CEC Upload

 

I don't know what it may be, but you are really missing something.? It should not take even 5 minuets to load.?

Check to see if you have the baud rate set to the correct value.

de ku4pt


On Tue, Jul 3, 2018 at 9:58 AM, V Zecchinelli <n1vin@...> wrote:
I am currently using Xloader up update firmware 1.08.? Has been uploading for over an hour.? I do see numbers changing on uBitX screen ie e6:f0e4e4e4.? Should it take this long or am I missing something?? I am uploading UBitX_CEC_V1.080_16i.hex.
Thanks,
Vince


uBitX CEC Upload

V Zecchinelli
 

I am currently using Xloader up update firmware 1.08.? Has been uploading for over an hour.? I do see numbers changing on uBitX screen ie e6:f0e4e4e4.? Should it take this long or am I missing something?? I am uploading UBitX_CEC_V1.080_16i.hex.
Thanks,
Vince
Re: Easy, Inexpensive Cooling Fan, Excelway Case

 

Hi Arv,
Thanks for reporting back the results of your experiment.? I am thinking that you are going after a 'simple' solution where the fan doesn't run continuously.? For micro-controller control, I would switch the fan's ground (low side) with a logic level N-FET. Then I got to thinking that instead of using a controller, that one could use a simple RC circuit to control the turn-off delay.? ?I would think that during a CW transmit, that the fan should remain On, and not switch On/Off with every dit and dah.? Below is the idea for review/vetting/ or seeding another solution.? This should also be a much softer shutoff.? Little r added for discussion point of a softer start if it helps with noise.? (Of course r could be 0.)

Regards,
Gary
?

.

fan.bmp

Re: uBitxr4 audio distortion fix

 

Tried another uBitxr4 board and had the same problem.

I recommend this mod for everyone. Solder the pot and ZERO it and at low volume with the
band background noise increase the preset and you will notice the volume increasing. Leave
it a little more than the point you get max volume of noise. I am sure that will work for the
best.

Raj

At 29-06-18, you wrote:

Got back to town and plugged in the uBitxr4 and found the audio distorted.

Poking around the finals I found that the two diodes D15 and D16 gave only a drop of 1.2V total
but the final transistors needed more like 1.5V. i.e. 0.75v each.

I simply cut the track between D5 and D16 and soldered a 100 ohms multiturn preset as shown
in picture below. (Preset leads used is center and one side)

Start with the two soldered connections of the preset set to ZERO ohms.

Power on and tune to a station at low volume and slowly increase the preset till the audio
becomes clear. In my board the RX power consumption increased by 25mA at the best sound.
Just check and see that the output transistors are not getting hot.

My board sounded great with 47 Ohms between D15 D16 and I run at 13.6V. If you run at the
same supply voltage then you can try a fixed resistor. For 12V supply you could try a higher value
like 56/62 or even 68 Ohms.

Cheers

--
Raj, vu2zap
Bengaluru, South India.

Emacs! ?
Re: TX frequency? of uBitx at CWL and CWU mode #ubitxcw

hirosmb
 

¿ªÔÆÌåÓý

I am very much looking forward to your blog, Akira-san.

Please kindly post the URL here at this BITX20 ML.

Many thanks in advance.

// hiro, JJ1FXF



2018/07/03 18:07¡¢jj1epe@...¤Î¥á©`¥ë:

lan and everyone who replied me

I did not use uBITX manager.
But I have understood that using uBITX manager is essential to set? CW offset and for uBITX.

Now everything has been cleared by setting uBITX manager as follows
? ?- Enabled Adjust CW Frequency
?? - Shift Display Frequency on CWL, CWU Mode

Frequency displayed by uBITX and my ICOM rig is completely same!!
Thank you for your support!!

I have started to promote uBITX in Japan.
English as the language is the one of the big wall for most of Japanese people.
Even for me, this TX -RX frequency issue was hard to find the solution.
So I will make the article on my blog in Japanese about this topics.

73!
Akira
JJ1EPE
Re: TX frequency? of uBitx at CWL and CWU mode #ubitxcw

 

Ian :?

Yes I am currently using V1.094 beta with the Nextion 2.8" Display.

?I will upgrade to V1.095 and try that.

Cheers

Michael VE3WMB?
Smart Analog/Digital I/O Expansion and LCD Display for the uBITX. #firmware #ubitx #nano #radiuno

 

Hi,

I want to expand the amount of digital and analog I/O pins available to add enhancements to my uBITX.

To do that I created a Smart LCD Backpack to replace the commonly found ones on the inexpensive 2x16 and 4x20 I2C displays found on eBay and Amazon.

I uploaded a library to GitHub that allows you to program a Arduino Nano to emulate the common I2C to parallel backpack used on the I2C displays. The Smart I2C Backpack, additionally, allows you to read and write the analog and digital pins on the Smart I2C Display Backpack.

The package includes a interface library that you include in your code to interface with the Extended I/O functionally. Also included are two example Sketches. One is the code you program into the Smart Backpack. The other is a demo/test program you program into another Arduino and connected via the I2C buss to the Smart Backpack Display.

The Smart Display Backpack should work with firmware using standard I2C LiquidCrystal drivers such as the?KD8CEC firmware.

The code uses the following libraries:
The are all installable from the Arduino library manager, the GitHub URLs are just for reference.
SoftTimer.h ?//https://github.com/prampec/arduino-softtimer
Also requires:

LiquidCrystal_PCF8574.h

I believe these are part of the base Arduino software install.
Wire?
LiquidCrystal

Hope others enjoy this new display and I/O expander.?

Here is the link to the code.








SmartLCDandIOexpander_I2C_02.jpg
SmartLCDandIOexpander_I2C_05.jpg

Re: v4 pop-fix on a v3 board #ubitx

Don Meyerhoff
 

Good stuff. Just put one together myself. A little separate breadboard which I used a small portion so as to have room for another mod or two. Installing the Nextion 3.2 tomorrow. Love the ability to mod and work with it. Great value for the money.

73

Don Meyerhoff
WA2SWX

On Tue, Jul 3, 2018, 8:19 AM Nigel G4ZAL <nigel@...> wrote:
Forgot to mention, I also swapped out R70 from 100 ohms to 1K.

Nigel.

Re: Easy, Inexpensive Cooling Fan, Excelway Case

John P
 

On Wed, Jun 27, 2018 at 07:28 am, Jack Purdum wrote:
Is the fan quiet, or does the rcvr pick it up?
I tried a couple of fans from old PC supplies. They were all very noisy. What I did to solve the problem was to put a resistor (maybe 10 ohms; don't remember and not taking the radio apart) in series with the fan and a fairly hefty capacitor across the motor. The fan still moves more than enough air and is both electrically and acoustically quiet.
?
--
John - WA2FZW
Re: v4 pop-fix on a v3 board #ubitx

Nigel G4ZAL
 

Forgot to mention, I also swapped out R70 from 100 ohms to 1K.

Nigel.
v4 pop-fix on a v3 board #ubitx

Nigel G4ZAL
 

I added the v4 pop-fix to my v3 board by placing components directly onto the v3 board.
Start by drilling a small hole (0.7mm in my case) to the right of R70 so as to be able to fix the 2N7000 transistor.? Pin 2 of the 2N7000 is soldered on the underside of the board (ground).
Scrape a little varnish from the tracks and tin ready to fix the 2N7000.
I added some Kapton tape to stop any shorting of components.




Add the remainder of the components and run a bit of enameled wire to the trace near the raduino headers to pickup the T/R line.






Ignore the cutouts on the front of the board, I had to hack away a little to clear the 3.5mm sockets on my case (I had to add a small length of enameled wire on the underside as I had hacked through a board trace).

So far, so good with no problems to report.

Nigel.
Re: Nextion 3.2 Display

 

Hello everyone
I am interested in version 3.5 because I already have the Nextion. Thanks a lot to Allen Merrell and everyone involved, especially Ian Lee.
Michel F1GTX
Re: RFI problem at the encoder switch #ubitx-help

Dave Dixon
 

Hi Len,
?????????? From a unusually hot uk.
???????????????????????????????????????????????? My both my ubitx versions 3 and 4.3 are both ?in plastic cases and I have not encountered any problems on any of the bands I have used,.my only mod is adding KD8CEC software to one of my radios the other is on line for a nextion display and then also Ians software. Regards Dave G0AYD.

On 3 July 2018 at 09:23, <hakan.sjostrom@...> wrote:
Len,
the enclosure is metallic from amateur radio kits in India, so it should be well shielded.


Re: TX frequency? of uBitx at CWL and CWU mode #ubitxcw

Andy V. Borisenko
 

Ian,
at which address do you send a copy of the settings?
Re: TX frequency? of uBitx at CWL and CWU mode #ubitxcw

 

lan and everyone who replied me

I did not use uBITX manager.
But I have understood that using uBITX manager is essential to set? CW offset and for uBITX.

Now everything has been cleared by setting uBITX manager as follows
? ?- Enabled Adjust CW Frequency
?? - Shift Display Frequency on CWL, CWU Mode

Frequency displayed by uBITX and my ICOM rig is completely same!!
Thank you for your support!!

I have started to promote uBITX in Japan.
English as the language is the one of the big wall for most of Japanese people.
Even for me, this TX -RX frequency issue was hard to find the solution.
So I will make the article on my blog in Japanese about this topics.

73!
Akira
JJ1EPE
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