Re: C4 on my Raduino board was damaged
Should be fine, just use a bit extra solder to help with the size difference.
73 Nick VK4PLN
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Re: KD8CEC - Nextion Display - IAN questions
Gary,
Here some info :
The 2.8 will work fine and so does the 2.8 E... We also have su The battery is not required but if one is installed it keeps the settings of the RTC going even when power is disconnected. The battery is cr1220
When running the editor or installing the
ubtix_28_E.tft
file you choose the one that describes your board.
Support for the 3.2 and 3.2E - Allen, KN4UND? has done some mods and up-scaled the screens to support 3.2? ?- looks great
Release should be soon --- but only Ian knows when..
..Joe VE1BWV
On Mon, Jun 18, 2018 at 5:49 PM Mike Woods < mhwoods@...> wrote:
The battery is for the Real Time Clock - not required at this stage.
Yes E version of TFT file is for the enhanced version.? The functionality initially will be identical for both standard and enhanced versions of the Nextion.
Mike ZL1AXG uBITx.net On Tue, 19 Jun 2018 at 8:06 AM, Gary Shriver < gshriver@...> wrote: Ian (and the group)? In great anticipation of running the Nextion display on my uBitx, I purchased a 2.8¡±display on ebay and it arrived today.? I ordered the ¡°Enhanced¡± version and I found a lithium battery socket on the board.? Do I have to run a lithium battery for this board to work?? I figured it would be powered by the uBitx but was wondering if I had to have the battery installed for it to remember the settings I upload to it.? If the battery is required, does anyone know which battery it calls for?? Nothing on the board and no instructions came with the board so I¡¯m in the dark on this one.?
Also Ian,? would I use the GUI firmware ¡°ubtix_28_E.tft¡± file?? I was thinking that the ¡°E¡± was for the enhanced version of the Nextion board.?
Also, do you have any idea when the 1.09 firmware version is going to be available for download?? Can you tell I am really excited about this mod??!!!?
Thanks for all you do Ian, U-Da-Man!? I haven¡¯t had this much fun in years.?
73-Gary
KC6SWL
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C4 on my Raduino board was damaged
?Hello, I have a question for the smd experts out there.
I received my ubitx today and upon inspection found that?C4 on my Raduino board was wiped out. The solder pads look ok.?
The schematic shows .1 uF, they look to be size 1205. I have some .1uF 0808 size that are smaller but look they would just bridge the pads.
Is this ok or should i just get some in the correct size??
Brad
AB8NO
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Re: Homebrew from scratch
#ubitx
Oh yeah. Thats great. The modular design seems to be the way to go. It would be great if you could send me the files at woolfbrebner@.... I'd like to look at them. Thanks!?
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No offence taken.? I rather like?junk.
I've got several Harbor Freight meters here, nice to have them within reach in the vehicle,
around ham gear, at the off grid power system, to give to people having trouble with their
electrical appliances, ...? ? They are usually about as accurate as any other meter.
They are cheap, sometimes free.?
And cheaply made.
The switches can wear out with use.
Feed the mA or Ohms settings a few amps, it will fail and read incorrectly.
I've had several fail for various reasons.
I also have a decent meter with a few more features.
It does have better protection, is auto-ranging, has a beeper, backlight, measures capacitance, looks cool.
But for basic stuff, the HF meters work just as well.
Jerry
toggle quoted message
Show quoted text
On Mon, Jun 18, 2018 at 02:00 pm, Ryan Flowers wrote:
I went through the same agony in making a decision, and have been VERY happy with mine. The Ammeter is wonderfully accurate too. The harbor freight meters are?junk sorry guys. I don't trust them.?
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Re: No S-Meter nor callsign showing in KD8CEC
#ubitx
Glad that helped you.? I don't know much about the program, but compaired yours to my ubitx memory manager.? I am using the AVC board that Kees is shipping with the purple wire (think that is the color)? hooked to it where the jumper pins are.? I think that I measured about 4 volts max out of that junction. Think I had a setting of about 217 in the highest box and less in the others.? I so have test gear and set it so that 50 uV was all the bars before the + started.? That did not seem to work too well for me, so I just started putting in numbers to what looked good to me.
73 de ku4pt
On Mon, Jun 18, 2018 at 6:37 PM, Sascha Bohnet | DL5SMB via Groups.Io <saschabohnet@...> wrote: Thanks Ralph, that was the push into the right direction. The "ST" vanished and I got a single dot on a powerful AM broadcasting station.
Thank you .
I have to fiddle a bit around with the values and probably the wiring. Seems that though i put S1 to value 1 no ham radio station could reach that
- only commercial radio. This needs further investigation.
_
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Re: No S-Meter nor callsign showing in KD8CEC
#ubitx
Thanks Ralph, that was the push into the right direction. The "ST" vanished and I got a single dot on a powerful AM broadcasting station.
Thank you .
I have to fiddle a bit around with the values and probably the wiring. Seems that though i put S1 to value 1 no ham radio station could reach that
- only commercial radio. This needs further investigation.
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Re: uBitx has a bit too crispy / semi-distorted audio even on low signal levels
#ubitx
#ubitx-help
On Sunday, June 17, 2018, 11:33:28 AM PDT, ajparent1/KB1GMX <kb1gmx@...> wrote:
Rather than sweep it with SA I used a noise source at the antenna and looked at the audio out with an audio FFT program (windows people use spectran).? You can also use that to set the BFO. THe Elecraft K2 builders have used that trick for years. Allison As an alternative, Dell Inspiron 1100 series > Slackware 14.2 (32 bit) > Wine 2.21 > Spectrogram 5.1.7 The (hopefully attached) picture shows my bitx as it was recieved from the 'factory'
Jim
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Re: uBitx V4 linearity mod in final audio amplifier
#ubitx
On Monday, June 18, 2018, 7:27:20 AM PDT, ajparent1/KB1GMX <kb1gmx@...> wrote:
?However the one I use when not using? LM386 is the circuit on page 1.12 figure 1.17 in EMRFD. The EMRFD design has a number of features that make it desirable, actively set bias and feedback being significant. It always works when I build it and? its clean sounding.?? Allison I second this ....Not hi-fi, Just works well
Jim
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I have a new (upopened) uBitx which I ordered as I started working on my first unit. The is a version just before V4 and has the socketed audio power amplifier.
Eyes were bigger than stomach and it's clear I won't get to this second unit for several months.
Therefore, I am happy to ship this unit to anyone who can use it for $95 with free USPS shipping in the US, paid to my PayPal account.
I'll pick up a new one when/if I start a second system.
73,
Paul K2AYZ
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Re: Help with AGC kit wiring
OK, a picture it is. I would be more inclined to move the AGC board to the right, near K3     . This shows the AGC and uBITX boards parallel (second option in #7 of my note below).
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Re: No S-Meter nor callsign showing in KD8CEC
#ubitx
In the memory manager under User Interface I do not have anything checked before the S-meter. Try unchecking the Always Display Call and Scroll Display.
de ku4pt
On Mon, Jun 18, 2018 at 3:54 PM, Sascha Bohnet via Groups.Io <saschabohnet@...> wrote: Yes, the firmware I have in use is UBITX_CEC_V1.080_16P.hex - the standard display.
I did activate the S-Meter in the Memory Manager (I am using uBITX_MM_V1.081 here).
I have attached my configuration file. Maybe there is something what I am just overlooking.
The values which have added for S-Meter steps are fictional - i wanted to do the calibration later with my lab equipment.
But I can read out the ADC values of A7 and I get always changing values between 30 and 190 if i tune to an AM Broadcasting station.
As these values are withink the steps I defined, i think something should be shown. Or could it be that the values are changing too fast?
I have also attached a picture of the wiring of my ND6T AGC_KIT Wiring. I think I connected it properly but maybe I am wrong.
However I think the mistake is somewhere within the software. Instead of the S-Meter in the right corner ?
I just get shown "ST" which i think is short for "XXX Hz Tuning STEP", right?
And somewhere my Callsign should also scroll within the screen with these configuration, or am I wrong?
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Re: KD8CEC - Nextion Display - IAN questions
any word on when 1.09 is going to be ready to download?? ?
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Re: The BITeensio board is here.
#ubitx
Jack, sorry I'm slow getting back to you on the video microscope. My bottom line opinion is that you save the $60?and put it towards something better.
I bought one of these from Banggood back when it only came with a suction cup style mount. It was so unstable for taking a photo that I disassembled the unit and added an external pushbutton on a cable. Later they introduced the aluminum stand and I bought one. With that it at least made it usable.?
I found that there didn't seem to be any difference in the resolution settings from 5mp down to 1.3mp photos and if I tried to take photos in the 5mp setting that about half the time the unit would freeze and I had to hit the reset button. So I just left it in 1.3mp. So strike one against it, better to take photos with my cellphone! Next the display screen, it's contrasty, poor color saturation and low resolution. So you might use this for some inspection work but I sure wouldn't use it for actual solder work. Strike two, better to use a jewelers magnifying band that I've used for years. Last but not least is the integrated light, which is not bright enough to adequately illuminate the subject without being extremely close. A couple of the photos on the shared album where taken while holding a strong flashlight to the side. There's one taken with only the integrated light and another with the flashlight. I'd thought about adding side lights on both sides of the unit to get adequate balanced lighting.??
This link will take you to a shared album with some photos that hopefully give you a visual idea of what I'm talking about.
Mine has firmware version 1.3 and that appears to be latest version. So nothing has been done to fix any of the flackyness. If someone else has purchased one recently and check their firmware version it would be interesting to verify.
Roy WA0YMH
On Sun, Jun 17, 2018, 8:31 AM Jack Purdum via Groups.Io <jjpurdum= [email protected]> wrote:
Has anyone tried this type of scope:
(eBay 352344602558)? For $60, I'd be very interested if it works.
Jack, W8TEE
On Sunday, June 17, 2018, 1:16:28 AM EDT, Kevin Luxford < kbgluxford@...> wrote:
To my dear XYL's chagrin, I have just purchased a stereo AmScope SE400-X
microscope with fixed 5x or 10x magnifications (depending upon the
eyepice selected).? This has a 9 inch distance to the work object and a
wide field of view, so very little chance of burning one's nose with the
soldering iron. But USD200! + freight down here to Oz.? However it
provides a stereo view of the pcb with great clarity.? I understand that
freight to CONUS is free. Usual disclaimers.
73 all,
Kevin VK3DAP? / ZL2DAP
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Audio feedback during transmit?
#ubitx
I'm having audio feedback during transmit through my external speaker.!? I have the issue even with a dummy load.? I hear my voice (distorted) on the receive side when transmitting on any band. Anyone else have this issue?
Thanks,,
Jim W0CHL
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Re: KD8CEC - Nextion Display - IAN questions
Not the cheapest but it got here in three days!!
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Mark,
I went through the same agony in making a decision, and have been VERY happy with mine. The Ammeter is wonderfully accurate too. The harbor freight meters are?junk sorry guys. I don't trust them.?
I wrote about my search and why I chose the one I did on my blog. $20 was all that I needed to spend:
--
Ryan Flowers - W7RLF
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Re: KD8CEC - Nextion Display - IAN questions
The battery is for the Real Time Clock - not required at this stage.
Yes E version of TFT file is for the enhanced version.? The functionality initially will be identical for both standard and enhanced versions of the Nextion.
Mike ZL1AXG uBITx.net
On Tue, 19 Jun 2018 at 8:06 AM, Gary Shriver < gshriver@...> wrote: Ian (and the group)? In great anticipation of running the Nextion display on my uBitx, I purchased a 2.8¡±display on ebay and it arrived today.? I ordered the ¡°Enhanced¡± version and I found a lithium battery socket on the board.? Do I have to run a lithium battery for this board to work?? I figured it would be powered by the uBitx but was wondering if I had to have the battery installed for it to remember the settings I upload to it.? If the battery is required, does anyone know which battery it calls for?? Nothing on the board and no instructions came with the board so I¡¯m in the dark on this one.?
Also Ian,? would I use the GUI firmware ¡°ubtix_28_E.tft¡± file?? I was thinking that the ¡°E¡± was for the enhanced version of the Nextion board.?
Also, do you have any idea when the 1.09 firmware version is going to be available for download?? Can you tell I am really excited about this mod??!!!?
Thanks for all you do Ian, U-Da-Man!? I haven¡¯t had this much fun in years.?
73-Gary
KC6SWL
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Re: Help with AGC kit wiring
Just noticed I forgot a picture.
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Re: Transmit indicator light.
Roy? WA0YMH
Yes.? It works fine with just a couple inches of twisted hookup wire between toroid
and LED.? Adjust the number of turns for slightly less than full brightness at full
power.? FT37-43 cores work well, but for 40M you can use one of the clip-on ferrites
or the green core liberated from a dead CFL light bulb.?
This is not a particularly new or original idea.? It has been floating around the airwaves
for many years.?
Arv? K7HKL
_._
Arv, so you have used this method in a QRP transceiver? Did you run the wire to the LED as a simple twisted pair or a piece of mini coax?
Roy WA0YMH
Roy WA0YMH
Probably could use a diode rectifier and filter cap at the toroid location and run
DC to the front panel LED.? I have never tried that because radiated RF inside
the chassis has never been a problem.
Using a rectifier and filter cap could also let you measure RF current on an ADC
input of the Arduino.? Interesting thought that if you measure RF current and RF
voltage at the antenna jack it might be possible to calculate antenna impedance.
Arv? K7HKL
_._
The following is a question not a statement.
Typically the ant lead is at the back of a radio case and the LED indicator would be on the front panel. Wouldn't running the wires feeding the LED that distance cause a potential of rf radiation into the radio?
Roy WA0YMH
On Mon, Jun 18, 2018 at 8:07 AM Praba Karan < vu3dxr@...> wrote: Circuit diagram to enable this idea?..
On Sat, Apr 21, 2018, 3:51 AM Don, ND6T via Groups.Io <nd6t_6= [email protected]> wrote: In my opinion, the very best LED transmit indicator was the one that Derry Spittle (VE7QK [SK]) used in his Epiphyte QRP SSB series. That was just a 470 ohm quarter watt resistor through a small toroid and attached to a panel-mounted LED at each leg. The lead to the antenna passed through next to that resistor. That was it! When RF went to the antenna, it lit. You could easily tell if you were speaking loudly enough into the microphone, etc. Fast response, little panel space, and EASY. 73, Don
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Nick VK4PP
Paul Galburt - K2AYZ
