开云体育

Jim,

If Xloader just sits there, there are two possible reasons.
1. Most likely is that it is really the old bootloader and you need to set the baud rate to 57600. If you have the Arduino IDE installed, you can open up the "blink" example and see whether you can download it to the nano by either selecting old or new bootloader.
2. The selected device?in XLoader is set wrong. You want Duemilanove/Nano(ATmega328)

Or it is a dead nano...? ?I assume you tried on all three? No reason to solder the pins, just see if XLoader can download anything to the Nano.? The other thing I have recently seen is that there are multiple source code repositories calling them "XLoader". When I tried using XLoader on a new Windows laptop, I had installed the wrong one and had to go figure out which is the one I should be using.?

Can you download CEC 1.2 to the Nano? If not, then it is definitely either a XLoader config issue or a bad nano.

How did you figure that it was ok at 115200??

73
Mark


AJ6CU
KD8CEC 2.0, Nextion Screens,? and open source uBITX Raduino boards for Arduino IOT, BLE, RP2040, Teensy 4.0, and Raspberry Pi Pico
https://github.com/aj6cu

I occasionally have run into a situation where the V6 is left in transmit mode, but no actual signal is being transmitted because the laptop locked up.? ?In my case it appears there is an issue with RF getting into the laptop, which I'm still trying to track down.? Recycling power on both laptop and radio resets things.??
Rolan N8LOV

Hi Mark,

I am going to display my ignorance here as this is all new to me.? ?I have watched your video on how to try CEC V2 without risking the current system, and would like to do? this.? ?I bought the package of 3 Nanos you had linked under the video, and have installed uBitx Settings editor.? I can read from my current nano (from the uBitx) just fine in your program.? ?However, I haven't been able to do anything with any of the 3 nanos I purchased.? They show up in Windows device manager, and I managed to connect to all of them in Xloader, but that is all.? ?The ones I received work at 115200, but that is as far as I get.? I click on "upload" in Xloader and it just sits there forever.? ?I try reading from them in the uBitx Settings Editor and it says "Timeout reading from serial port"? Am I missing a step or two before trying to read from them or do anything with them?? ?Is there something that must be installed on them before they will work with Xloader?? ?I wonder if you or someone else could give a step by step guide to preparing a new nano so it can install the new CEC V2?? ?

73,
Jim? w8ykg

Joel,

I also remember reading the post saying there would be a process to calibrate the DE with V2 software.? I assume he referred to a DE with the SWR/PWR sensor.? He did post that.??

As far as I know, there is no way to set the TX level on the original DE running V2 software other than to set each band scaling value.

73
Evan
AC9TU

Evan,

No, I only ran txcal once after upgrading to V2 software before thinking about it. I do remember Farhan saying he was going to make some instructions for us DE users who upgraded to V2 to calibrate power, I assumed they would be different from the original instructions he gave on the DE, maybe not.

Joel
N6ALT

Joel,

I thought that txcal required the SWR bridge to be installed. ?How else would the software know when the power out was correct?

Are you running txcal each time? ?If so, that will reset the values to whatever limit that is in the program, not the nominal 40watts.

I suggest that you copy the hw_settings.ini file over the file in your current data folder. ?Those are safe values from Asher Farhan as a starting point. ?Then try one band measuring and adjusting the output to see if the value holds.?

The spreadsheet was a way to capture all of the bands and keep track of adjustments as you must reboot each time you make a change. ?You do not need to use it. ?To understand the process, try getting just one band to be correct with 40 watts out at a drive setting of 100. ?The formula is new scale value = old scale value * desired power / measured power.?

73
Evan
AC9TU

Hi Evan,

There has got to be a easier way to do this. The whole spread sheet thing doesn't make sense to me at all, the lower percentage number is how I lowered it with the V1.? software so I get that. I had run txcal on this right after upgrading to V2 software and I guess it changed all those numbers so I changed them all to the values you included in your last post and then started decreasing the lower bands to start with. What i am noticing is the power level is not consistent, I set the drive level say 40 and it puts out 50 watts, as I unkey and key back up again it all the sudden jumps up to 80 watts, then it will show 80 watts every time i key up until I lower the drive level again, isn't there a way to use the TXcal command and adjust it with the MFK per band like on the V2?
Another idea, can you post your final settings? Maybe I can use them as a starting point to get close. Meanwhile this thing is making way too much power to even try to use it for TXing. Thanks for your help.

Joel
N6ALT

When in transmit, the TX lamp flashes on then off repeatedly.
Does this tell us something of what may be wrong?
Bill

Hi Joel,

I have found that you adjust the power levels by editing the hw_settings.ini in the /home/pi/sbitx/data folder.

1 - I would first verify that each band can operate safely below a max of 50 watts.? I did this by setting up for straight key CW, measuring power with my SWR/PWR meter, and increasing the drive until it reads 100%.?

2 - Note the power on the watt meter for the band and enter it in the spreadsheet as the current power.

3 - After you have measured all the bands and recorded the power levels, use the file program on the sbitx to edit the hw_settings.ini file.

4 - For each band, enter the scale= value from the file into the "Current Setting" column of the spreadsheet.

5 - The formula will calculate a new setting for the multiplier

6 - Replace the scale= value with the current value from the spreadsheet.

7 - Save the file, and shut down the sbitx with the shutdown option from the main menu to minimize the risk of corrupting the microSD card.

8 - Power cycle the sbitx.

9 - Copy the New settings VALUES (not formulas) to the "Current Setting" and rerun the test sequence.

The process is not linear, and it took me several runs through the process to get it where I wanted it.? Note that I never could get higher bands above 20 watts.? I would suggest using the Desired Power levels in the spreadsheet unless someone has better information on what is a good value for each band.


If the drive can not be increased to 100 and stay under a safe power (for short times, it can go over 40 watts), then note the band and drive level.? You will need to adjust this band lower by at least 20%.? Do this for all bands.

Here are the contents of the original V2 hw_settings.ini file:
==========================================
==========================================

Use the above at your own risk.? Always start with lower values and short transmissions to protect the finals.
73
Evan
AC9TU

Farhan had mentioned a couple of weeks ago that he would provide a detailed procedure for calibrating the power output on DE radios running V2 software without the SWR board installed, has this happened and I missed it? My DE works great on the V2 software but the power levels are way off, a couple of watts out on 40 meters and 40 watts out on 20 meters with 10% drive, I'm afraid of blowing the finals,

Joel
N6ALT

Having some weekend fun with an stripped down alternative Web UI with a monochrome color scheme.

Got it from Thomas George of HFSignals.

On Fri, Jun 9, 2023 at 09:41 PM, W6LKB wrote:

I am a DE user and run both FT8 (via WSJT-X) and JS8Call. Let me know if you want my configuration settings.

It would probably help others if you could post the configuration.
?
--
Gyula HA3HZ

On Sat, Jun 10, 2023 at 08:47 AM, Raj vu2zap wrote:

Folks, is any of you have an open V2, please reply with a pic of where the RTC plugs in?

This test peice came with it rattling inside.

/g/BITX20/message/102612
?
--
Gyula HA3HZ

Folks, is any of you have an open V2, please reply with a pic of where the RTC plugs in?

This test peice came with it rattling inside.

73 Raj vu2zap

Jack,

I could not sleep this evening, so played with the sbitx code.? It turns out that si5351v2.c line 45 needs to be uncommented, and line 46 commented.? Then you get to play with the value of the crystal.

The value provided was way too high for the Si5351 board that I had.? The final value after playing with it is 25002715.? I used WWV to measure the frequency.? The band scope and waterfall make it easy to see the center frequency.? You line up the beak to be on the 10MHz readout.? This was easiest for me to set the frequency span to 0 to 2400 Hertz.? The red line is then centered on the peak of the WWV signal.? I multiplied the error by 3.75 and then added or subtracted to the setting depending on the error being high or low.

I had to reboot, shut down, and restart several times to get the setting to take.? That does not make sense to me as I did build the software after I changed a value.? At times there was no change.? On other reboots, the audio codec would not start properly and caused the sbitx program to abort.? There are still mysteries about this design that I do not understand.

I am going to work on the PWR/SWR meter next.? Once I get that working and calibrated, I will test the rig over time to see if the TCXO is needed for how I use the radio.

73
Evan
AC9TU