The LICW Refrigerator Magnet is printed on flat magnetic material, the very same magnetic sheet stock that is used for all those useful calendar magnets sent by your favorite insurance companies.? The LICW Magnet is a generous 3-2/3” in diameter and can easily hold a logbook page or two in place.? The Club callsign, W2LCW, is proudly displayed on the magnet face; for an extra charge, your callsign -- and LICW number, if desired -- can be inserted in place of the club callsign.? The W2LCW callsign has no member number listed underneath.

The magnet is available in three styles: a white background (looks best on dark surfaces), a grey background, or a black background (looks best on white or light-colored surfaces).

To get your LICW Magnet, send your order via Paypal to wb2gxm<at>gmail<dot>com. BE SURE to include a note with your name, call, and full mailing address including zipcode and country. All money sent without a full mailing/shipping address or without complete ordering instructions will be refunded.

• Send $6 for each standard Club magnet with callsign W2LCW. Indicate the number of white, grey and/or black magnets in your note;

• Send $11 for each magnet customized with your callsign (and member number, if desired). Indicate the number of white, grey and/or black magnets in your note. Please supply your member number, we will not look it up for you;

• Add $1 to your order for shipping outside the US. Postage is included in the magnet price for mailing within the US only.

When ordering via Paypal, please use the "send money to family and friends" option.

Wishing all of you the best on your CW journeys!? 73 - WB2GXM

Perhaps I've missed it, but in the past discussions about sBitx clocks being off, I don't recall seeing this issue: the time displayed in the sBitx app title bar is approximately 5-6 seconds behind the Pi clock. The Pi clock is sync'd via NTP and matches both a WWVB desk clock, as well as web site time.is. I haven't used the rig in a few weeks, but don't recall noticing the error then (but I could have missed it). The error persists through reboots. I also used JJ's Toolbox to downgrade to 3.01 and 3.00 versions, with the same error. I also used the Toolbox to 'install latest version, and it doesn't make a difference.

It's almost as if the sBitx clock is reading the Pi clock, then applying a peculiar offset, or freezing for a few seconds, then running.



Some background info, but I don't think this should matter. Per this document (/g/BITX20/files/SBITX-RTC-GPS.pdf) I removed NTP, and installed chronyc, which incorporates NTP as well as having more features. This was to enable the use of a GPS to set system date & time. It works well, as evidenced by the Pi's clock being correct. However, since NTP isn't running by itself, the sBitx Toolbox 'Time Sync' reports the time isn't synchronized, though 'chronyc tracking' clearly shows that it is.

I also cannot get any FT8 decodes, despite plenty of strong signals. I'm guessing this is because the received signal start & stop times are too far off from the sBitx clock, so the software is confused.

Suggestions?

73,
Mike KW1ND

If you can get anything to work, use it. I don't think anything does, but that's me

Barry,

The voltage is between 5.25 and 5.4 volts.? 5.27 is good.

73
Evan
AC9TU

Group, what is the target voltage for the little buck regulator for the 5v bus? Mine is set for 5.27V.
I THOUGHT I read someplace, which I cannot find again. the voltage should be 5.6V??
TU
Barry
K3BO

Hi All,

I'm running uBITX_6_N8ME_Cosmetic_Mods.hex firmware on my uBitx V6, I love the looks of it and the fact that I can store some memories however, the calibration setup is just totally broken. If it wasn't for the calibration problem this would be the perfect firmware for me. Does anyone know if JJ ever released a fixed version of this, if not then what version of firmware is stable enough to use and calibrate?

Joel
N6ALT

OK, I resolved this. ?Traced it to the default screen resolution as set in the raspi-config being something other than default. Changed it to default and touch is now calibrated.

?I don't think I ever got xinput_calibrator working. But I really don't care now that the touch on the touchscreen is where it should be...

?73
?Mark
--
AJ6CU/7
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

Hi all -

Continuing to progress with the homebrew SBITX -? I tuned up the final so I am getting about 5 watts out clean.? I had the bias too low for the RD06 that I am using for the final PA.? It turns out it pasy to look at the data sheet.? Now on to the next issue.? I did make one succesfull FT8 contact - but only one.? So I started looking at the signal out and it looks quite noisy.? ?Still debugging the mic circuit so I decided to try CW mode, from the built-in FlDigi keyer.? I get very scratchy side tone audio - but its also noisy on the scope attached to the output of the final amp,

where you can see and hear what I am talking about...? ?

What do you think?

73,
Dean
KK4DAS

On Fri, Feb 23, 2024 at 09:41 AM, Ashhar Farhan wrote:

Have you added the bias resistor needed for the electret mic to operate?

I built the audio anp directly from the schematic. It looked to me like RD21 at 10k was all that was needed.? What else do I need?

Gyula,

Thanks. To clarify your comment, are you referring to the reported min/max being the default when running input_calibrator and not picking up what is in the 99-calibration.conf file?

?I tried some larger and smaller x/y in that file and nothing seems to make an impact. The cursor is always to the right of the point I touch.

?73
?Mark
--
AJ6CU/7
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

Hi Rafael,

No dude, it’s you. You suck and it’s not going to work. Go back to the icon you already have and remember, “computers and radio have never worked for you and never will. Save the frustration and use something else.”

Cool. Lets us know! Remember that if you are using Farhan's sbitx reference implementation, edit the mixer code to use the line instead of the mic input. Or just play with alsamixer (and any audio recorder) at first to see if you can read the signal.

Cheers,
Rafael

Mark,
I mean the selected area is bigger than what was produced on the screen. try to select a smaller area.
--
Gyula HA3HZ

Charudatt,
You solved the smaller size, I think single-lane version, skillfully. Since I have some parts that are needed here, I would like to build it. If you have a spare set of pcbs, I would buy them. I mean the motherboard and the additional filter. If possible, in a soothing color (blue is suitable). If you reply, choose the direct message for this post.
--
Gyula HA3HZ

Hello,

Good to know that this is not your usual radio. This is an RPi controlled sdr radio, the soul of which is Raspverry pi 4B.
It should be noted that it uses Raspbian 10, i.e. Buster OS, which works a little differently than the usual PC.
Here you have to wait until the time noted at the previous shutdown changes to the current one, which can be up to two minutes depending on the server.
Since it's a tiny computer, you have to wait for it to recover.

I have been using it since mid-November 2023 in ft8 mode with more or less success.
Since I've had it since last April, I made some hardware modifications, but due to lack of antenna and free time, that was all I did.
The software changed to v3.0 in mid-November 2023, which I use on the gtk-ui screen with the 7" LCD display.
Fortunately, I have some active programmers who have made changes, so I use v3.02.

What I've experienced is the recommended thing when you first turn it on:
Always use a current-limiting power supply. In my case, the output stage is FET IRFZ24Z, which is more sensitive to the input voltage,
so I use it from 12.5V and limit the current to 6.00A.

There are currently over 1600 FT8 QSOs from 99 dxcc areas.
My output power is 15 watts at 7 MHz, 20 watts at 14 MHz and 10 watts at 21 MHz.
Since my antenna is a vertical inclined loop antenna sized for 7MHz, I can use it on these bands.

It's important to treat the device like a male egg.
So he can be sensitive to things if you don't treat him like that.
You need to learn the access options of the RPi OS, learn to use the File Manager and your life will be easier.
If you are interested in what I changed, you can find it in the forum search in the messages.
--
Gyula HA3HZ

开云体育