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Date
Re: GPS time synchronization with several Pi's at different locations.
pico second accuracy is not realistic. Light travels one third of a millimeter in a picosecond. You can get down to microsecond range, but you need to worry about wire lengths, capacitance of lines,
By Willem Schreuder · #9334 ·
Re: GPS time synchronization with several Pi's at different locations.
You want GPS with PPS like the DRAWS? HAT (see: http://NWDigitalRadio.com/draws) Or a GPSDO
By John Hays - K7VE / WRJT-215 · #9333 ·
Another DMR giveaway ... this time the new mobile AnyTone AT-D578IIIPRO Tri-Band DMR due out soon...good luck
Here is a link to the sweepstakes with no obligation... GL https://wn.nr/vfg4kB 73, Howard
By Howard Waxman, WZ4K · #9332 ·
GPS time synchronization with several Pi's at different locations.
I want to synchronize multiple raspberry pi's where each has it's own gps device. They need to be extremely accurate. Something in the pico seconds range. I have a cheap gps-usb device from Amazon
By Jeff Estal · #9331 ·
Re: partition for lubuntu from previous ubuntu
You can just overwrite the existing partitions. No need to make a new one. A new installation will reuse the SWAP partition if it finds one. Nigel A. Gunn, 1865 El Camino Drive, Xenia, OH
By Nigel Gunn, G8IFF/W8IFF · #9330 ·
Re: partition for lubuntu from previous ubuntu
Hi Don Since this is a Pi can you take the micro SD card and put it in a USB adapter and use another PC booted up on Gparted and see the SD card partitions, if so then you can shrink the partition
By Marty Hartwell · #9329 ·
Re: partition for lubuntu from previous ubuntu
Marty, thanks for the note.? I did get lubuntu installed and working.? I just had to find my boy bits to make new partitions over the old ones.? I didn't see any way to re-use the existing Ubuntu
By Don - KM4UDX <dontAy155@...> · #9328 ·
Re: partition for lubuntu from previous ubuntu
Ok one thing is the Ubuntu for Raspberry Pi is different from the Ubuntu linux, at least that is my understanding. If the Lubuntu isn't designed for the Pi I don't think it will work after it is
By Marty Hartwell · #9327 ·
KD9MDL initial email
Thank you
By Bill Lamm · #9326 ·
Re: partition for lubuntu from previous ubuntu
Dan -- yes, I ended up doing as you suggested. I still had to go through the partition process. Which freeked me out a bit, but you set a fat32 primary with root/efi (or close to that) with a flag of
By Don - KM4UDX <dontAy155@...> · #9325 ·
Re: partition for lubuntu from previous ubuntu
Personally, I¡¯d get another card and install new other OS fresh. That way you have the other card to fall back on. Dan -- Sent from my iPhone. Please pardon any mispelings or errors.
By Daniel Holmes · #9324 ·
Re: partition for lubuntu from previous ubuntu
My first question is ¡®WHY¡¯ ? K6acj
By Bill P. · #9323 ·
partition for lubuntu from previous ubuntu
So ubuntu was working okay with fldigi and wsjtx. I'd get the occasional lockups, but a reboot and I was good to go.? ? So, I figured I could try a "lite" OS, and lubuntu looked like a great option.
By Don - KM4UDX <dontAy155@...> · #9322 ·
Re: Raspberry Pi 3 + TNC-Pi issue with serial port
Still not solved, always investigating :-(
By js8call@... · #9321 ·
Re: Fan SHIM for Raspberry Pi
While I am currently a lurker, I am following not just because I enjoy the the thrill of victory... and the agony of defeat. Maybe not quite that bad, I hope. $70 is steep relative to ludicrously
By Jeff AE8W · #9320 ·
Re: Fan SHIM for Raspberry Pi
Hello James, While that looks like a very nice case, there is ZERO chance I'm going to buy a $70 case for a $35 computer. Btw, there are other aluminum heatsink cases out there but this is the
By David Ranch <dranch@...> · #9319 ·
Re: Fan SHIM for Raspberry Pi
You are better off to buy an Open Sheild Aluminum case from Ben. He is working on a top cover that the TNC-Pi will fit under. Tell him James VE7HJ sent you. [
By James Johnson · #9318 ·
Re: Fan SHIM for Raspberry Pi
Hey Larry, Thanks for the comprehensive post! I've been thinking of buying one of these units too but the use of the I2S pin is a killer for me as I need that bus for the FePi HATT. So, I guess
By David Ranch <dranch@...> · #9317 ·
Re: Raspberry Pi 3 + TNC-Pi issue with serial port
I had a problem that pitnc_getparams would not work if the ax.25 service was running. Since I have ax.25 set to autostart, I have to stop the service before I run pitnc_getparams. -- Bob AF9W
By Bob AF9W · #9316 ·
Re: Raspberry Pi 3 + TNC-Pi issue with serial port
I have the same problem with Pi 3 and a Pi 4. James VE7HJ To: "RaspberryPi-4-HamRadio" <[email protected]> Sent: Thursday, October 10, 2019 12:40:36 PM Subject: Re:
By James Johnson · #9315 ·