Thanks Don. I'be only flown fixed wing RC, so am not familiar with how powered lift devices are managed. The ESCs I've used reduce or cut power to the motor when the battery gets low. Since servos are connected to the battery directly, they continue to function after the prop stops spinning. It makes it easy to glide back for a battery swap if one loses track of time.

Andy

On Sun, Nov 27, 2022 at 05:38 AM, Tom, wb6b wrote:

I ruin my own VOIP server on AWS for one of my phones.

This was meant to be:?
I run my own VOIP server on AWS for one of my phones.

Although with the steep learning curve and trials and tribulations I had getting VOIP working the first time, maybe "ruin" is not so far off.

Tom, wb6b

On Sun, Nov 27, 2022 at 12:40 AM, Tom, wb6b wrote:

The RigPi and the open source ESP32 sound and sound over the internet library I linked to previously could be of help if you are going to create your own audio software application.

Hi,

Was doing some more reading on RigPi. Here is a page that talks about how the internet audio works in RigPi.



It looks like to transport the audio over the internet, for remote operation of your station, RigPi is using "Mumble Voice Chat".

Here is a link to Mumble:


Apparently gamers like this protocol to talk to each other because it has low audio latency. This may be a step up to a more modern web/browser friendly protocol. I believe echo link, for example, is based on older VOIP protocols. Although I believe there are now browser clients for VOIP. I'm not a VOIP hater. I ruin my own VOIP server on AWS for one of my phones.

Tom, wb6b

On Sat, Nov 26, 2022 at 04:08 AM, kalpak mukhopadhyay wrote:

I have my own raspberry pi and also proxmox vm through which I passthrough the soundcard and usb cable for wsjt-x. However, I want something for SSB phone as well.

The RigPi software should let you do that. The source code is supposed to be out there, somewhere, if you want to modify it to use standard USB sound dongles. Otherwise you could look for a sound board for the Raspberry Pi that uses the same chip as the precompiled RigPi firmware uses.?

The standard audio software in the Raspberry ?Pi should let you route sound to and from a headset/speaker and microphone to the USB sound dongle you have connected to the uBitx. There are some Raspberry Pi Linux audio patch cord apps out there, but I have not tried them out.

The RigPi and the open source ESP32 sound and sound over the internet library I linked to previously could be of help if you are going to create your own audio software application.

Maybe there are some folks in the group that have more information on remotely controlling rigs and transporting the audio across a network. I've been studying this subject, that is why I just happened to have some links.

ProxMox... Interesting, I just ran across that program and was up all night the other night installing it on a used Lenovo ThinkCentre computer I got a good price. ?SmartDrive reports the hard drive in it has 37,000 hours of use, so decided to put a new drive in it, though. The log message was not too subtle. Because of the hours, It actually suggests "now" is a good time to make a backup everything on the drive. I manage production systems on AWS and it will be nice to have a very tiny version of a "remote" management system for virtual machines on a machine (or two) on my home network. Many of the tools I use for work are overkill for a "personal" datacenter. Except for some issues with the installer not doing the right thing (why I was up all night), it is great to have an off the shelf easy to install VM/cluster management system.

Tom, wb6b

Jerry,

I don't object to anything that Andy is doing because he knows what he's doing.? My concern is for people that don't know what they're doing.? That's all.?

Cheers,
Don?

Things changed here in the USA as of April 19 2022.
A new amateur radio license costs $35.
The 10 year renewal of an expiring amateur radio license also costs $35.
??
??

Don,

Years ago, I occasionally used a small inverter type DC arc welder to charge a 24v offgrid lead acid battery bank.
Could set the current to something appropriate, this was way faster than any other charger I had available.
Worked great for me but I don't recommend this technique to others, they might try using their AC buzzbox
or not guess right on which clamp is positive.?
If overcharged and/or poorly ventilated, the outgassing could have become quite dangerous.
As Andy said:???"Without automation, we become the management system - the battery is as dangerous as we are."? ?

Here's what Andy had to say about BMS's on RC aircraft batteries:
"RC batteries aren't unsafe because they don't have an i ternal BMS. In RC use, management is split between the charger on the ground (charges, controls voltage and current, and balances). In the air, the speed controller monitors battery voltage and disconnects the load. The only weakness is cell level low voltage isn't monitored (though the low voltage disconnect is conservative for that reason)."

So they keep the BMS as part of the charger, not part of the battery.? This reduces the weight of what goes up in the air, which seems ideal.? But anybody using one of those batteries (especially those charging at 25C!) should be using a BMS during charging.? The operator (or aircraft firmware) needs to be smart enough to land the thing safely before the battery expires.

The first thing needed is FRN so payment is possible when needed.
Renewal is done via ULS and last check was free.
ULS is the way to all things FCC for licensing and such.

Not an expert only do it about once every 10 years.

Allison
------------------
Please use the forum, offline and private will go to bit bucket.

Never hand a hammer to someone that's never used one they will hurt
themselves, usually applied to many tools.

Technology masks the hazards but can and often do make us safer.
So to me the idea of low battery go home makes sense as it performs
battery protection and reduces other hazards.

Never said BMS/BMB were he only way just its common and most
cases its the way to do it.? As someone that flew electric models
and real aircraft sudden fan stops make for much sweat.


Allison
------------------
Please use the forum, offline and private will go to bit bucket.

Yup, I know somebody with a license expiring in a couple months.
Thanks!

Joe,

Don' t be sorry. This is relevant information.

Thanks,

Mike N2MS