开云体育

Another thought: why would external USB connections be important? Keyboard and mouse can be Bluetooth. Network (when needed) can be WiFi, and you can even use an external hotspot via WiFi when somewhere with mobile networks.

-- Regards, Dave, N1AI

I am a novice with regard to winlink.

My understanding is that the standard 'winlink' program suite is for Windows only, so not applicable to sbitx.

My other understanding is that the 'pat' winlink program is popular on Linux.

I looked at it once and I would say getting this to work on sbitx's Raspberry Pi is not simple.

My go-to source for this is watching the relevant videos on the KM4ACK channel on YouTube.

-- Regards, Dave, N1AI

Since today is the first time I opened up my sbitx box, all kinds of possibilities popped into my head.

For instance I have a Pi 5 on order and I just got the shipping notice. You can buy GPIO extenders and suitable standoffs to mount it and its fan upside-down with some room for airflow. So IMO there probably is a way to fit a Pi 5 into the box mechanically, and with the fan running and perhaps more aggressive CPU throttling and/or fan speeds it probably would be okay in terms of heat. The end plate would need to be modified or replaced because the external USB and Ethernet would now be in a different place. Same could be said for the hatch on the top of the case, it would be in the wrong place. May or may not be an issue depending on what you want to connect to the radio.

As for power, in the worst case the Pi 5 wants 25 watts so 5 amps at 5 volts. It also needs a compatible USB-C implementation that will convince it that it is getting that 5A. If not it falls back to 15 watt / 3A mode to be backwards compatible with older Pis. In the fall back mode it still works, but it does not supply much power to the external USB devices. You can run things like keyboards and mice, but not SSDs/NVMe/etc, they draw too much power. However you can still use them with a powered hub if that use case is important to you.

So, if all of the above is correct, a Pi 5 could work inside the sbitx case. It is said to deliver 2x or more improvement on performance.

Feel free to poke holes into this theory!

-- Regards, Dave, N1AI

Greetings to all. I have a BitX40 project radio for sale. It includes a custom build Raduino controller utilizing an Arduino Mega 2560 board. The 5V regulator and volume control are mounted on the assembly. The Si5351 is underneath the the LCD button board. The frequency is controlled using the buttons but the code also supports a rotary encoder. Both tuning features are available without any code changes. The code currently supports frequency changing and an S-meter function only...Other features can be added. I will include the code. You are free to use it as long as you include credits to the authors. You can always load different firmware if you choose. This is an incomplete project. I have a bag of additional parts, connectors and wiring I will include. Again, this radio still needs work to become a functional radio. Parkinson's prevents me from finishing it. I'd like to get $75 shipped for the lot. Check or postal money order please. No electronic payments. Thanks for reading. Jim WB2LHP in Traverse City, MI.

The problem with the device in your picture is: a) It's much bigger than the standard Pi footprint b) Its GPIO pins need to be on the right hand edge to fit into the sbitx box (see attachment) c) It needs that external USB3 bridge connector and that won't work mechanically without modifying the case

If you could find a SSD daughter card that fits within the standard Pi footprint and mounts below the Pi I think it would work. Also you might need to modify the case if you need to run the signal from the standard USB connectors to the daughter card.

I found a picture of an opened sbitx by googling, it is at and attached it to this post.

The Pi mounts upside-down to the 40 bin connector in the upper right hand corner. You can see the standoffs it gets screwed into. I took mine apart for the first time just to check and in my opinion there is plenty of room for a SSD daughter card. There is a decent sized gap between the Pi and the bottom of the display above it. By eyeballing I'd say the gap is at least as much as the height of the Pi itself.

I'm not understanding the concerns about the amount of RF the Pi is subject to. The Pi is already inside the enclosure with the electronics that generate high power HF radio energy, as is its SD Card media, and I'm not seeing how adding a SSD would change things significantly. I also don't think adding a SSD is changing the power or heat budget enough to be a concern.

Eventually I am going to try to find a solution to having NVMe storage with sbitx. I think I will end up just using an external USB3 NVMe adapter while I have the sbitx at home. I believe the Pi bootloader has settings so that you can favor booting USB and fall back to the SDCARD when a USB device is not present. Therefore I could do software development with the fast NVMe storage attached and when I build an image I like I can just copy it to the SDCARD so it is present when I want to take the sbitx away from my home station.

My approach to mounting such a NVMe would be something that might make people here gag, but it'd be industrial strength velcro. It's definitely strong enough to hold a USB3 NVMe adapter. It's also very important to not allow the connection to wiggle mechanically. Linux more or less expects the disk IO to work without failures. It gets very unhappy with anything but rare disk IO errors. I learned this the hard way.

-- Regards, Dave, N1AI

Hi Friends?
If you are a new ham or an old timer and have not tried building an SSB Transceiver then there is good news for you .
We at inkits are still making kits for Bitx .
The kits are available as mono banders but now we are about to launch 2 bands and 5 band Bitx kits .
Here is a video of easy Bitx 20 putting out 4 watts on 20mt with 12 volts . This was build for a club in Delhi India .



Have fun
De VU3SUA Sunil?

https://amateurradiokits.in?

Before I start I will apologise to 90% of the users on this group because it might offend....THIS IS NOT MY INTENTION.
To Carl Schlueter..... I have to ask if you are really a licensed Ham ? The reason for asking is simple... most of the
Hams I know have at least a basic knowledge of electronics, this being the basis of the hobby.
It would appear that you have little or none! Clearly you have done NO homework on the item you have purchased
(from a reputable supplier) No doubt you have blindly plugged it in and blown it up before reading the instructions.
People on this forum (who many are VERY knowledgeable) have tried to assist you all to no avail.
You don`t listen, you don`t learn and above all you don`t try to help yourself.......its someone else`s fault !
Man up, grow up, and own it.
Ask for help, it will be given to you.......what you do with it is your choice, stop blaming others for your errors.
Hundreds of these units have been sold and are in daily use.......doesn`t that tell you something??
Dave
G4JBE (UK)

Anyone who cannot copy the Sbitx_V2 image to the SD card should not want to operate a radio with Raspberry Pi4.
First you need to learn how to use the Raspberry Pi.
Before I bought a Sbitx_v2, half a year ago I started to get to know a Rapsberry Pi-400, on which I tried to learn the basic things.
I've also posted a few things here that I've modified on the device.
This year was particularly strong for me. At the age of 72, I did a lot of physical work renovating the house and its surroundings.
I do all this for my grandchildren. But next to him, I took the time to connect with radio.
What frustrates me is that the person I'm trying to help ignores the help.
Today's youth...I could say.
It doesn't bother me if you stop and sell your device. It is your life.
--
Gyula HA3HZ

Some of us buy a nice shiny sports car and have it serviced at the import dealer and some, like me prefer a Triumph TR6 that requires a lot of personal attention and work.? The HF Signals products fall in the latter category and I don't believe they ever tried to present them as anything different.? ?With the sbitx you can get under the hood and learn what makes it tick? I blew the finals because I was testing with a dummy load and forgot to reconnect the antenna, but it came with a couple of spares so it wasn't a big problem.? FT8 is a little flakey but it's a software problem that can and will be corrected.? I'm having too good of time learning to waste any complaining.
Barry KK4VT

Ultimately I ended up using the pi username (which the installer strongly recommended not to do so, but I suppose it is a nonissue considering the use case). I also had to make the appropriate changes to the build file for 64 bit ft8 and compile wiringpi separately, along with a few other minor differences in dependencies that I unfortunately did not document properly, as well as transfer some configs from the original SD card.

Anyway, I have Bookworm 64 bit up and running, touchscreen working fine purely through the DSI ribbon and 5v power. Sbitx appears to have compiled successfully, but I haven't managed to get anything working yet. I guess I also need to install and configure a few other things. I'll mess around with the original SD card on a regular monitor and try to compare what is different.

The install.txt in the github seems to end abruptly, is there some information that I am missing in order to fully set everything up?

Synopsis of the issue: my assembled sbitx v2 What for all of about an hour. Then it started to blow fuses. Soon as they flip the power switch fuse would ?blow. Contacted sales support, Thomas, and ?was sent a new motherboard. Carefully installing it when I turned it on at least I didn’t blow fuses but there was nothing ?after the various minor testing I determined it was the raspberry PI ?which obviously was damaged due to the original motherboard being defective. Thomas sent me an email containing some links and eventually telling me that I probably needed to buy a new RPI unit ?which I begrudgingly did. Install that PI with a SD card has formatted from Thomas nothing happens ?so back to square one reformat the card strictly to have raspberry pi OS on it up into the ?raspberry pi desktop. Nothing I have done has it been able to put the SBITX software on ?the latest venture was the file that direct me to do installed with Belena etcher (with rpi os). That results in a screen full of errors

I have repeatedly asked Thomas simply to send me an SD card with the necessary files on it ?that was not included with the new motherboard that was sent ?
Thomas now is not even bothering to answer emails. Users here as well as on Facebook have really not helped nor should it be their responsibility in something brand new like this ? I purchased what I thought was an assembled ready to go unit not some backwoods project.?

I would like for you to do one of two things either send me the SD card that will work or take the unit back and give me my money back. I do not wish to have instructions on how to make the SD card card When I should’ve had a fully functional one to begin with ?my investment so far is the $529 to SF signals and an additional $90 for an RPI V4 ?

yes I am completely frustrated and disgusted with his whole “adventure”. Going through messages I found quite a few people having the same types of issue with the lack of support. Had I known what I know now there is no way I would’ve bought this. When you pay good money for something you expect it to work and you do not anticipate having to go to a user community for problem resolution.?

Yes you are correct about the LO. The problem was that the mode was being changed in at least two different places, so there was on one place that I could put code to detect that the mode had changed from USB to LSB and thus change the LO to compensate. I put a print statement in set_mode and when I changed the mode from the front panel, it was not being called. Instead, it called sqr_request in which didn't call set_mode.
--
73,
Mark, N8ME

Thanks for sharing that.

My solution was to put the change to the LO in both places where the mode was set. On my todo list is a re-write consolidating the radio commands into a single place where changes like this could be made.

I have a public GitHub repository at?. It was originally forked from Ashar's original code, but I've made lots of changes and I'm not intending to merge them back into the code.? I've removed the web interface as I prefer to operate the classic display. It's not well commented. I haven't commented most of my changes and I've left some of Ashar's comments in where I've changed the code to where they no longer apply. IOW, beware - use at your own risk. The latest code I pushed to it does run, but the spectrum and waterfall haven't been updated for my change to the LO.

I basically use the GH repository as an online backup of my local code, but anyone is welcome to look at it and use it if they find it useful.

--
73,
Mark, N8ME