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#ft8 #sbitx_v2 #sBITX_v3 #ft8 #sbitx_v2 #sBITX_v3

 

sBitx v 3.02 and FT8 mode?
I love that the sBitx is a radio where one can tinker with both the hardware and software.
The unix pi app;

The web ui:


Currently I am working on improvements to the FT8 functionality.?
The logging function works fine, but I missed visible information on which callsingns that I had QSO's with and which grids I had reached.
The solution I have come up with does a lookup in the logbook for each line in the FT8 lists.?
If the caller callsign is found in the log it is displayed in green otherwise in red.
The grids are also colored in the same way.

This is one of the improvement I have made.? The software can be found on:
 

Great work.??I love the changes.??I will have to look into this further
On Mar 23, 2024 at 2:58?PM -0400, larslund.hansen@..., wrote:

sBitx v 3.02 and FT8 mode?
I love that the sBitx is a radio where one can tinker with both the hardware and software.
The unix pi app;
<webFT8.png><piFT8.png>
The web ui:
<webFT8.png>

Currently I am working on improvements to the FT8 functionality.?
The logging function works fine, but I missed visible information on which callsingns that I had QSO's with and which grids I had reached.
The solution I have come up with does a lookup in the logbook for each line in the FT8 lists.?
If the caller callsign is found in the log it is displayed in green otherwise in red.
The grids are also colored in the same way.

This is one of the improvement I have made.? The software can be found on:
 

I am observing an error during build:
sbitx_gtk.c: In function ‘pre_ft8_check’:
sbitx_gtk.c:4756:1: error: expected declaration or statement at end of input
?4756 | }
 

Hi all,
Sorry for the build error. I have fixed it. Furthermore i have discovered and fixed a grave error that caused "decoration markup" on the the F8 response sendt when clicking on a CQ message in the list.?
I have pushed a new version on github.?

I am quite pleased with how it works. It helps me to save bandwidth.

Remember that two new sqlite indexes needs to be created:

CREATE INDEX gridIx ON logbook (exch_recv);

CREATE INDEX callIx ON logbook (callsign_recv);
I used "DB Browser for SQLite" on the pi to create the indexes on my existing sbitx.db.
It will probably work without the indexes but slower.?
The two create statements are included in the?create_db.sql file so they will run if the database is created a new.

Lars?
 

No problem Lars and great job with the mods.?
I am running your codebase now and I appreciate the enhancements.
Does the world map work yet or is that still under development? I don't see any pins on it.
 


With my latest improvements the world map now has?pins (dots).
My version for the sbitx v3.02 software?runs on the sBitx v3 box (my is upgraded from v2) with the original 32 bit OS.

The web interface in FT8 mode now looks like this:

The software and description can be found on github

make sure to scroll down to the README and read to the end.
 

The missing screenshot

webFT8.png

 

Lars,
I see that you have an attempt.
What is your output power and what antenna are you using?
I have an output of 15 watts at 7 MHz in ft8 mode and I use a vertical inclined Delta Loop, which I feed from above.
The antenna consists of 43.8 meters of wire. The device is an sBitx v2, which is cooled by the heatsink and the RPi.
--
Gyula HA3HZ
 

ps.: regarding the antenna
Low power requires a good antenna. In the picture, I highlighted in red where the wire goes. The highest point is 10 meters, the two lower ones are fixed at 5 - 5 meters. With this delta loop antenna, I can use the device on 7, 14 and 21 MHz without an antenna tuner. The horizontal section is fixed at a distance of approx. 20 meters. Since I have a small area, this seems like a good solution.
Important: I often have to change the location of the transmission frequency, because the 100-watt weak signal stations suppress me. I note that I have managed several dx qso's using this method.
The log data only shows qso's made with sBitx.
--
Gyula HA3HZ
 

Gyula,
My aBitx is an V.2? upgraded to V.3. This reduces the output power but with cleaner output and its more resilient to bad SWR. I have also mounted a temperature controlled fan to the heatsink on the back.
I use long wire antennas 5-6 meters above ground with a 9:1 unun. The one I currently use is approx 20.6 meters long.? ?My output power varies a lot depending on frequency and SWR. I do not have an antenna tuner - the sBitx v.3 can handle bad SWR to some extent.?
Here is a list of my FT8 conditions on the different bands (values from the readout on my sBitx):
Band / SWR / Watts: 80/1.1/20, 40/1.8/36,? 30/2.8/15,? 20/1.4/18,? 17/2.3/16,? 15/1.8/8 and 10/1.5/10.
I have managed to get contacts on all bands - to my own surprise. I think that the power readings are the sum of transmitted and reflected power.
Maybe I should try the delta loop antenna you use.? Can you give links to relevant websites.
I also have had many DX FT8 QSO's with my sBitx? - it's quite fun.
--
Lars
 

Thanks for the picture Gyula.

How tall is the mast?

73, Yvon
AE7YD

?
 

Telescopic mast 10 meters high. At the top is the 2:1 and another 1:1 balun. This is where it connects to the RG8X coax. The baluns are on ft240-43 core. There is a French seller on eBay who makes these. This is not from him, I made this myself, but I bought one from him. It works nicely.
--
Gyula HA3HZ
 

Hi Lars

Is it possible to use your mods on 64bit OS such as JJs sbitx OS?
I tried and get:

compiling sbitx version v3.02.0016 in /home/pi/sbitx-oz7bx
/usr/bin/ld: ft8_lib/libft8.a: error adding symbols: file in wrong format
collect2: error: ld returned 1 exit status

Thanks and 73

Glenn VE9GJ

On 2024-04-25 17:55, Lars/OZ7BX wrote:
With my latest improvements the world map now has?pins (dots).
My version for the sbitx v3.02 software?runs on the sBitx v3 box (my is upgraded from v2) with the original 32 bit OS.
The web interface in FT8 mode now looks like this:
The software and description can be found on github

make sure to scroll down to the README and read to the end.
 

In the message of April 25, you can read that it works on a 32-bit system.
--
Gyula HA3HZ
 

I got your version of sBitx working.....I love it!
The only thing that would make it better is if it had a way of recentering the map on the web page over your QTH.
Did I miss this?

Thanks!
Garrett N7QWT
 

Lars,
I have reviewed your code and I want to pull this into my farhandev branch. can you generate a pull request? You have have to rebase your code, I am 8 commits ahead as of this time.
- f

On Mon, May 27, 2024 at 8:03?AM whoopaholic via <whoopaholic=[email protected]> wrote:
I got your version of sBitx working.....I love it!
The only thing that would make it better is if it had a way of recentering the map on the web page over your QTH.
Did I miss this?

Thanks!
Garrett N7QWT

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