How I make a backup copy of an SDCard using Raspberry Pi OS

Switch on the Raspberry PI and let it boot.
Plug in a USB Hub Extender into one of the Raspberry Pi USB Ports
You need to know the name of the 2 x USB SD Card Readers you are going to use.

USB SD Card Reader  No 1 = Green FNK TECH  0100 Card Reader
USB SD Card Reader  No 2 = White Super Top Micro SD Card Reader

Now plug the No 1 Green card reader into the USB Hub Extender.
Type lsusb enter
Card will be listed as FNK TECH  0100 Card Reader
Remove the card reader from the USB Hub Extender
Now plug the No 2 White card reader into the USB Hub Extender.
Type lsusb enter
Card will be listed as Super Top MicroSD Card Reader
Remove the card reader from the USB Hub Extender
We now know the names of the 2 x USB SD Card Readers
This will help to prevent mishaps when you make a backup copy of a card.
One can easily select the wrong cards when copying on to the other.

Ensure that you have a “clean” new SD Card to which you want to copy to.
I format the new card with SD Card Formatter in Windows with one of the card reader.
I select which card to format and then add the Volume Label  Example:  svxlink bu
Once added you can now format the card.
Remove and keep the card and reader at hand.
First we going to plug in the Green SD Card Reader into the USB Hub Extender that is connected
to the Raspberry Pi.
Now go to Accessories and click on SD Card Copier
SD Card Copier window will open displaying:

Copy from Device
Copy to Device

Click on the down arrow of the Copy from Device and FNK Tech 0100 Card Reader (dev/sda) will be listed.  Select it.
Now add the White SD Card Reader into the USB Hub Extender that is connected to the PI
Click on the down arrow of the Copy to Device and Mass Storage Device (dev/sdb) will be listed
Select it.  Leave other settings as is.
Click on Start and the copy process will start.
Green SD Card Reader LED will flicker and partition 1 will be copied.  Later partition 2 will be copied.
Once the process is finish a screen will appear to say that copy has been finalized.
Click OK
Eject both SD Card Readers
You now have 2 x SD Cards.  One backup and one for use.

Store the backup in a safe place and do not forget to label it so that you know what is on the card.
This backup process will save you a lot of time and frustration in the event of a corrupted or error card etc.

Enjoy!!

My mede Radio Amateurs berig dat my Echolink Audio "opbreek". Hoe nou gemaak?

Die titel van die onderwerp is duidelik maar waar gaan kyk ek om die probleem op te los? 

Vir doeleindes van die onderwerp gaan ons na die volgende stelsel kyk.  'n Gekoppelde Herhaler / Link Stelsel.  Beter bekend as "Sysop Mode" in Echolink.

Om die probleem op te los gaan ons die konsep van eliminasie gebruik. Maak asb seker dat u 'n goeie Internet verbinding het alvorens u foutnasporing doen aangesien 'n swak Internet koppeling ook die oorsaak kan wees van audio probleme. 

Ons moet eerstens vasstel wat veroorsaak die probleem maw:

1.  Is dit 'n Internet Konneksie Probleem?

2.  Is dit 'n Rekenaar Probleem?

3.  Is dit die Echolink Sagteware wat die probleem veroorsaak?

4.  Is dit 'n koppelvlak probeem tussen die radio en die rekenaar?

5.  Is dit 'n Mikrofoon Probleem?

6.  Is dit 'n Radio Probleem?  (Gekoppeld radio of Draagbare Radio afhangende van die toerusting wat jy gebruik)

7.  Is dit 'n swak of droe las koppeling tov die stelsel?

8.  Is dit 'n klank-kaart probleem?

9.  Is dit 'n kragbron probleem?

10.  Is dit 'n Internet Diensverskaffer of Modem/Router Probleem?

11.  Is dit 'n "Firewall" Probleem.

12.  Is dit 'n geslote poort wat oopgemaak moet word op die"Router"?

Nou ja dit is 'n lang lys van moontlike oorsake maar om die probleem op te los moet jy alle moontlikhede ondersoek.  Vir die doeneindes van die artikel gaan ek net kyk na die Echolink Sagteware Program wat 'n probleem veroorsaak het tov 'n gekoppelde herhaler stelsel/netwerk.

DIE PROBLEEM:

Die audio van die stasie wat deur die herhaler stelsel/netwerk praat breek sleg op.  Groot gedeeltes van die gesprek verdwyn eenvoudig met net sekere gedeeltes wat hoorbaar is.  Wanneer die audio verdwyn, verdwyn die dragolf ook.  Dit maak nie 'n twee rigting gesprek moontlik nie.

Die stelsel / netwerk het voorheen goed gewerk maar na 'n kragonderbreking het die probleem onstaan.

FOUT NA-SPORING:

Daar was vermoed dit dit 'n Internet, Rekenaar of Echolink Sagteware probleem kon wees.  Eerste op die lys was die Internet.  'n Eenvoudige toets is om Echolink op 'n selfoon te aktiveer en dieselfte Internet koppeling te gebruik.  Die toets het aangetoon dat Echolink op die selfoon geen audio onderbrekings teweeg gebring het nie en dat Echolink korrek werk op die selfoon met dieselfde Internet koppeling as wat die Echolink Rekenaar gebruik.  Die toets het 'n Internet Konneksie / Diensverskaffer of Modem probleme uitgekakel.  Siende dat daar geen veranderinge aan die Stelsel/Netwerk gemaak is nie was die volgende moontlike probleem dat die Echolink Sagteware op die een of ander manier tydens die kragonderbreking foutief of korrup geraak het.

AANVANKLIKE OPLOSSING:

Ek het deur die volgende verstellings gegaan en vergelyk met my toetse wat ek so ruk gelede gedoen het.  Ek het net na die volgende gekyk. Buffering:  Klik op Tools,  Setup, System Setup skerm sal oopmaak.  Klik op Performance, dan Buffering.  Verstellings is soos per foto 1  Network Buffering  10,  Pc Buffering  5  Total Audio Delay 1.20  Klik OK  Die settings is nou korrek.  Dit is ook die rede dat die audio in en uit geval het omdat die buffering voluit oop was.  Hou maar by die default.  Die ander setup wat ek na gekyk het is Sysop Setup, foto 2.   Gaan na Tools, Sysop Settings dan na Sysop Setup.  Die toetse wat ek gedoen het was ook in VOX.  Ek het gevind dat die volgende verstellings goed by my werk en voorkom die Loops en Ping Pong effek.  Vox Delay = 500  Anti Thump = 200,  ClrFreg Delay = 3000.  Ek het ook Squelch Crash Anti-Trip geaktiveer met 'n  X en die Duration is 50  Na die veranderings klik OK   "Squelch Crash Anti-Trip:  If you are using VOX, check this box to enable a special feature that improves VOX behavior when your link is tuned to a local repeater.  When this feature is enabled and properly adjusted, EchoLink's VOX will ignore short noise bursts, such as squelch-tail "crashes" and courtesy tones.  This can significantly improve repeater-to-repeater linking."  Die laaste wat ek sou byvoeg is soos per foto 3:  Click Tools, Setup, Audio.  System Setup skerm sal oopmaak.  Ek het op die blokkie klik langs 300 Hz TX High-Pass Filter en die  filter geaktiveer.  Kan net TX audio verbeter.  Klik OK   

Foto 1 (Klik om te vergroot)

Foto 2 (Klik om te vergroot)

Foto 3  (Klik om te vergroot)

FINALE OPLOSSING:

Bostaande verstellings het die audio opbreek probleem met tye opgelos op die toets Echolink Stasie ZS1I-L.  Indien bostaande nie die probleem oplos nie stel ek voor dat die buffering "Reset to Default" geklik word.  Selekteer dan OK.  Jy kan ook die Squelch Crash Anti-Trip de-aktiveer deur op die regmerkie te klik en dan op OK. 

Die opbreek van audio met bostaande verstellings het met tye voorgekom.  Gedurende 'n 3 minute rondte sou jy twee keer kry wat die audio vir 'n paar sekondes uitval.

Die volgende verstellings is toe gemaak:

 

1.  In Sysop Setup klik op RX Ctrl.  Verander VOX Delay na 'n "Default" van 1200 ms.  Die res bly onveranderd.  Klik OK.

2.  Die final Buffering Setup in System Setup / Performance is soos in bostaande foto verander.  Klik OK. 

3.  Terug op die Hoof Blad van Echolink. Die Vox Threshold is ook verstel na 45%.  Jy kan slegs die verstelling maak as jy aan 'n stasie gekonnekteer is en jy TX.  Die bostaande aanduider verskyn en jy gebruik dan die "slider" om die "Vox Threshold te verstel".  Meer inligting HIER beskikbaar.  Onthou om altyd the rekenaar te "reboot"  as jy verstellings gemaak het. 

Daarsy en nou behoort Echolink goed te werk sonder dat daar onderbrekings is in die audio.  Onthou net wanneer die Internet "siek" is kan audio ook verlore gaan of jy kan selfs heeltemal uit die stelsel "val".

Tot dusver werk die verstellings goed en het die probleem van klank verlies nog nie weer voorgekom nie.  Hopelik is die probleem finaal opgelos.

'n Laaste woord of wenk.  Werk systematies deur die "12 punt foutlys" om die probleem na te spoor.  Merk die lys af soos wat jy deur hom werk en vastel dat daar nie probleme is by die aspek wat jy toets nie.  Jy sal wel gou vasstel waar die probleem le en dit dienooreenkomstig oplos.

Ek hoop dat die artikel ander stasies van hulp sal wees sou hulle 'n soorgelyke probleem ervaar.

Bloemfontein Voortrekkers leer meer oor Amateur Radio Kommunikasie - 2 November 2024

Hoerskool Sentraal in Bloemfontein was gister sommer lekker besig gewees.  Nee, dit was nie met skoolwerk of sport nie maar het die Bloemfontein Voortekkers meer geleer oor radio kommunikasie in besonder amateur radio kommunikasie.  Onder leiding van die Bloemfontein Amateur Radio Klub (ZS4BFN) het Rulhof ZS4RM, Ettiene ZS4EG en Michael ZS4BHF die Voortrekker Verkenners meer geleer oor amateur radio teorie asook die praktiese toepassing daarvan, beter bekend in die voortrekkers se taal as Radiospraak.

Maar wat behels amateur radio kommuniksie?  Radio-amateurs gebruik verskeie radios en modusse (analoog sowel as digitaal) asook VOIP ("Voice Over Internet Protocol") om met mede radio-amateurs reg oor die wêreld heen kontak te maak.   Wel nie net wereldwyd nie maar ook met ruimtevaarders aan boord van die Internasionale Ruimtestasie (ISS).  Kontakte word deur ARISS ("Amateur Radio on the ISS") gekoordineer.  Dit stel jong mense en studente in staat om met die bemanning op die Internasionale Ruimtestasie kontak te maak en vrae oor die ruimte en wetenskap te vra.  Hierdie is maar slegs een aspek van Amateur Radio.  Die tyd en spasie laat my nie toe om al die aspekte van Amateur Radio hier te verduidelik nie.  As jy meer wil weet klik op die skakel hieronder.

Die drie bostaande radio amateurs het ook verskillende radio toerusting / aparaat uitgestal tydens die geleentheid.   Daar is ook breedvoerig verduidelik hoe om 'n radio stasie op te rig en dan die toerusting te gebruik om kontak te bewerkstellig met ander amateur radio stasies.  Van die Verkenners het ook hul voortrekker radio kentekens verwerf tydens die byeenkoms nadat hulle die vasgestelde vereistes nagekom het.  Baie geluk aan die Verkenners wat radio kentekens verwerf het. Dankie ook aan Hoerskool Sentraal en die bostaande Radio Amateurs vir julle bydrae tot die sukses van die geleentheid asook om amateur radio te bevorder !!

Wil jy meer weet oor Die Voortrekkers?  Klik HIER

Wil jy meer weet oor Amateur Radio?  Klik HIER

Fotos (Klik op fotos om te vergroot.)

Did you fail the Radio Amateur Examination (RAE)? Never give up!!

With all the results of the recent Radio Amateur Examination (RAE) now available there might be some who did not pass the RAE.  This is nothing new as it is something that occurs in life whether it is at school, college or university.  While others celebrate there are those who might be sad and feel that they are a failure or that they did not study hard enough. Be as it may this happens in the best of families but everything is not lost.  You can and should write the RAE again in May 2025.  The latter part of the title of this article say it all:  "Never Give Up!!"

Why should one not give up in becoming an amateur radio operator?  Well I can provide you with many reasons here but I would rather like to tell you a story as an encouragement to write the RAE again and if necessary again and again.

More than 30 years ago I met Chris a 74 year old real gentleman in the town that I was living in at that stage.  I was always interested in radio and saw a large tower and antenna about 3 km away from my home.  One day I decided to visit this radio operator by knocking on his front door.  I introduced myself and the first thing he asked me if I was from the Post Office Inspectorate.  See in those days  the Post Office was the authoritative body responsible for citizens band, commercial and amateur radio.  Some citizens band (CB) operators used high power amplifiers and was then visited by the  Post Office Inspectors which resulted in confiscating such equipment or issuing of a fine.  Need I explain why he asked me if I was from the Post Office Inspectorate?

I told Chris no I am not from the Post Office and that I am just interested in radio and thought that he will be able to tell me more about his station, tower and antenna.  With the ice broken the rest was history and I need not tell you that I become a CB operator.  But this is not the crux of the matter.  One day Chris visited me and he brought a blue book with him.  (See top image)  He informed me that we are both going to become radio amateurs.  I was not very keen on the idea and he could see that on my facial expressions.  He said that he is 74 years old and that he is going to write the RAE and that it will be a shame if a 74 year old can pass the examination and that I (much younger than him) am not willing to except a challenge from an old man.

After we had a cup of coffee Chris left and my brain started to go haywire about this idea.  Well need I say that Chris wrote the examination but unfortunately failed the technical paper.  I did not even try to write the examination.  Chris told me he is not going to give up and that he will again write the examination the next time around. He wrote again and failed again.  I still did not even try to study the blue book.  Eventually I was transferred to another town but we kept contact.  One day Chris phoned me and he informed me that he was going to write the RAE for the third time.  Well he passed both papers and did well.  I was informed accordingly and the determination of Chris convinced me to write the examination the next time around.  I passed first time and Chris was in another world.  Unfortunately we were never able to make contact via HF as Chris went silent key after open hart surgery.

I dedicated my first HF contact to Chris Langeveldt ZS4CL (SK) (CB Handle:  Mazda) and left my first entry in my HF Log Book empty with a note in the remarks column that this first contact is dedicated to the man that challenged me to became a radio amateur.  I later managed to receive and empty QSL card (see image above) from his XYL Tant Annie (CB Handle:  Silver Draadjie).

May this short real story encourage those who did not pass the RAE this time around to write the examination again and if necessary a third and even a fourth time.  Never Give Up on your dream to become an Amateur Radio Operator does not matter how old you are.  I can guarantee you that amateur radio will change your life.  Remember  no where in this world will you find another diverse hobby like amateur radio. 

We as radio amateurs would like to welcome you to the best hobby in the world.  We enjoy attracting more people, from across our differences, to our common passion for radio? To those who have just passed the RAE be radio active! Be the connector that grows the hobby! And if you have a friend who is not a radio amateur or did not pass the exam the first time around,  invite and encourage him to write the RAE again to become an active radio amateur.

Remember:  Never Give Up!!

Congratulations to all the candidates that wrote and passed the Oct 2024 RAE Examination!!

 

As per the above title I would like to congratulate all the RAE candidates on passing the RAE, They wrote the examination last Saturday (19 October 2024).  A special word of welcome to every new radio amateur and I trust that every single one that passed will be and active radio amateur for the rest of his lifetime on this planet.  We as "older" radio amateurs would like to take this opportunity to share our knowledge that we gathered throughout the years. Let's be realistic there will by experienced radio amateurs that might not share their knowledge but they are definitely far and in between. There are also a few "soar plums" around.  Please ignore them and find a friendly helpful radio amateur.  The only thing that you must do is to ask questions on the airwaves, and NOT social media as we would like others to also learn from you questions.  After all we talk about amateur radio here and NOT social media!  If you do not ask questions you will not gain the knowledge of experience radio amateurs. Yes, there is Google, YouTube etc. but they do not always explain the "nitty gritty" and definitely not the way experience radio amateurs will personally assist you with any problems you might experience in your amateur radio career.  The worst thing you can do is to "disappear" after you wrote the RAE.  Please get into the swing of things as soon as possible!!

The following candidates passed the RAE in the Southern Cape Area:

1. Jacobus ZS1JDJ

2.  Vivian  ZS1VIV

3.  Jacub ZS1KUB

4.  Matthys ZU1MY

5.  Martin ZS1FCN

6.  Cloe  ZR1CZ

7.  Llewellyn  ZS1VIS

Congratulations to the Eden Radio Club who managed to obtain a 100% pass rate!!

Finally:  Many thanks to all those who are/were involved in the RAE, PR and the recruiting process.  

New Improved ZS1I ASL3 DMR Bridge - Setting up a DVSwitch Server / DMR Bridge using ASL3 (Part 2)

Image 1: ASL3 Landing Page

Now how do you install and setup an ASL3 DMR Bridge?  Million dollar question?   No there are many tutorials out there on the Internet that will assist you in installing a ASL3 DMR Bridge.  I will however explain in this article how I went about installing and setting up the ZS1I DMR Bridge on a Raspberry Pi 3 b.

For the purpose of this tutorial I am not going to explain how to install AllStarLink Ver 3 on an SD Card for use on a Raspberry Pi. The  ASL3 Landing Page includes the ASL Manual.  Click on this block or image and you will be redirected to a comprehensive online manual for AllStarLink Ver 3.  Here you will find all the necessary information to install AllStarLink Ver 3 successfully.

With regards to installing and setting up the Bridge we need to install and setup a private node, edit files, test connections to nodes, install and setup DVSwitch server, setup BrandMeister, install Apache2 Server, program DMR radio, install DroidStar on your cellphone and open ports on you Internet Router.  Do not run away it is fairly simple to get the ASL3 DMR Bridge up and running.  Having knowledge of Linux and the Raspberry Pi will make it easier to navigate through all the installations and setups. Even if you do not have experience in this regard you will be able to install ASL3 and the DMR Bridge if you follow all the instructions carefully.

Let's get going!!

 Image 2  AllStarLink3 System Manager Login

Image 3 AllStarLink3 Cockpit

I assume you already booted the PI and that you are on the Landing Page as displayed above.  (Image 1) To get to the landing page just enter the Raspberry Pi's IP address in you Internet Browser.  I use Firefox.   Click on Web Admin Portal window.  The AllStarLink System Manager page will open.  Login with your username and password.  (Image 2)

A new window will open , called the cockpit,  displaying many options. (Image 3)  At the top a banner will be displayed  - Web console is running in limited access mode.
Click on "Turn on Administrative Access".   You will now have Administrative Access.  On the left side of the page go to Terminal and click on it.  Terminal will open.  After the $ sign type:

sudo asl-menu [enter]

The asl-menu will open and here we are going to setup a New Private Node.

The AllStarLink Main Menu will open.  Select 1 Node Settings  [enter to select]

In the Node Setup Main Menu select 1 - Allstar Node Setup Menu [enter to select]

A new menu Allstar Node Select Menu will open .  Select A - Add Node  [enter to select]

Enter new node number:  I used 1980 ( Anything between 1800 - 2000.  Do not use private node number already used in other AllStarLink Nodes)

Question will appear asking:  What configuration settings should we use for Node 1980?

Select 0  None of the above (show all settings) [enter to select]

Node 1980 info will appear:

1  Node Number:  1980

2  Node Password:                (Leave blank.)

3  Node Call sign:  ZS1I   (Enter you call sign here)

4  Radio Interface:  USRP  [enter]  Select 5  USRP [enter to select]

5  Duplex Type:  Select 0  Half / Full duplex with no telemetry link -  Use  space bar to select.  Select half duplex.  Next select Back and Back again.  Select 2  Restart Asterisk  <- Needed   [enter to select]

Asterisk will restart

Node Setup Main Menu will appear again.  Select 3  Update Asterisk AMI Password

Enter to select.  If you have not changed it do in now.  I already changed mine earlier.

Select 4 Update Asterisk IAX Port.  Enter Change Port.  I used 4562 -  Ensure that this port forwarding is also opened in you Internet Router.

Exit Main Menu

Select <Back>

The AllStarLink Main Menu will open.

Asterisk must be restarted to make you changes alive.  Are you sure you want to exit now.  (Note:  Asterisk restart can be done selecting 7 Logout/Reboot/Shutdown.  Select 3)

Select Yes and [enter]

Type the following at the prompt in the Terminal

sudo systemctl restart asterisk.service  [enter]

After  restart type the following at the prompt in the Terminal   

cd /etc/allmon3  [enter]

then sudo nano allmon3.ini [enter]

Go to the bottom of the page and enter the  following:

[1980]

host=127.0.0.1

user=admin

pass= xxxxxx  ;your asterisk password we created earlier

 

Let's save the info

Hit Ctrl + X

Yes

[enter]

 

Reboot the node.  At the prompt type:

sudo reboot now [enter]

Go to Web Admin Portal (Click on Window)

Log in again 

AllStarLink System Manager will show up (Cockpit)

Turn on Administrative Access

Click on image for larger view

Let's go to the Allmon3 page

Open and Internet Browser Tab  and type

https://IP Address /allmon3/  [enter]

Browser Page will Refresh.  If not just click refresh button (reload current page)

Node 1980 has been added once the page has reloaded. We now have two nodes displayed.  AllStarLink3 Node and 1980.  

Login to Allmon3  (left side of page under nodes)

Username:  ZS1I

Password:  XXXXXX

We now need to check if node 1980 can connect to the AllStarLink3 Node you choose.

Choose the block with the two links on the right side of the Allmon3 Monitoring  Dashboard page

Select  command and select connect

Node # = 1980

Permanent = No

Click  Execute

 

The two nodes will be connected.  See Connect State.  It says  ESTABLISHED at both the nodes.

Now Disconnect by clicking on  X left to Node 1980 - Hover over it. The X will turn to a maroon colour.  Screen will come up to disconnect node.  Just click Execute.

The two nodes will now be disconnected.

It is now time to install DVSwitch.

Go to the Cockpit

Select Terminal (Click on it)

At the prompt enter:

sudo su -  [Enter]

root@asl3:~#

You now have root access.

Click on image for larger view.

 

Let's install DVSwitch:

 

At the prompt type:

wget dvswitch.org/bookworm [enter]

chmod +x bookworm [enter]

. /bookworm [enter]

apt update [enter]

apt install dvswitch-server [enter]

When DVSwitch server is finished installed reboot the Pi

sudo reboot now [enter]

Let's configure DVSwitch.

 

Log back into the ASL3 cockpit 

Select the Terminal and type:

cd /usr/local/dvs   [enter]

ls [enter]

sudo . /dvs [enter]

Go through DVS Main Menu

Select 01  Initial Configuration : Callsign, DMR ID, BM Server and AMBE

Initial Configuration  Select Yes [enter]

Callsign:  ZS1I

DMR ID:  6550119

DMR ID + 2 Digits:  655011904

Leave every thing else as default  [enter]

USRP Port  -  Select Default OK [enter]

 

Input

 

Default (Analog_Bridge.ini)

 

TX Port = 32001

RX Port = 34001

Select Yes by hitting [enter]

Select BrandMeister Server:  38 BM_6551_South_Africa

Click Enter

 

Input

 

Enter Hotspot Password:   XXXXXXXX

Hit OK

Next Menu =  Hardware Vocoder (AMBE)

Select 4  No Hardware Vocoder (Use Software  Vocoder

Input finished.  Select Yes (Processing will start)

Initial Configuration Finished

 

DVSwitch Server is up and running

Click OK and enter to go to 03 Tools Menu

Select 39  Back Return to MAIN MENU   OK [enter]

Main Menu will appear  (Menu Script V.1.61)

Select 2  Advanced. Configuration  TG/Ref Manage, Macro, DMR Networks [enter]

Select 21 Configure other stanzas - Frequency, PWR, Lat, Long, Location .....

[enter]

Input

Parameters MMDVM Bridge.ini

Press enter to select Yes

Select TX + RX Frequency 145.550 Mhz   Enter other particulars GPS Power Location etc.   Leave description as is.

Input  OK  MMDVM_Bridge  Leave URL as is.

Input URL  DVSwitch Group   Leave DVSwitch Group as is. 

OK [enter]

Finished  [enter] to go to Menu

[enter]  (End of 21)

 

Now return to Advanced Configuration Menu

Select 24  Additional DMR Networks

Look that Brandmeister is your default DMR Network

Select 2  Brandmeister  Click OK  If BM  Server not configured then select 1 and configure DMR Server

Current Setup:

server address = 6551. master brandmeister.network

PW   XXXXX

USRP Port = 62031

 

Return to Main Menu

Click Back

Go to Tools (03) in Main Menu - SD Card Etc.  [enter]

 

Select 32  Configure ini files: Analog_Bridge. ini, MMDVM_Bridge.ini files [enter]

Select 1   Edit Analog_Bridge.ini

[enter]  (OK)

Scroll down to USRP

Change to the following:

 

TxPort=32001

RxPort=34001

usrp Audio=AUDIO_USE_ GAIN

usrpGain=4.00

; usrpAGC= -20,10,100 (Close with ; in front)

tlvAudio=AUDIO_USE_GAIN

tvlGain=1.00

 

Now move up to tgTg = 9 (Change this to the TG you want to start on after every reboot)

Change txTg to = 65511 or 655 etc

Save changes now

Control X

Yes to Save

Enter

 

Go to 8  Edit DVSwitch.ini

Go to export TG = 65511

Set TG as export TG

Save changes now

Control X

Yes to Save

Enter

 

Go Back to:

Tools Menu

Go to 36 = Restart DVSwitch Services

Then 37  Reboot the Pi - sudo reboot now [enter]

Go back to Landing Page (Cockpit)  Turn on the administrative access.

Go to Terminal

cd [enter]  

 

Install Apache2 Server

 

sudo apt install php-cgi libapache2-mod-php 8.2   [enter]

Install   Yes

sudo reboot now  [enter]  Go to your Internet Browser.  Press refresh button

Refresh Internet Browser (Firefox) or enter https://IP Address/index.php/

DVSwitch Dashboard will show in the window

Your DVSwitch Dashboard is now up and running

 

Now go to allmon3

https://IP Address/allmon3/  [enter]

Login

 

User Name = ZS1I

Password = xxxxxxxx

Login

 

Connect the two nodes together

Connection State =  ESTABLISHED (Both nodes)

Once connected you can test the Bridge 

Use IAX, DVSwitch, DMR Radio or Droidstar to test the Bridge

The ASL3 DVSwitch Bridge should be up and running working both ways.  Analog - Digital - Analog 

(AllStar / Echolink - DMR - AllStar / Echolink)

 

Congrats you successfully installed the ASL3 DVSwitch DMR Bridge.

NOTES:  Changing Talk Group (TG) without any hassle:

Go back to the AllStar3 Login (Cockpit)

Go to Terminal 

sudo /opt/MMDVM_Bridge/dvswitch.sh tune 655 [enter] (This command will change the talk group to 655)

 

Key-up on AllStar and it should send the audio  TG 655 (SA DMR Talkgroup)

Go to the DVSwitch Dashboard

Key-up your analog radio which is connected to AllStar

Target will change to TG655 = SRC to NET

Key-up your DMR Radio TG655 and it will show TG655 = SRC  TO LNET

 

If I reboot the node it will go back to the default TG 65511 (ZS1I Talk Group) as set in Analog_Bridge.ini

If you do not want to reboot the node just change the TalkGroup (TG) back to 65511 using:

 

sudo /opt/MMDVM_Bridge/dvswitch.sh tune 65511 [enter]

 

Go back to DVSwitch Dashboard.  Key-up AllStar Radio and your DMR Radio. Dashboard will select TG as 65511

 

Easy as Pi to change a Talk Group. (TG)

And this is how I installed the ZS1I ASL3 DMR Bridge for use by fellow radio amateurs or install and setup your own ASL3 DMR Bridge.

 

Enjoy!! 

 

Compiled by:

Johan ZS1I

Mossel Bay

24 October 2024

New Improved ZS1I ASL3 DMR Bridge now up and running in the Southern Cape (Part 1)

Image:  The ZS1I ASL3 DMR Bridge connected to the Allstar 49355 ZS Hub Network  (Click on image for larger view.)

On Thursday, 8 June 2023 the following article was published on this Blog:

NEW!! - DMR Bridge now Active on the Garden Route Hub Network.

Several more articles followed:

(1)  The GRHub Network, Mossel Bay now provides Inter-Linking Radio Services

(2)  Another way to use Digital Radio Modes if you do not have an RF Radio = DroidStar 

(3)  ZS1I DMR Bridge now permanently linked to the GRHub Network, Mossel Bay

(4)  DMR Bridge now active in the Garden Route Area and "test driven" by Majorke ZS5V from KZN.

From publishing the first article, it is now more than a year ago that I setup the ZS1I DMR Bridge.  Lot's of things can change in a year with regard to DVSwitch and AllStarLink.  The bridge that I installed and operated in the Southern Cape was working great but with one flaw.  The audio quality had a robotic sound to it which many do no like but as we all know we are talking about DMR here.  I enjoy keeping up to date and was constantly looking to improve the audio quality of the then  ZS1I DMR Bridge.  Three days ago I found the latest information on how to setup a DVSwitch Server for AllStarLink Ver. 3.  I chose to use this "setup" for the new  ZS1I ASL3 DMR Bridge in Mossel Bay.  Well this is what I had been looking for.  The audio quality is absolutely far better than the old bridge audio quality.  It also has several new features but more on this in Part 2.

Below:  Here is a short audio sample which I recorded while Richard ZS5RMN was talking on DMR to AllStar using DroidStar.

Below: Here is a short audio clip listening with my DMR radio on the UK HubNet.  AllStar to DMR using TYT MD380 Radio.

I am sure you will agree that the audio quality is now up to standard and far better now than what it has been in the past.

ZS1I ASL3 DMR Bridge activity on the ZS Link Hub Network : 

The AllStar-Echolink-DMR Bridge is now active on the ZS Link Hub Network, Mossel Bay and is also available to all the ZS-Link Network users. (To many to mention them all here.)  Now what is this all about?

It is quite simple.  When the Bridge is active it connects the following applications/nodes together which is forming  a "Bridge".  Simply put it allows one person to talk on Echolink and the conversation will be propagated to AllStar and DMR and vice versa.  

This bridge has been a useful addition to the ZS Link Network.  It is now permanently linked to the network.  The ZS1I DMR Bridge is now the gateway to some who cannot afford to buy a digital radio, hotspot etc or might "want to get their feet wet first."  There are ways and means to use DMR and other digital radio modes without  a radio or hotspot.  I indicated before that you can use your analog VHF/UHF radio to work digital radio modes via the ZS1I ASL3 DMR Bridge (TG65511).  I am so grateful to those who made this possible by writing software and creating applications for this purpose.

Anybody that are connected to ZS1I-R Echolink or 49355 AllStar will be automatically connected to   the ZS1I ASL3 DMR Bridge (TG 65511) and can make a contact on DMR either by using a DMR Radio, DroidStar, 2m Analog RF Radio, Computer or Cellphone. The Bridge allows radio amateurs that do not have a digital radio to make contact with DMR stations via the equipment mentioned above, whichever they have available.

I trust that the ZS1I ASL3 DMR Bridge will be of use to radio amateurs who would like to learn more about DMR and the use of this facility.  It definitely open up new doors and adventures in the world of digital voice radio using analog radios.

Enough for now.

Finally:  I would once again like to invite clubs and radio amateurs to use and keep on using the ZS-LINK and GRHub Network if they so wish. The ASL3 DMR Bridge network is not a private, club only or special allocated network venture.  It is open for general use by any radio amateur.  Start or join a QSO on DMR and make new friends.

In Part 2 we will be looking at how to install and setup this ASL3 DMR Bridge on a Raspberry Pi and connect it to BrandMeister, AllStar, Echolink, DMR TalkGroups and other digital voice radio "mode'.

Thank you to those who support and use the ZS-Link Network regularly.  Highly appreciated!!

Opvolg: Ope Vraag - Is Suid Afrikaanse Innovasie in Amateur Radio dood?

In die uitgestrekte landskap van tegnologiese vooruitgang is daar ontelbare onbesonge helde wie se bydraes 'n diepgaande impak op die moderne wêreld gehad het. Onder hulle staan ​​amateurradio-operateurs hoog as pioniers van innovasie op die gebied van kommunikasie. Van die vroeë dae van morse kode tot die era van digitale seinverwerking, het die innovasies wat deur amateurradio-entoesiaste aangedryf word, 'n onuitwisbare merk gelaat op die manier waarop ons vandag verbind en kommunikeer.

As jy Amateur Radio op die hart dra luister dan gerus na die klankgreep.  Ja hy is 29 minute lank maar dit behoort hopelik jou uitkyk tov innovasie in amateur radio ingrypend te verander. 

 

Lys van Suid Afrikaanse Innovasie in Amateur Radio (Slegs 'n paar voorbeelde hier genoem. Ek glo daar is nog talle ander maar laat die spasie en tyd my nie toe om almal te noem nie.)  Klik fotos om te vergroot.

1. 2024 ASATSA Space Symposium - 19 October 2024 

Speakers at the Symposium:

1.1  Hans van de Groenendaal ZS6AKV

1.2  Hennie Rheeder ZS6ALN

1.3  Gary Immelman ZS6YI

1.4  Jon Ward SANSA Hermanus

1.5  Burns Fisher WB1FJ AMSATNA

1.6  Anton Janovsky ZR6AIC

 2.  HF Doringdraad Antenna -  Christi ZS4CGR  

3.  Repeater Anti-Theft Alarm - Christi ZS4CGR

4.  SA Digital Voice Network Innovation - Curtis ZS6CMO + Johan ZS1I

 

5.  AMSAT SA Dual band 70cm/yagi Mark II - Gary Immelman ZS6YI (ZS Oct. 2024)

6.  HAM Challenge 2024 IARU Region 1

7.  'n Eindelose Antenna - Christi ZS4CGR (ZS Okt. 2024)

8.  Baofeng and Barbed Wire Activity - Brian Jacobs ZS6YZ  (ZS Oct. 2024)

 

9.  2025 Tinus Lange 7066 Technical Excellence Award - Radio ZS October 2024

10.  BACAR Flies Again - ZS6SRC - Guy Eales (ZS Sept. 2024)  

11.  Converting a Ham4 Rotator into a super Rotator - Mat Erasmus ZS6PEG (ZS Sept. 2024)

12.  First SKA-Mid Dish takes shape in South Africa - Engeneering IT  (ZS Sept 2024)

13.  QRM Noise Canceller - Improved RFI Cancelling - Warren Ackerman ZS6AKW  (ZS Sept 2024)

14.  Personal Account of the rescue of SV Petra - Jakes van Zyl ZS6JJZ (ZS Aug. 2024)

15.  The Cool - Log Book Program - Eddie Leighton ZS6BNE

16.  First Annual Queens of the Mountains - Adele Tyler ZS5APT (ZS July 2024)

17.  Gauteng Kon-Tiki 2024 -  Nigel ZS6RN  (ZS July 2024)

 

18.  The YL Beam - Heather Holland ZS5YH (ZS July 2024)

19.  Jules Fejer - Engineer and theoretical physicist   - Brian Austin ex ZS6BKW (ZS July 2024)