Bring and Share meeting to celebrate our first VHF tests as AREG group on 23092018

As you will all recall we had a Group test on 230192018 to map the direct VHF communication links between OM's QTH.

That was a successful attempt and now we have a better picture about the  reachability of VHF stations directly without using any infrastructure based relay system.

At the same time we have identified difficult to reach areas and areas where we do not have VHF stations.Together we are working on solutions to address these issues.

Maps of the direct links mapped so far can be seen and  downloaded from the link

VHF direct links maps

The Saturday meeting on 21101028 at Flic-En-Flac was also a success with the following attending

DM,BAL,BAN,BAM,FO,FP,BAK and few other guests

We had a demo of a simple VHF repeater which can easily be installed at one's QTH.

We also had a fruitful discussion about the VHF tests carried out on 23092018 and the way forward.

Succulent Briyani home made by BAN was served and others present shared their goodies.

One incident worth noting and worth remembering  is the  manifestation of  team spirit that exists within AREG group .

FO had a car breakdown due to battery charger malfunctioning and everybody helped to push the car to make it start.At one point the battery had to be replaced and BAL provided his spare battery to do so with everyone giving a helpful hand.

FO thanks everybody for this  fraternal  gesture.

Some pictures of the meeting can be seen at the following address

Pics at F-en-F

FSQ working in French/Comment travailler avec le mode FSQ.

Please download tutorial in french  from below link on how to use FSQ .

FSQ Tutorial/Tutoriel FSQ 


Telecharger le document en franc,ais sur le mode  FSQ  en cliquant  le lien ci-dessus

NVIS File transfer from reunion using THOR 16,22,micro

Successful file transfer from FR1GZ to 3B8FO  and 3B8DM yesterday night at 20.00 hrs L for one hour. 

File and image transfer using thor of FLDIGI underf  NVIS setup and VHF/UHF  has been proven to work superbly well at all frequencies.

MT63 using VHF/UHF has also been proven to be a superb mode for file and image transfer using audio coupling without using an audio interface such as signalink.

I  encourage OMs to get familiar with these modes as they are crucial for emcom.

I shall be publishing videos on these in the near future.

A sample file transferred is shown below

==================================================================

<flmsg>4.0.7
:hdr_fm:21 
FR1GZ 20181810170025
:hdr_ed:21 
FR1GZ 20181810170025
<plaintext>
:tt:18 General Message06 
:to:5 RASEC
:fm:5 FR1GZ
:dt:8 18/10/18
:tm:6 21:00L
:sb:8 EXERCICE
:mg:538 EXERCICE EXERCICE EXERCICE

        AGIR APRES ACTIVITE VOLCANIQUE
  
- RESTEZ A L’ECOUTE DES CONSIGNES SUR LA CONDUITE A TENIR, EMISES PAR LES RADIOS ET STATIONS DE TELEVISION.
- ÉVITEZ DE VOUS ELOIGNER DE VOTRE DOMICILE, SAUF EN CAS DE CONSIGNES CONTRAIRES DES AUTORITES.

- ENVISAGEZ L’EVACUATION DES MALADES OU BLESSES ET DES PERSONNES A MOBILITE REDUITE.
- ENLEVEZ, DES QUE POSSIBLE, LES DEPOTS DE CENDRE VOLCANIQUE SUR LES TOITS DES MAISONS.
- ÉVITEZ DE TELEPHONER POUR NE PAS ENCOMBRER LES LIGNES.


EXERCICE EXERCICE EXERCICE

=================================================

NVIS tests using THOR data protocol with Reunion and 3B8DM

Yesterday and the day before 3B8FO conducted highly successful NVIS tests  on 40m and 80 m with FR1GZ using Thor 11,22 and Thor micro .

Time of tests 17.00 L to 21.00 L

Decoded signal from Reunion on 40 m using THOR micro under very adverse conditions even when no audio signal is heard on the receiver and only noise is heard.

File  and picture  successfully transferred from 3B8FO to 3B8DM yesterday night on all frequencies 80m,40m,30m,20m,15m,10m,6m,2m using thor 5,11,16,22,micro under NVIS conditions.

Useful sites

Real time propagation info.

http://www.idahoares.info/current_propagation.shtml

Simple high gain 2m/70cm colinear antenna.

http://www.m0zpk.co.uk/2m-144mhz-70cm-430-mhz-coax-collinear/

Coming GEO satellite

https://amsat-uk.org/satellites/geosynchronous/eshail-2/

Load of info about practical antennae

http://www.pg1n.nl/articles.php?lng=en&pg=367

Standard MARS message transfer from Reunion using THOR 16 from fldigi on 40m and 80m

Successful file transfer from Reunion using NVIS and Thor16 of  Fldigi.

Below is one message in FLMSG  format.

With FLMSG the message is opened as a normal readable file 




<flmsg>4.0.7
:hdr_fm:21 
FR1GZ 20181110164042
:hdr_ed:21 
FR1GZ 20181110164042
<mars_army>
:pre:1 P
:dtg:16 111640Z OCT 2018
:fm:30 ADRASEC PREFECTURE SAINT DENIS
:de:5 FR1GZ
:nbr:2 02
:to:99 ADRASEC SOUS PREFECTURE ST PIERRE
ADRASEC SOUS PREFECTURE ST PAUL
ADRASEC SOUS FREFECTURE ST BENOIT
:info:9 AUX RASEC
:subj:9 CONSIGNES
:text:579 EXERCICE EXERCICE EXERCICE

RISQUE SEISME 

VOTRE HABITATION EST SITUEE EN ZONE DANGEREUSE.
- EVACUEZ IMMEDIATEMENT LA ZONE OU VOUS VOUS TROUVEZ, DANS LE CALME.
- COUPEZ L’EAU, L’ELECTRICITE ET LE GAZ AVANT DE QUITTER VOTRE DOMICILE.
- MUNISSEZ-VOUS DE VETEMENTS DE RECHANGE, NECESSAIRE DE TOILETTE, MEDICAMENTS INDISPENSABLES, PAPIERS PERSONNELS ET UN PEU D’ARGENT.
- FERMEZ VOTRE DOMICILE A CLE.
- REJOIGNEZ LE LIEU ACCUEIL DE VOTRE ARRONDISSEMENT.
- INFORMEZ VOTRE MAIRIE SI VOUS NE REJOIGNEZ PAS LE LIEU D’HEBERGEMENT PREVU PAR LA COMMUNE.


EXERCICE EXERCICE EXERCICE

JS8CALL

FT8CALL is no more.It has been replaced by JS8CALL.

You may download it from https://groups.io/g/js8call/wiki/Download-Links.

Enjoy.

IS THE WORLD READY FOR THE NEXT BIG TSUNAMI?

https://foreignpolicy.com/2018/10/04/is-the-world-ready-for-the-next-big-tsunami/

Nvis tests with Reunion using bpsk63 ,flmsg and fldigi

Please see message from Yvons FR1GZ.

FR1GZ Yvon <fr1gzyvon@gmail.com>
To:
3B8FO
Cc:
3B8DU

Oct 5 at 3:05 PM

Hi to all,

Yusuf,
J'ai bien reçu toutes vos transmissions hier soir aussi sur 40 que sur 80m.
le fichier est bien décodé.
Je ne pouvais vous transmettre mon fichier car nous étions en exercice avec plusieurs stations RASEC.
Comme je suis la station directrice, je ne pouvais pas sortir du but de cette exercice.
Mais ce n'est que partie remise. On trouvera un moment tranquille pour faire nos essais.

Amicalement

Yvon

Emergency Kit

Some thoughts on emergency kit we need to prepare for QTH based/mobile operation

Ready Rig
Ready Antenna
DC power
First aid kit
Food stuff
Tools

We can customise  according to availability and our individual needs.

When the Activation Call comes, we won’t have time to hunt for things!

NVIS tests with Reunion Island using FLDIGI and FLARQ

Successful  tests have been carried out with FR1GZ and FR5FZ   of ADRASEC 974.

Reunion is using BPSK63 of FLDIGI and standard messages of  FLMSG with NVIS for their emcom structure.I have been told they they do not wish to rely solely on the vhf relays as they have had problems in the past and during catastrophic conditions it is almost impossible to deploy mobile vhf relays and that's why they are including  the HF NVIS solution as part of their emcom structure.

Bilan direct vhf voice exercise on 230918 using 144.550 MHZ

The exercise has been a complete success with the following stations taking part .
FO,DU,FV,GZ,BAN,BAL.

On 290918 further tests were done with CW and DM .

A spreadsheet with details of the exercise has been circulated together with terrain maps showing all links have been circulated to all via mail.

Further tests will be carried out in the coming days and we shall all put our heads together to analyse the data and find solutions for the areas that have not been covered and for difficult areas.