OpenWRT and amateur radio

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DD3AL
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OpenWRT and amateur radio

Post by DD3AL » Thu Nov 05, 2015 8:36 am

2015-04-29 21:27 GMT+02:00 Jens Wegener <jenswegener@t-online.de>:

Salut, Waldek!

We are a group of radio amateurs (akafunk) of the university of Brunswiek "TU Braunschweig" http://akafunk-bs.de and currently working on the ath9k, iw and hostapd as of the current trunk of OpenWRT "Chaos Calmer" to be used on the amateur radio bands. The work is mainly done by Stefan DD1SL and me (Jens) DD3AL. Other group members acting to set up antennas and networking (e.g. VoIP).

Our main target is to make available cheap WLAN APs for experiments by radio amateurs. Therefor the classical HAMNET is part of the story but we are planning to go more to the unknown land (e.g. mesh nets, mobile nets).

Until today we have ath9k and iw with negative channel numbering for 2.3 GHz and 802.11s up and running.

I read your posts on http://www.broadband-hamnet.org/hsmm-me ... 7-mhz.html . This resulted in the idea to support each other by sharing the knowledge to develop the story further on. What do you think about it?

73,

Jens

DD3AL@darc.de
jenswegener@t-online.de

[...]
Last edited by DD3AL on Mon Nov 09, 2015 6:30 pm, edited 1 time in total.

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Re: OpenWRT and amateur radio

Post by DD3AL » Thu Nov 05, 2015 8:37 am

On 30. April 2015 Waldek SPdwaONG wrote:

Hi Jens,


I have spent a few time to made changes in compact-wireless package to get possibility use OpenWRT with market devices , special with Atheros radio chip which allow working in our bandplan. We have test many different devices and working well with following devices:

Ubiquiti:

Nanostation 2

Nanostation M

Bullet

Nanobridge



Mikrotik RB411/112 ( we are replaced RoutersOS to our HamNET-Openwrt)


TPLink router like WR740/741 (which need put waterproof box + external antenna)


We use TPLink WA5210G which is compatibility hardware Nanostation 2 - nice device with internal 12 dBi antenna and with power output up to 800 mW (The device nned firest reflash from tplink to ubiquiti and after this we can put openwrt. Exist special software which do this.


For old devices like Nanostation 2 and TPLink WA5210G we use OpenWRT AA v12.07 for others we use OpenWRT BB 14.07.

Bellow our WWW pages
http://www.hamnet.ugu.pl/
http://forum.hamnet.ugu.pl/


We are on begining start create HamNET in Poland. We select Mesh Network technology instead typical infrastructure like AP <-> Station.


I have tested 802.11s but in is nice but only for short range devices and all direct visible. in wider area with multi hop compare to olsrd is not useful.

I chose Mesh Netwrok with olsrd because it is accurate to our activity and mesh network nice break long distance with intelligent finding optimal path/route. I know that olsrd use same part of bandwith for exchange information about status network but it is for us not problem. Yo maybe know that Mesh network is wide use by public network like Freufunk in Germeny, WLAN Slovenija etc.


Because we use older devices like Nanostation 2 and WA5210G , they have processor speed 180 Mhz for this reason we skip use uhttpd and LUCI to GUI. We use simple script to configure in console and simple WWW GUI to show main information about router and mesh network. Why because this devices working only as router and configure generally only one time on beginning for this reason we don't need nice web GUI to configure which consume processor power of router.


You can try our version firmware:

http://hamnet.ugu.pl/firmware/


When you put firmware on the router your PC will get Ip address via DHCP form 172.16.1.1 router and you can telnet to 172.16.1.1 and run

simple script


hamnet Callsign_Node IPAdress NetMASK QRA_locator


default is channel 247 2.362 Mhz with 5 MHz width


if you want to configure to 5 Ghz use script with name:


hamnet5 .......


it will be setup on 5.7 Ghz channel with 10 MHz width


You can change paramteres in /etc/config/wireless after firts configuration via 'nano' editor


After configuration and rebbot router you can see satus page: ttp://172.16.1.1:8080




[...]


It will be nice work together and find platform to create OpenWRT for HamNET to use with different technology like Mesh Network, 802.11s, infrastructure etc on hamradio frequency


73 Waldek SP2ONG
Last edited by DD3AL on Thu Nov 05, 2015 11:01 am, edited 1 time in total.

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Re: OpenWRT and amateur radio

Post by DD3AL » Thu Nov 05, 2015 8:39 am

none
Last edited by DD3AL on Thu Nov 05, 2015 10:58 am, edited 2 times in total.

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Re: OpenWRT and amateur radio

Post by DD3AL » Thu Nov 05, 2015 8:40 am

2015-04-30 14:03 GMT+02:00 Jens Wegener <jenswegener@t-online.de>:

Salut, Waldek!

Thanks for your fast response. I brought your information directly to the team and we will discuss it on our today’s meeting. You will get our feedback soon.


ciao

Jens


[...]
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Re: OpenWRT and amateur radio

Post by DD3AL » Thu Nov 05, 2015 8:41 am

On 30. April 2015 Waldek SPdwaONG wrote:

Hi Jens,


Ok no problem, I have small publication about HamNET Mesh Netwrok

http://hamnet.ugu.pl/download/HamNET.pdf


but unfortunately in Polish language because I have wrote this PDF for hamradio users in Poland.


But same picture it maybe will be useful to understand Mesh network wih OLSRD



73 Waldek
Last edited by DD3AL on Thu Nov 05, 2015 10:40 am, edited 1 time in total.

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ARCMAN forum and wiki

Post by DD3AL » Thu Nov 05, 2015 9:20 am

2015-10-05 13:50 GMT+02:00 Jens Wegener <jenswegener@t-online.de>:

...
BTW, just starting but filled up with informations soon http://arcman.de.

We will keep the forum in English, perhaps with some national forks.

We will have our presentation held on the INTERRADIO on Oct, 24.


ciao,

Jens - DD3AL

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Re: ARCMAN forum and wiki

Post by DD3AL » Thu Nov 05, 2015 9:21 am

On 30. April 2015 Waldek SPdwaONG wrote:

Jens,


Thank you very much for all information which are useful for us.

I have see on ARCMA WWW page and it is look like exactly we do in Poland. We make local networks base on OLSRD as fully self organized mashed network. I like this idea and we are use at current OLSRD but we are testing very interesting other protocol BABEL:

http://www.pps.univ-paris-diderot.fr/~j ... are/babel/
http://babelweb.wifi.pps.univ-paris-diderot.fr:8080/
https://github.com/jech/babeld
https://github.com/openwrt-routing/pack ... ter/babeld



73 Waldek SP2ONG

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Re: ARCMAN forum and wiki

Post by DD3AL » Thu Nov 05, 2015 9:22 am

On 06. Oct. 2015 Jens DD3AL wrote:


Salut Waldek,

as with all mesh nets we are close together. But our goal is a Mobile Ad-hoc Network. This means we are trying to be fully self-organized and dynamic on all layers. Therefor we use

- Layer 2 “path finding” B.A.T.M.A.N.
- Layer 3 zeroconfig
- Layer 4 mDNS and SD-DNS

Our ARCMAN should be used for

- mobile communication
- emergency communication in case of crisis

which means that all stations have to be autonom.

If we exchange our practical experience with eachone’s configuration we are able to improve our networks. More information will be on our website soon.


ciao

Jens


[...]
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Re: compare different mesh protocols

Post by DD3AL » Thu Nov 05, 2015 9:28 am

On 27. Oct. 2015 Jens DD3AL wrote:


Salut Waldek,

first I like to send you the presentation held on the amteur radio fair INTERRADIO 2015 last saturday in Hannover. Because of its technical nature it should be readable even without knowing German. The idea of an “internet in case of crisis” supplied by radio amateurs is something that applies to Pologne as well. You had the same problem as we had in Magdeburg.

The most important intention of ARCMAN is to be a Mobile Adhoc Network allowing to enter the network with portable and mobile equipment. For the extra picture I have no copyright (https://www.car-2-car.org) but it*s fine to show what we can do with a meshed network if we go beyond today.

The patches and configuration you will find soon on our web page. Without any doubt you are a radio amateur but because of the current discussion about the EU directive we like to record that binaries are only supplied to radio amateurs. Would you be so kind to send in a copy of your licence please? This allows us to give you access to the upcoming binaries.


ciao

Jens – DD3AL

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Re: compare different mesh protocols

Post by DD3AL » Thu Nov 05, 2015 9:29 am

On 27. Oct. 2015 Jens DD3AL wrote:

Salut Waldek,

the main difference is BATMAN creates a layer two “distributed” bridge whereas all other mesh protocols do meshing on layer three.


ciao

Jens

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