Air-Stream Wireless is a horizontally layered network architecture and funding model that separates physical access from service provisioning.
In other words Air-Stream Wireless is all about physical access rather than content, which is by the most part, provided by the users of this network.
Although some content and services are offered to members upon joining the association, they have been offered freely by existing members and so are subject to conditions.
Note: Not all services are listed here and may change from time to time consequently no responsibility is given for bandwidth or service continuity.
Members: Please note that all services made available on the network must comply with the terms set out by the members code of conduct.
Some of these services provided by members and participating community groups include:
| The members database is so much bigger with Node creation, IP allocation, mapping modules, terrain, satellite and LOS signal propagation... Exclusive to Air-Stream members only the new system designed by Troy Vodopivec combines membership information. LDAP and our IP Database with the power of Google's mapping API, signal propagation prediction to offer members a carrier class system that rivals any other community wireless network in Australia. Please note, this is continually being improved and so subject to conditions, please support this excellent project with constructive bug reports. |
The following pages include information about specific Amateur Radio content that is accessible or could be easily accessible on the Air-Stream network. If you are a member and are a Amateur Radio operator please add your services here. Affiliated clubs may also add information about services available, please contact the committee for details.

Please note:Members shall ensure all network servers with content not intended for non-licensed Amateur Radio operators only, are secured appropriately.
Many Amateur Radio enthusiasts have taken to podcasts and video to help tell the Amateur Radio story. But Amateur Logic TV focuses entirely on video on it’s site.
Programs are about half hour for each one, and well worth watching by Amateur Radio and electronics enthusiasts alike.
Air-stream Wireless: http://10.112.1.10/files/amateurlogic - I'll try to make a better mirror in time, currently all files are the hi res video.

Some software that can be used include:
* http://www.echolink.org/
* http://www.irlp.net/
Amateur Radio operators may have connections from their digital packet network into the Air-Stream network
Packet radio makes use of a protocol called AX25, which makes use of modulation of a radio frequency signal. However, AX25 can also be carried over the TCP/IP protocol (which the Air-Stream network uses). Hence many Amateur Radio functions can run in an integrated, seamless fashion over the wireless network, and many new functions become feasible due to its much higher speed.
This page lists some of the functions that are possible.
The Winpac program used by many amateurs to access their local BBS already supports connection via TCP/IP. Hence any BBS that is connected to the Air-Stream network can be accessed over that network, but at much higher speeds and with lower delays.
BBS’s can forward mail and bulletins over the Air-Stream network.
With higher speeds, it is possible to keep libraries of the modern and often larger programs many amateurs now use, so that people can easily download them without having to access the Internet.
Amateur systems can have web pages, containing information, read bulletins, etc which can be accessed over the network, without Internet access.
Location traffic and information can be transmitted
DX-Spots (notification of rare stations) can be accessed over the wireless network.
DNS (Domain Name Service) is the process by which names are translated into IP numbers, and vice versa.
For DNS enquires contact the committee
Note: DNS systems are currently being upgraded, please check your member email for updates.
Air-Stream Members receive an email account when they join, which is to be used for all formal correspondence within the group. The username you provided on your application form is used to set up your account, full details are emailed to your alternate address when it is created.
To reset your email password, just use the Member Control Panel.
Air-Stream mail services are configured to use TLS/SSL (Secure Sockets Layer) connections. This provides a secure medium for your mail application to communicate with the server, and is required for access via the wireless network.
All secure Air-Stream services use certificates that are signed by the "Air-Stream Certificate Authority". To remove the warning pop up you receive in your browser/email client, you need to add the Air-Stream Root Certificate to your software's keychain. This will allow your software to correctly verify any certificates signed by Air-Stream.
See Securing Air-Stream Services with TLS/SSL for more information.
Please see SPAM Filtering Usage page for more information.
Secure mail services can be accessed from anywhere via an Internet web browser, by visiting this address: https://mail.air-stream.org.
* If you are having difficulty with the configuration of your favorite mail application, try using the Web Mail as fall back for support, or to contact the committee.
When using IMAP protocol your email client connects to the server and views messages directly, downloading them only if required. Messages are usually left on the server until deleted at a later stage. IMAP is used by the WebMail client.
Incoming IMAP Server: mail.air-stream.org
Username: your Air-Stream username
Password: your Air-Stream password
IMAP Prefix: none
* Service available on insecure port 143 from the Internet or secure port 993 from the Internet or wireless network.
* Clients connecting from the wireless network must enable 'SSL' in their mail clients.
POP3 is the most common external mail retrieval method. The client checks for new messages on the server and downloads them, after which they are deleted from the server. Optionally they can be left on the server for a period before deletion (configured in your email client).
Incoming POP Server: mail.air-stream.org
Username: your Air-Stream username
Password: your Air-Stream password
* Service available on insecure port 110 from the Internet or secure port 995 from the Internet or wireless network.
* Clients connecting from the wireless network must enable 'SSL' and use port 995.
See this page for instructions on how to do this in most common email clients.
Air-Stream's mail server uses Authenticated SMTP with TLS encryption.
What this means is that in order to relay mail through the Air-Stream server (send to non Air-Stream accounts) you must configure your mail application to login with your username and password first. To ensure these credentials are kept safe, this must be done over a secure channel (using TLS/SSL). Most email clients support this feature, by entering your username and password when specifying the SMTP server. There is usually also a tick box selection for the use of TLS or SSL.
Outgoing SMTP Server: mail.air-stream.org
Username: your Air-Stream username
Password: your Air-Stream password
* Relaying is only available to authenticated clients.
* Relaying is available using TLS on port 25 from the Internet or secure port 465 from the Internet or wireless network.
* Clients connecting from the wireless network must enable 'SSL' and use port 465.
If you have any comments or questions please contact the committee
Remember to use your Air-Stream Wireless member email account, as this is one of your key contact points to important information and other members:
Note: If you are having any difficulties using your member e-mail or jabber accounts or you have forgotten your LDAP details please contact committee and we'll fix it for you ASAP.
A mail list is a list of e-mail addresses identified by a single name, when an e-mail message is sent to the mailing list name, it is automatically forwarded to all the addresses in the list.
For members of Air-Stream Wireless an e-mail to the name "members" the e-mail will be sent to all other Air-Stream members who have an active email account. To prevent spam being sent to this address and so all other members, only an active member account may send emails to this name.

Air-Stream Mail Services now utilise the DSPAM content filtering package to filter incoming emails.
DSPAM is another fine open source product, see the SourceForge project page for more info: http://dspam.sourceforge.net.
As emails arrive they are identified as spam or not spam and tagged with a special signature so that the system can remember its choice. You can see this signature along with some other info if you view the message headers:
X-DSPAM-Result: Innocent X-DSPAM-Processed: Tue Aug 18 18:21:18 2009 X-DSPAM-Confidence: 0.9899 X-DSPAM-Probability: 0.0000 X-DSPAM-Signature: 4a8a6b86266376863418247
Since the DSPAM starts out knowing nothing, initially it thinks nothing is spam, so users are required to train the filter by telling it what is and is not spam. This is done by either moving the falsely identified message to a special folder, or forwarding them to the DSPAM system for retraining. DSPAM then reads the signature from the email and uses it to change its decision about that message.
After a bit of training, DSPAM will be able to accurately recognise spam messages. To ensure it doesn't filter out any of your legitimate mail you should check the SPAM folder regularly, read on to find out how.
When a message arrives that is identified as spam it will prefix the subject line with the word [SPAM] and moved it into a special "SPAM" folder within your Inbox. To check what's in this folder simply log onto the Web Mail or have a look in your IMAP client.
Use the training methods below if you find DSPAM is incorrectly tagging your messages.
As with any learning content filter, occasionally the system gets it wrong and either doesn't tag a message a spam when it really is (false-negative), or tags it as SPAM when it really isn't (false-positive).
For those of you who use IMAP or Web Mail, training the filter is simple. A new namespace called "Public" has been created, with 2 folders HAMLEARN and SPAMLEARN. Users can move messages into these folders and they will be used to retrain the system periodically, then removed. These folders are visible by all users so keep in mind that anything you move there can be seen by others.
SPAMLEARN: Move false-negatives into this folder. If a spam makes it into your inbox, you should put it here.
HAMLEARN: Move false-positives into this folder. If a legitimate message is filtered out of your inbox (you found it in the SPAM folder), you should put it here (as long as you don't mind everyone being able to read it). Alternatively see Method 2 below.
As an alternative to the above method, you can also forward any falsely identified emails to the following addresses:
ham _at_ air-stream dot org: For false-positives.
spam _at_ air-stream dot org: For false-negatives.
If you use this method, ensure that the email is being forwarded in its entirety, with all email headers included.
FTP (File Transfer Protocol) is generally used for file sharing and there are many FTP servers on the network setup by member for use by other members.
It is also important to note that all Core network routers do not offer FTP services other than for file transfer speed testing.
If you have an FTP server and wish to share it with other please add your IP or URL as a comment here.
However members who do provide FTP servers should be aware that they are solely responsible for its content, member’s should use their discretion and make appropriate decisions about what content is made available freely; who can contribute content and access rights you should apply.
Before accessing or copying files to and from a FTP server please do so responsibly and take the same precautions that you would when using Internet.
The following games servers are available over the wireless network:
You need LFS Join for the in browser connect to work.
Sometimes users setup temporary servers for a quick game of their choice, Most decide on the IRC channel
This is a question that is often asked and the short answer is "No But" this is because anything can be shared over a distributed WAN , including Internet access.
Networks like Air-Stream Wireless are not about service provisioning but rather physical access and do not hold the necessary licenses to permit the sale of services including internet access.
Although there are a number of multihomed and internet services available on the network it is important to note that membership fees are not a fee-for-service and that any service that is available has been volunteered freely by a member or another participating group.
But simply individual members or participating community groups may use the network to share their Internet access with others, provided there are no financial rewards involved eg: offered freely without condition.
Make free phone calls between members without time limits, over the Air-Stream network. Sorry no public phone system access.
Contact committee to setup an account.
There is free sip phone software and many hardware sip phones on the market.
Links to software see www.voip-info.org/
The most popular used on the Air-Stream network is X-Lite
There is also SJphone
The VoIP server is located at Melrose Park.
IP: 10.114.2.4
Port: 5060
Set these details on your phone or program including your username and password. account details are given to you when your VoIP account is made.
Air-Stream is operating Asterisk server and is available for all members to use. Asterisk is a complete PBX in software. It runs on BSD/Linux and provides all of the features you would expect from a PBX and more.
Asterisk does voice over IP in three protocols, and can interoperate with almost all standards-based telephony equipment using relatively inexpensive hardware.
For more information about Asterisk visit www.asterisk.org
Currently this is in test mode but working, if you would like a phone account contact committee to setup.
Directory of current numbers are here http://10.114.2.4/panel/
Air-Stream Wireless is operating an Asterisk Server over wireless which is available to all members to use. Asterisk is a complete PBX Open Source software system. It runs on BSD/Linux and provides all of the features you would expect from a PBX and more.
Why not enjoy this IP experience and keep in touch with your fellow members any time. More Information here...

I've just setup two IP phones this weekend and was surprised how simple the whole process was.
My partner Ann talks to her mother on the phone each day and often her mother calls us as well, so they are on the phone to each other at least three times a day if not more.
So I thought it was about time I did something about this, given that I had convinced Ann’s parents to be a host one of Air-Stream’s APs on their roof, it seemed an ideal situation to really test the voip system over wireless. Specially as it will give her parents another really good reason for keeping those strange Antennas on their roof, other than just good community spirit.

At home I have set up a local AP which is on the Air-Stream network and could already connect to this using a wireless SIP phone I have ZyXEL P2000W WiFi .
I also had another Grandstream BudgeTone 101 which is an Ethernet phone so to make that wireless I connected directly to an old Minitar. This was the idea choice for Ann’s parents as it looks and operates like any domestic phone. The Minitar I told them was just a modem to connect them on the network. This was an easy concept for two people in their late +60s.
The Minitar was used to associated to the AP on their roof and then it was just a matter of configuring the handset to have an IP on the Air-Stream network.

I got an account for them on the Air-Stream Asterisk Server and once this was done I configured each handset with outgoing and proxy SIP settings to pont to the Asterisk Server at 10.114.2.4.
It really worked well and the sound quality is better than that of a domestic phone other than the odd click here there, due to data traffic on the network, but I expect Qos might fix this, but still not that you would notice.
Also the handsets work just like a normal phone and it took Ann’s mum no time to start using it frequently ;-|
IRC enables users to discuss issues, make plans, help out others with their wireless projects, chat instantly with others, etc.
Although not the official voice of Air-Stream and now strictly Air-Stream members only, it can still be a useful source of information.
To use this service you will need your Air-Stream members login.
There are multiple IRC servers linked together, these can be accessed via the Air-Stream wireless network and the internet using a IRC client.
Air-Stream IRC address:
irc://irc.air-stream.wan:+7000
irc.air-stream.org - Internet
10.108.1.73 - Valley View
10.114.2.29 - Melrose Park
coming soon - Mawson Centre
*Note port 7000 SSL connections only
Air-Streams IRC Servers now require member login to authenticate and use the IRC network.
To authenticate you are required to use your Air-Stream username as the "Identd User ID" or "Username" and your password must be entered in the IRC Server "Password" field.
For more detailed instructions please see the how to pages provided by members below.
More info on SSL with mIRC: http://www.mirc.co.uk/ssl.html
OpenSSL project web page: http://www.openssl.org/
Due to the nature of IRC, moderation of content is difficult to control and thus the actions of users on the IRC server remain the responsibility of themselves, not Air-Stream Wireless Inc. Server operators, channel operators or channel half operators to reprimand disruptive users. Administrators of this server reserve the right to intercept and monitor any network traffic in response to suspected denial of service attack or other technical misuse. By connecting to these IRC servers you understand and agree to these terms and conditions.
To provide another opportunity to ask questions outside our regular monthly meetings we are soon to open a public IRC channel via this website each week.
The aim of this project is to allow anyone to ask direct questions in real-time about our community and the technology used. More importantly have these answered by the people who have been building and maintaining it.
To ensure these people are available on the IRC channel we will be only opening the channel on a specific night each week, local time. More information coming soon...

The Air-Stream Wireless Jabber service provides a feature rich environment for member interaction utilising the Jabber protocol and is available both on the Air-Stream wireless network and the Internet.
Jabber is a collection of open, XML-based protocols for instant messaging and presence information. Jabber-based software is deployed on thousands of servers across the Internet and is used by over ten million people worldwide.
The Jabber server will be available to Air-Stream Members only and utilises member LDAP for authentication.
The service can be accessed over the Internet at chat.air-stream.org or over wireless at 10.114.2.2
Client applications are available for most OS platforms see their website www.jabber.org/ for details.
Note: This guide applies to people using the Mac OS X operating system.
Note: you can install Adium anywhere you like, it doesn't have to be the Applications folder.







Spark is a barebones Jabber client made by Jive Software. Its avaliable for Mac OS X, Linux and Unix, and Windows from http://www.jivesoftware.org.
Once downloaded, the configuration process should be similar on all operating systems. You will be presented with the following screens the first time you run Spark.



The Multi Router Traffic Grapher (MRTG) is a tool to monitor the traffic load on network links. MRTG generates HTML pages containing PNG images which provide a LIVE visual representation of this traffic.
Check 10.114.2.2/mrtg/ to see what it does on the wirless network (note not all routers are currently listed)
NTP stands for Network Time Protocol, and it is an Internet protocol used to synchronize the clocks of computers to some time reference.
ntp.air-stream.wan [10.114.2.3] at Melrose Park
[10.107.0.2] at Uleybury
- Access your 'Date and Time Properties' and select the 'Internet Time' tab.
- Type in your preferred address and apply.
- You can also update instantly by clicking the 'Update Now' button.

Note: sometimes it may not work the first time or an error might come up but it should eventualy synchronize.
The following frequencies are generally accepted spectral regions for radio astronomical observations in radio astronomy. There are others frequencies, but I've chosen to list the regions that maybe most accessible by an amateur radio astronomer.
The above bands are based on Australian Radiofrequency Spectrum Plan - Radiocommunications Act 1992
The lower segments are used for solar and Jupiter observations; the 73, 150 and 406 MHz segments are quite popular for pulsar, and the 1.4 Ghz band is used for hydrogen line measurements, which seems to be the most popular with many amateur radio astronomer. Aslo made even more so by the Seti League Program
In very simple terms the equipment to build a Radio Telescope are:
The signal strength of the radio is recorded over a period of time, signal levels will increase and decrease as a radio emitting object passes across the sky. Over number of days it is possible isolate radio astronomical observations from ground and satellite interference.
Radio Astronomy links:
Radio astronomy - Wikipedia, the free encyclopedia
Hydrogen line - Wikipedia, the free encyclopedia
The Parkes Observatory
Amateur radio astronomy with SIMPLE 20 MHz arrays
Using a method called “Meridian Drift Scan Observation” it is possible to build up an image of the sky at radio frequency not visible using optical telescopes. As seen below.

The Radio Sky: Tuned to 408MHz Credit: C. Haslam et al., MPIfR, SkyView
Drift scans plot the sky line by line using the earths rotation from East to West then adjusting the antenna every 24 hours over a series of elevations separated by somewhat less than the angular beamwidth of your antenna. If you had a beamwidth of say 10 degrees, you would then lower the elevation by about five to seven degrees and making a strip chart for that elevation. You would continue the process until the beam was point a bit above your horizon and then combine the data to make a 2 dimensional map of the sky. In reality, there is quite a bit more to do this, but this is the basic Idea.
Here are some more examples:
The Infrared Sky (and more)
Radio interferometry is a powerful tool that can be used for a number of diverse applications. A radio interferometer consists of more than one antenna tuned to receive radio emissions from the desired frequency. The signals from the receivers are then cross-correlated to produce a "fringe pattern". This fringe pattern can then be analysed to produce a result ranging from an image of a distant astronomical object to the location of a nearby terrestrial or extra-terrestrial radio emitter.
Links:
Fringe Dwellers - Simple Radio Interferometry
History of astronomical interferometry
Many Air-Stream services are configured to use TLS (Transport Layer Security) also known as SSL (Secure Sockets Layer). This provides a secure channel for your application to communicate with the server, and prevents anyone from intercepting your information. This is extremely important on a shared ethernet medium like 802.11 wireless, where packets can be 'sniffed' by other clients while in transit from one location to another. Because of this fact, access to important Air-Stream services from the wireless network will require you to have a secure connection.
For more information on the history of TLS/SSL, see this article on Wikipedia.
All secure Air-Stream services use certificates that are signed by the "Air-Stream Certificate Authority". This is a special private key that is kept in a secure location with only physical access allowed to it. The Root Certificate is the special public key clients can use to verify the identity of any server using an "official" signed certificate.
For more information on what a Root Certificate is, see this article on Wikipedia.
To remove the warning pop up you receive in your browser/email client, you need to add the Air-Stream Root Certificate to your software's keychain. This will allow your software to correctly verify any certificates signed by Air-Stream.
Download the Air-Stream Root Certificate here
We are looking for volunteers to create guides for adding the root certificate to commonly used applications. If you have successfully done so and would like to create a short how-to with a few images, please forward it to the committee for inclusion in this document.
If you are providing a service on the Air-Stream network and would like an "official" signed certificate to use, please forward an email to hat _at_ air-stream dot org with full details of your service, its IP address, hostname, purpose, etc.
Network administration have updating the 'line of sight' data for all nodes in the Air-Stream node database to add a feature which allows you to flag a node as 'needing LOS update'. The processing will then be done periodically in the background, to keep this data up-to-date!
You can view the line of sight plot for a node by clicking it and selecting 'Show LOS Coverage' from the popup window. Please note that this plot uses digital elevation data and thus only accounts for land mass, not trees, buildings, or other obstructions.
These radio stations are operated by Air-Stream members, utilizing their and other Air-Stream members time and resources.
Uptime of these radio stations are not guaranteed due to the volunteer nature of Air-Stream.
Anyone is welcome to grow the list of available stations on the Air-Stream network.
To be able to listen to these radio stations, you require a program on your computer which is capable of playing streaming MP3, OGG or Shoutcast streams. The following programs support the playback of these streams:
Apple iTunes Mac OS X and Windows 2000/XP
Nullsoft Winamp Windows 9x/NT/2000/XP
XMMS Unix/Linux with X11
If you have one of the above programs, clicking on a play link below for a selected station, should begin playing the stream.
*Only available on Air-Stream Wireless Network
Air-Stream Members Streaming Radio - Station List
Web pages are on the Air-Stream network and are run by HTTP (hyper text transfer protocol) servers. Some core routers have a HTTP server while users can setup a HTTP server and display web pages if they want too.
Due to changes in DNS and test DNS servers links here may not work. IPs will be listed as much as possible.
Most core routers running HTTP have a basic page where you can download a speed test file.
Clients may choose any type of service they would like to run.
Air-Stream members now have access to a new profile administration panel.
members.air-stream.org allows you to update your important contact information and change your password regularly. Give it go and let us know what you think.
See the rest of this article for news and updates..
30/3/2007 PROFILE EDIT ISSUE A small bug has been fixed whereby updating your profile would invalidate your LDAP password. This no longer happens. If it has happened to you, just log into members.air-stream.org and 'Change Password' to update your LDAP data.
Please let us know any other issues you come across.