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Amateur Radio Digital Open Protocol (ARDOP) - A newer open radio protocol for Winlink users for transmission of e-mails during disasters or by mariners


A newer open radio protocol for Winlink users, and for amateurs everywhere is available already. ARDOP (Amateur Radio Digital Open Protocol) is a new (from 2018) cooperative radio protocol project in which the Amateur Radio Safety Foundation and Rick Muething, KN6KB, of the Winlink Development Team are proud to have a major role. ARDOP will ultimately replace WINMOR in the Winlink system because of its superior features and multiple platform (OS) support.

The protocol design is open, and the software implementations will be open-sourced. This means you can expect the protocol to take different forms, like a virtual TNC using sound-card software on Windows, Linux, Apple OS X, iOS, and Android, or in hardware, like a USB plug-in or 'add-on box' using today's low-cost DSP CPU chips.

This is an important step as one of the most efficient protocols has been the proprietary Pactor 2 and above, but modems cost easil... Show more...
 
Yes, ARDOP does work, often more robust than VARA. I've used them both, in addition to VARA FM.
Of course, VARA FM is used for VHF/UHF FM transmissions. The throughput for VARA FM can be quite impressive!
#winlink #amateurradio #hamradio
 

Winlink 2000 - a worldwide system for sending and receiving e-mail over radio without the Internet


Since this system does not rely on the Internet it is widely used by mariners, RV campers, missionaries, and various agencies who need to communicate when the Internet is not available at the last mile location.

The Winlink system consists of a group of Common Message Servers (CMS) placed at various locations around the world. These servers connect via the Internet to Radio Message Servers (RMS) in many geographic locations to form a star network configuration. The Radio Message Servers are the UHF, VHF, or HF RF gateways into the Winlink system. The final component on either side is a client computer device running the software to send/receive messages through your radio. In Internet terms you could think of the Radio as a modem (very loosely speaking).

The client computer will generally run Winlink Express if it's a Windows computer, or AirMail if a MacOS (Airmail can also run under WINE or CrossOver on Linux). Yes Pat and Paclink will run on Linux but it is... Show more...
 

Winlink is a worldwide radio email service that uses amateur-band radio pathways where the internet is not present and is capable of operating completely without the internet


This system can get messages through where even voice is not practical to use, as it uses a store and forward system which routes using radio. It is similar to the way normal e-mail would forward automatically across the Internet choosing the best route around any problems. Winlink does the same but via radio pathways.

More complex (and accurate) messages can be composed and then only require a few retries and short throughputs to get the message transmitted, and it can be retrieved in the same manner. This is ideal for say maritime vessels which may only get sporadic periods of communication but where they can in that time transmit and receive any messages.

Message services can include email with attachments, position reporting, weather bulletins, emergency and relief communications, and message relay.

Typically if an area is hit by a disaster and normal communications are down,... Show more...
 
Winlink is a worldwide radio email service that uses amateur-band radio pathways where the internet is not present and is capable of operating completely without the internet

This system can get messages through where even voice is not practical to use, as it uses a store and forward system which routes using radio. It is similar to the way normal e-mail would forward automatically across the Internet choosing the best route around any problems. Winlink does the same but via radio pathways.

More complex (and accurate) messages can be composed and then only require a few retries and short throughputs to get the message transmitted, and it can be retrieved in the same manner. This is ideal for say maritime vessels which may only get sporadic periods of communication but where they can in that time transmit and receive any messages.

Message services can include email with attachments, position reporting, weather bulletins, emergency and relief communications, and message relay.

Typically if an area is hit by a disaster and normal communicatio... Show more...
 
\https://plus.google.com/+DanievanderMerwe/posts/3oNVNsAf9hT

Winlink is a worldwide radio email service that uses amateur-band radio pathways where the internet is not present and is capable of operating completely without the internet

This system can get messages through where even voice is not practical to use, as it uses a store and forward system which routes using radio. It is similar to the way normal e-mail would forward automatically across the Internet choosing the best route around any problems. Winlink does the same but via radio pathways.

More complex (and accurate) messages can be composed and then only require a few retries and short throughputs to get the message transmitted, and it can be retrieved in the same manner. This is ideal for say maritime vessels which may only get sporadic periods of communication but where they can in that time transmit and receive any messages.

Message services can include email with attachments, position... Show more...
 
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