OpenQSP
GitHub
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Messaging beyond the Internet.

OpenQSP is an open messaging platform for amateur radio designed to keep messages moving when conventional Internet access is unavailable. It bridges Internet services and radio-based transports through a common messaging layer.

Transport independent messaging
Radio & field clients
Portable stations can originate and receive messages through available radio transports.
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OpenQSP
Persistent messaging, routing, identities, delivery state and synchronization independent of the transport used.
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Internet clients
Applications connect through HTTPS and WebSocket whenever regular Internet connectivity is available.
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Multiple transports

A message is not tied to one network. OpenQSP supports Internet and amateur-radio transports such as APRS, where the server operates using the identity OQSP.

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Store & forward

Messages can be stored centrally and delivered when the recipient becomes reachable through an available transport.

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Open protocol

OpenQSP is an experimental open-source project. The protocol, server and clients are being developed with interoperability in mind.

Heard OQSP on APRS?

OQSP is the APRS identity of the OpenQSP server. If you see OQSP on the air, on APRS-IS, or on an APRS tracking service, it is the OpenQSP server exchanging messages with amateur-radio stations through the APRS network.

OpenQSP uses APRS as one of its radio transports. Compatible clients can exchange OpenQSP messages through APRS when conventional Internet connectivity is unavailable.

Traffic addressed to or transmitted by OQSP may therefore contain OpenQSP protocol messages used for message delivery, acknowledgements and synchronization between radio clients and the OpenQSP server.

OQSP APRS APRS-IS OpenQSP APRS identity

Built for imperfect connectivity.

Internet connectivity is excellent when it exists. OpenQSP explores what happens when it does not: mountain operations, portable amateur-radio stations, emergency situations and locations where only a low-bandwidth radio path may be available.

Applications interact with a common messaging model while the transport layer determines how each message reaches the OpenQSP network.

APRS APRS-IS HTTPS WebSocket Store & Forward Amateur Radio Open Source