ZMQ SUB Message Source

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The ZMQ SUB Message Source block receives messages from a ZMQ SUB socket and outputs async messages. This block will connect to a ZMQ PUB Message Sink or a non-GNU Radio ZMQ socket.


(R): Run-time adjustable

ZMQ socket address specifier. The format of the address is tcp://*:port where * should be for localhost.
Note: If the Source and Sink blocks are on two different computers on the same LAN, then the IP and port number of the Sink block must be specified on each end of that connection. For example, if the Sink is on IP and the Source is on IP, both Source and Sink blocks must specify the Sink IP and port (
Receive timeout in milliseconds, default is 100ms.

Example Flowgraph[edit]

In this example, the ZMQ SUB Message Source block is receiving a message and displaying it on the user's terminal.

PUB SUB msg demo.png

Source Files[edit]

C++ files
Header files
Public header files
Block definition