# \#multitx

**URL:** https://forums.digi.com/tag/multitx/1819.md

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## [MultiTX behavior on WR21](https://forums.digi.com/t/multitx-behavior-on-wr21/13965)

<div class="topic-metadata">

**Author:** [@dbweiner](https://forums.digi.com/u/dbweiner)\
**Replies:** 1\
**Last updated:** [January 20, 2015, 10:42am UTC](https://forums.digi.com/t/multitx-behavior-on-wr21/13965 "2015-01-20T10:42:06Z")

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I have set up a MultiTX configuration on a WR21 serial port which always uses port 1600. I have tested it out on a computer whose address and port number matches one of the configured address for sending and it works cor…