# \#xt09

**URL:** https://forums.digi.com/tag/xt09/1406.md

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## [RCM3400 TX/RX to XT09 is crash with Time out waiting for respond](https://forums.digi.com/t/rcm3400-tx-rx-to-xt09-is-crash-with-time-out-waiting-for-respond/16999)

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**Author:** [@kosta45](https://forums.digi.com/u/kosta45)\
**Replies:** 2\
**Last updated:** [June 30, 2016, 10:34am UTC](https://forums.digi.com/t/rcm3400-tx-rx-to-xt09-is-crash-with-time-out-waiting-for-respond/16999 "2016-06-30T10:34:19Z")

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RCM3400 TX/RX to XT09 is crash with Time out waiting for respond . I have a RCM3400 runnibg port C at 9,600 bout and port D running at 19,200 bout. The port C connected by wire to the computer running win 7 or 10 and …

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## [Proper settings, XT09, with 5 modems, 4 which xmt  ~ 80 bytes of data 10 times/s, and 3 which must rcv data from all 4?](https://forums.digi.com/t/proper-settings-xt09-with-5-modems-4-which-xmt-80-bytes-of-data-10-times-s-and-3-which-must-rcv-data-from-all-4/13914)

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**Author:** [@BruceMacDonald](https://forums.digi.com/u/BruceMacDonald)\
**Replies:** 1\
**Last updated:** [November 13, 2014, 10:34am UTC](https://forums.digi.com/t/proper-settings-xt09-with-5-modems-4-which-xmt-80-bytes-of-data-10-times-s-and-3-which-must-rcv-data-from-all-4/13914 "2014-11-13T10:34:43Z")

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I have 4 GPS’s connected to four XT09 modems, and they each transmit 10 times per second, about 80 bytes per transmission.I am using the “user” setting on the XT09 PKG. I do not use destination addresses, but simply tra…

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## [Synchronize multiple XT09 receivers to start together?](https://forums.digi.com/t/synchronize-multiple-xt09-receivers-to-start-together/13346)

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**Author:** [@jvance](https://forums.digi.com/u/jvance)\
**Replies:** 1\
**Last updated:** [November 12, 2014, 3:52pm UTC](https://forums.digi.com/t/synchronize-multiple-xt09-receivers-to-start-together/13346 "2014-11-12T15:52:31Z")

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When I push the start button on a master device, I need the master device and a slave device (or several slave devices) to all start a process within 1 second of the button push (for the prototypes this is just lighting …

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## [Latency between tx and rx modes](https://forums.digi.com/t/latency-between-tx-and-rx-modes/13468)

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**Author:** [@ec\_1993](https://forums.digi.com/u/ec_1993)\
**Replies:** 1\
**Last updated:** [August 18, 2014, 2:01pm UTC](https://forums.digi.com/t/latency-between-tx-and-rx-modes/13468 "2014-08-18T14:01:10Z")

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Currently I’m using two XT09-PKI-RA modems and every once in a while a packet is being dropped. We’re using it in the default transparent mode. I’d like to know the latency in switching between tx and rx modes. For exa…

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## [Change frequency band of XTend radios](https://forums.digi.com/t/change-frequency-band-of-xtend-radios/13115)

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**Author:** [@tbarros](https://forums.digi.com/u/tbarros)\
**Replies:** 3\
**Last updated:** [June 10, 2014, 4:46pm UTC](https://forums.digi.com/t/change-frequency-band-of-xtend-radios/13115 "2014-06-10T16:46:11Z")

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Is there any way to change the frequency band of XTend 900 Radios? I have the XT09-SI radio, that is supposed to be used in North America with ISM 902MHz to 928MHz. Is there any way to change it to the International fre…