# DR-891, FT-891, wsjt-x and Microphone causing output

**URL:** https://forum.digirig.net/t/dr-891-ft-891-wsjt-x-and-microphone-causing-output/9702
**Category:** Uncategorized
**Tags:** yaesu-ft-891, troubleshoot-ptt, software-wsjtx, dr-891
**Created:** [September 28, 2025, 10:23pm UTC](https://forum.digirig.net/t/dr-891-ft-891-wsjt-x-and-microphone-causing-output/9702 "2025-09-28T22:23:04Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![mikeporterinmd](https://forum.digirig.net/user_avatar/forum.digirig.net/mikeporterinmd/32/4603_2.png) [@mikeporterinmd](https://forum.digirig.net/u/mikeporterinmd)
#### Post date: [September 28, 2025, 10:23pm UTC](https://forum.digirig.net/t/dr-891-ft-891-wsjt-x-and-microphone-causing-output/9702/1 "2025-09-28T22:23:04Z")

</div>

For the Yaesu FT-891, we all know that the DATA IN SELECT (08-09) needs to be set to REAR. If set to Mic, you get the classic mistake of seeing output power when speaking into the mic, not when transmitting via wsjt-x. Typically, you get no output or maybe a tiny bit if you sneeze.

Today, after weeks of running this setup successfully, no output power. Checked the antenna. Removed the new Heil headset. Re-init the radio. Blah, blah. Nothing.

VFO-A was D-U.

VFO-B was USB! I run unit controlled split in wsjt-x, and so DATA IN SELECT wasn’t doing anything since VFO-B is used when running split. Not really sure how come all of a sudden VFO-B was USB and not D-U and why wsjt-x didn’t set up VFO-B properly since I run split. I haven’t updated anything recently.

Anyhow, this isn’t mentioned anywhere I could find, so I thought documenting the issue would help someone.

Also, I never found a software way to get VFO-B to D-U. I ended up just doing an A/B and reselecting the band in wsjt-x.

Also, I used wsjt-x and flrig controlling the radio.

Thanks for listening!

Mike