Yes it does, you bung in 10, its set to 10w. 15, 15w etc. 4 lines there, hf 6,v and u.

From: chirp_users-bounces@intrepid.danplanet.com <chirp_users-bounces@intrepid.danplanet.com> On Behalf Of Ernesto Xload
Sent: 19 August 2019 23:00
To: Discussion of CHIRP <chirp_users@intrepid.danplanet.com>
Subject: [chirp_users] "RF power set" in Yaesu FT-857

I'm programming a Yaesu FT-857 and I have a doubt: does the "RF power set" value correspond to the output power in watts?

Best regards