As many know I have held a TX permit for 8m in the UK.
In the past I have owned an FT-710 which can be put into "engineering mode" by pressing a combination of buttons without the need to uncase the rig and without invalidating the warranty. This allowed TX on 8m, although I never used the FT-710 outside the amateur bands. Instead I used my FT817ND that was widebanded by MLS. On the FT-710 it meant I could TX on 8m if I needed to, but never did.
I am wondering if there is a similar trick with the IC-705 (i.e. just button presses) which would give me TX on the IC-705 at 8m.
I am aware of the diode mod, but do not want to go inside the rig as I no longer trust my fine motor skills!


