CHJX-FM is a Canadian radio station, broadcasting 24 hours a day on 99.9 FM in London, Ontario.

After fundraising the station began broadcasting from 100 Fullarton st[2][3] with a transmitter atop One London Place.

[4] CHJX-FM studios were moved in 2008 to the upper floors of YFC London located at 254 Adelaide Street South[5] July 5, 2010 Grace FM rebranded as Inspire FM,[6] launching a new site[7] but keeping the same format Christian format.

Their new frequency had an effective radiated power of 500 watts with a directional antenna system primarily towards the east to protect other stations that broadcast on or near 99.9 MHz, including CFGX-FM in Sarnia, CKFM-FM in Toronto, WKKO in Toledo, Ohio and possibly WXKC in Erie, Pennsylvania.

In June 2022, CHJX changed their branding to Faith 99.9 launching a new site, logo and tagline "Your friendly voice of hope."