The frequency 490 MHz is missing in the DVB-T France transponder list. So if we add the 167 kHz offet the entry should be: 490167,8.
Link to the DVB-T frequencies used in France: https://fr.wikipedia.org/wiki/Télévision_numérique_terrestre_en_France#Canaux_et_fr.C3.A9quences_de_la_TNT
Thanks