If by several such readings, you can determine your linear position on a fathom line, a directional radio bearing can be done and the crossing of these lines gives a fair fix.
Ukuba ngezifundo eziliqela uyakwazi ukubona umgca wefathom isibambo sikanomathotholo esikhombayo singenziwa kwaye umqolo wale migca unika indibano elungileyo