Français : Boite de couplage 500 kHz de la station côtière française radiotélégraphique du centre d'instruction naval de Saint-Mandrier de la Marine nationale et radiotélégraphiste YL.
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500 kHz coupling box of the French coastal radiotelegraph station of the Saint-Mandrier naval training center of the French Navy and radiotelegraphist YL
Station côtière française. Boîte de couplage d’émetteur radiotélégraphique 500kHz.
500 kHz koppeldoos van het Franse kustradiotelegraafstation van het marine-opleidingscentrum Saint-Mandrier van de Franse marine en radiotelegrafist YL