On 16 August, Lieutenant Commander Hugh A. Mackenzie of the Royal Australian Navy, the Deputy Staff Intelligence Officer for the British Solomon Islands Protectorate, set up a radio station at Henderson Field to monitor coastwatcher transmissions and relay their warnings to the CAF.
Den 16. august opstillede orlogskaptajn Hugh A. Mackenzie fra Royal Australian Navy, som var næstkommanderende for efterretningsvæsenet i British Solomon Islands Protectorate, en radiostation ved Henderson Field for at aflytte kystobservatørernes transmissioner og videregive deres advarsler til CAF.