The Kingfisher Optical Talk Set provides convenient full duplex voice communication on one optical fibre. The 1550 nm model can be used for extreme long range applications such as submarine cable installations over distance up to 300 kms. Reliable field operation is guaranteed by a unique combination of features such as very simple to operate controls, rugged drop protected construction and reliable analogue transmission. High quality full duplex voice transmission is maintained over the full optical range, with no operator intervention. An optical reserve of typically 5 dB allows intelligible operation over very poor joints for emergency use.
