The ZÖLLNER ZETFON
The ZETFON is an electronic sound transmitter. It consists of the ZETFON (sound emitter) itself mounted on the mast and a control and amplifier unit for wheelhouse installation. The control and amplifier unit contains all electronic components including the heavy transformer. This way heavy weight on the mast is avoided and vital components are within easy reach.
The ZETFON is an economic alternative to air whistles on small vessels without air compressor.
Class III – Vessels of 20 metres but less than 75metres in length
| ZETFON 300/310 DC | 130 dB in 1/3rd-octave band level at 1 m | |
|---|---|---|
| ZETFON 400/310 AC AND DC |
130 dB in 1/3rd-octave band level at 1 m |
Class IV - Vessels of less than 20 metres in length
| ZETFON 120/330 K | 120 dB in 1/3rd-octave band level at 1 m | |
|---|---|---|
| ZETFON 50/650 K | 120 dB in 1/3rd-octave band level at 1 m |
