Consisting of: 1 Ocean Technology Systems OTS Aquacom SSB 2001 Ultrasonic transmitter with double headphones with microphone and cabling 1 cable 17 meters 2 Ocean Technology Systems OTS Divator MK II Buddy Phone Microphone and Headphone Sets for DivatorMK II Full Face Mask 1 transport case for all components   Year of construction and age of components are not known. The function of the entire components is not given, the objects are defective. The ultrasonic transmitter has all-round age-related scratches and dirt. The wiring on the double headphones is broken and defective, the wires are free. The remaining cables have age-related scratches. The MK II Buddy Phone sets have all around age-related scratches and dirt, the protective rubber is torn in on both mussels. The transport case has dents and scratches all around.   Specifications OTS Aquacom SSB 2001 ultrasonic transmitter receiver: CE marking: not available Transmission range: calm sea: more than 1000 metres; Wind strength 6: 200 meters Acoustic output power: SSB-2001: 1 Watt (171.2 dB re. 1 uPA at 1 m) Audio frequency response 300-400 Hz Receiver sensitivity: ~110 dBv Automatic near-response damping: 120 dBP dynamic range Transmitter activation: voice-controlled transmitter (VOX) or manual operation (PTT) Transmission frequency: SSB-2001: 33 to 37 kHz Battery life: AA (8 pieces) Alkali batteries: 12 hours until recharging, with an assumed transmission cycle of 10 %. When using RB-10A nickel-cadmium batteries: 6 hours Battery type: 8 AA alkaline cells or optionally RB-10A nickel cadmium rechargeable batteries Sound transducers: piezoelectric Headphones: ceramic Housing: impact-resistant polycarbonic plastic with 30 % glass content, made in injection moulding process Maximum depth: 120 m Housing dimension: height 160 cm, width: 11 cm, depth: 6 cm Operating temperature: 0°C to +60°C  Storage temperature: -10°C to +60°C Display of battery power drop: Red LED display on top housing Connector: hardened brass/gold-coated pins   Technical Data OTS Divator MK II Buddy Phone Sets for Divator mk II Full Face Mask: CE marking: not available Range: up to approx. 500 m, depending on the conditions in the water and the noise level Transmission type: Ultrasound at high simple side frequency Reference frequency: 32,768 kHz Sound frequency bandwidth: 300 Hz to 3000 Hz Automatic gain control: < 80 dB Headphones: made of ceramic with dynamic depth compensation Microphone: dynamic Transmission system: ceramic cylinders Operating depth: max. 40 m seawater Battery: optional Alkaline 9 V, Lithium 9 V Weight: approx. 230 g - without full face mask   Other objects shown in the pictures are not for auction.