Ibsophone

Technical data of the Ibsophone MT3

The Ibsophone tethered under water communication system provides for excellent voice communication between the divers and the surface attendant. The Ibsophone contributes to a high degree of diver safety and also improves his underwater work.When connectors are removed from the amplifier the unit is switched off. Uses six standard 1,5 Volt C Baby/LR14/AM2 batteries for power.

Hearing speech setting

Microphone Impedance Bone Conductor Impedance
200 - 500 ohms
150 - 300 ohms

Headset

Microphone Impedance Loudspeaker Impedance
Approx 200 ohms
Approx 15 ohms

Master Amplifier IBS MT3

Dimensions Weight Battery Volt Current Ingress protection
240*173x56 mm ( 9.5 x 6.8 x 2.2 inch)
2,8 kg
9V (6 of 1,5V)
Approx. 40 mA
IP67

Headset

Microphone Impedance Loudspeaker Impedance
200 ohm
15 ohm

Diving Microphone

Impedance
200-500 ohm

Bone Conductor

Impedance
150-300 ohm

Cable and Line

Cable or line Communication cable Life line PP Life line Technora
Length
0-155 m
0-155 m
0-155 m
Diameter
4,5 mm
10,5 or 12,5 mm
11 mm
Material in Cable Protection
Polyurethane
-
-
Number of Wires
4
4
-
Type of Wire
Multible copper wire
Multi copper wire
Multi copper wire
Wire Area
0,25 mm2
0,25 mm2
0,25 mm2
Wire Isolating
TPE
TPE
TPE
Screen
Copper
-
-
Max. Working Voltage
350 V
-
-
Testing Voltage
1500 V
-
-
Min. Bending Radius
7,5 * diameter
-
-
Resistance to Oil
Very good
Not so good
Not so good
Temperature range
-40°C to +90°C
-40°C to +90°C
-40°C to +90°C

At the end of the communication cable there is a Subcon under water contact, 4-pole, with locking sleeves. The communication cable is used twisted with the Interspiro DP1 hose, approximately 5-6 twists/metre of hose.

If the IBSOPHONE is used without the hose, there is a life line available with a breaking strength of 2000 kg.