39–45 Ohm Coaxial Armoured Tow Cable
39–45 Ohm Coaxial Armoured Tow Cable brings 6 selectable construction options together for sonar, hydrophone, telemetry and survey-equipment engineers. Compare the complete signal, electrical and mechanical requirement before choosing a configuration.
- Selection focus: compare six coaxial impedance, diameter, load and bend combinations for sonar, hydrophone and telemetry equipment
- Available configurations: 6
- Mechanical inputs: cable length, working load, drum, sheave, routing and deployment cycle
- Quotation inputs: services, environment, termination, quantity and required inspection documents
39–45 Ohm Coaxial Armoured Tow Cable selection overview
The 39–45 Ohm Coaxial Armoured Tow Cable gives sonar, hydrophone, telemetry and survey-equipment engineers one clear route for comparing 6 available constructions. It is designed to compare six coaxial impedance, diameter, load and bend combinations for sonar, hydrophone and telemetry equipment. Keeping the options in one product group makes it easier to compare signal architecture, conductor or fibre content, armour, diameter, mechanical load and bend geometry without switching between separate product pages.
Selection starts with the equipment interface: define voltage and current, signal type and frequency, coaxial impedance and allowable attenuation, or fibre type, count and wavelength as applicable. Then define whether the cable will be static, suspended, reeled, towed or repeatedly deployed. Cable length, working load, breaking-load criterion, drum and sheave dimensions, temperature, water environment, abrasion, buoyancy and the connector or moulded termination must be reviewed as one system.
- Compare: construction, transmission values, outside diameter, load and bend data shown for each option.
- Confirm: the complete service combination and the operating values that apply at the required cable length.
- Specify: inspection stages, test methods, acceptance values, marking and documentation in the quotation.
Use the related subsea and marine cable selection page for the wider application route, or send your equipment and deployment requirements for an engineering review.
39–45 Ohm Coaxial Armoured Tow Cable construction options
Compare the complete layer sequence for each option. Conductor or fibre elements, insulation, screening, fillers, bedding, strength members, armour and outer sheath are selected together to suit the transmission and deployment duty.| Configuration | Construction |
|---|---|
| 40 Ω standard coaxial tow configuration | 1 × 40 Ω coax; HDPE insulation/sheath; two preformed galvanized steel armour layers |
| 45 Ω heavy-duty coaxial tow configuration | 1 × 45 Ω coax; HDPE; two preformed galvanized steel armour layers |
| 45 Ω high-load coaxial tow configuration | 1 × 45 Ω coax; HDPE; two preformed galvanized steel armour layers |
| 45 Ω compact PP coaxial tow configuration | 1 × 45 Ω coax; PP insulation/sheath; two preformed galvanized steel armour layers |
| 42 Ω miniature coaxial tow configuration | 1 × 42 Ω coax; XLPE; two preformed galvanized steel armour layers |
| 39 Ω compact coaxial tow configuration | 1 × 39 Ω coax; XLPE; two preformed galvanized steel armour layers |
Construction selection
Armour material and lay, sheath material, waterblocking, screening and fibre protection are matched to corrosion exposure, abrasion, repeated bending, handling load and termination design. The armour anchoring and connector or moulded transition are reviewed with the cable because they control how load and water sealing are transferred into the equipment.Applications for 39–45 Ohm Coaxial Armoured Tow Cable
This product group supports sonar, hydrophone, telemetry and survey-equipment engineers where transmission performance and mechanical deployment duty must be selected together.- Towed sonar, hydrophone and telemetry systems that require one coaxial transmission path and load-bearing armour.
- Oceanographic instruments deployed and recovered by a winch where impedance, attenuation, working load and bend geometry are reviewed together.
- Not a substitute for a static subsea power cable or a hybrid cable that must carry separate power, control or optical services.
Information needed for selection
Provide the equipment, cable length, service voltages or signals, load criterion, winch and sheave dimensions, deployment method, water environment, temperature, buoyancy target, connector or moulding interface and required inspection documents.39–45 Ohm Coaxial Armoured Tow Cable specifications
Use the stated values to compare complete configuration options. Empty properties are omitted instead of being estimated, and each numerical value stays with the construction under which it is listed.40 Ω standard coaxial tow configuration
| Construction | 1 × 40 Ω coax; HDPE insulation/sheath; two preformed galvanized steel armour layers |
|---|---|
| Voltage / test value | 1900 Vdc |
| Impedance | 40 Ω @ 1 MHz |
| Coaxial attenuation | < 11.5 dB/km @ 1 MHz |
| Outside diameter | 11.50 mm |
| Breaking load | 71.2 kN |
| Working load | 17.8 kN |
| Dynamic bend radius | 230 mm |
| Temperature | -30 to +80°C |
45 Ω heavy-duty coaxial tow configuration
| Construction | 1 × 45 Ω coax; HDPE; two preformed galvanized steel armour layers |
|---|---|
| Voltage / test value | 3000 Vdc |
| Impedance | 45 Ω @ 1 MHz |
| Coaxial attenuation | < 6.1 dB/km @ 1 MHz |
| Outside diameter | 17.30 mm |
| Breaking load | 178 kN |
| Working load | 44 kN |
| Dynamic bend radius | 360 mm |
| Temperature | -40 to +90°C |
45 Ω high-load coaxial tow configuration
| Construction | 1 × 45 Ω coax; HDPE; two preformed galvanized steel armour layers |
|---|---|
| Voltage / test value | 3000 Vdc |
| Impedance | 45 Ω @ 1 MHz |
| Coaxial attenuation | < 6.1 dB/km @ 1 MHz |
| Outside diameter | 23.90 mm |
| Breaking load | 338 kN |
| Working load | 85 kN |
| Dynamic bend radius | 480 mm |
| Temperature | -40 to +90°C |
45 Ω compact PP coaxial tow configuration
| Construction | 1 × 45 Ω coax; PP insulation/sheath; two preformed galvanized steel armour layers |
|---|---|
| Voltage / test value | 1500 V |
| Impedance | 45 Ω @ 1 MHz |
| Coaxial attenuation | < 12 dB/km @ 1 MHz |
| Outside diameter | 11.00 mm |
| Breaking load | 85 kN |
| Working load | 21.3 kN |
| Dynamic bend radius | 220 mm |
| Temperature | -40 to +80°C |
42 Ω miniature coaxial tow configuration
| Construction | 1 × 42 Ω coax; XLPE; two preformed galvanized steel armour layers |
|---|---|
| Voltage / test value | 1800 V |
| Impedance | 42 Ω @ 1 MHz |
| Coaxial attenuation | 18.4 dB/km @ 1 MHz |
| Outside diameter | 6.65 mm |
| Breaking load | 23 kN |
| Working load | 5.75 kN |
| Dynamic bend radius | 130 mm |
| Temperature | -30 to +90°C |
39 Ω compact coaxial tow configuration
| Construction | 1 × 39 Ω coax; XLPE; two preformed galvanized steel armour layers |
|---|---|
| Voltage / test value | 1200 Vdc |
| Impedance | 39 Ω @ 1 MHz |
| Coaxial attenuation | 16.9 dB/km @ 1 MHz |
| Outside diameter | 8.20 mm |
| Breaking load | 42.7 kN |
| Working load | 17.1 kN |
| Dynamic bend radius | 180 mm |
| Temperature | -30 to +90°C |
Using the values
Breaking load is not the normal operating load. Bend values must match drums, sheaves, guides and connector exits. A voltage entry that includes a duration is a dielectric test value rather than a continuous rated voltage. Confirm the applicable operating and acceptance values in the quotation.Standards and test references
The applicable references are selected for the confirmed cable construction and project duty. They provide a framework for engineering and inspection rather than a one-size-fits-all cable designation.- IEC 61196-1: General definitions, design requirements and test-method framework for coaxial communication cables.
- IEC 61196-1-100: General conditions for electrical tests in the IEC 61196 coaxial-cable test series.
- Project test plan: Defines impedance and attenuation frequency, dielectric test conditions, tensile load, bend method, water exposure and termination checks.
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View productRequest a cable recommendation and quotation
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- Attach a specification, drawing or data sheet when available.