|
 
IThe transponders enable
critical targets such as underwater structures, diving bells
and instrumentation packages to be marked unambiguously
and later relocated using Sonardyne's Homer-Pro and ROV-Homer
range and direction systems.
The unit operates in the
HF frequency band from 35-55kHz. External programming of
interrogation address and reply frequencies are incorporated.
The transponders operate
with Sonardyne's diver hand-held range and direction device
Homer-Pro (Type 7797) and ROV-Homer (Type 7832) for use
on Remotely Operated Vehicles (ROVs). The diver's/ROV's
unit interrogates the transponder to be relocated (specified
by the diver or ROV pilot) and from the reply, determines
both the range and direction of the transponder.
The compact design of the
transponders enable normal or emergency relocation of points
of interest, underwater distance measurement and small target
and diver tracking.
Technical Specifications
:-
| Feature |
Type 7835 |
Type 7835 |
| Depth Rating |
4,000 Metres |
12,000 Metres |
| Transmit Source Level |
>183dB re 1µPa @1m
>183dB re 1µPa @1m |
>183dB re 1µPa @1m
>183dB re 1µPa @1m |
| Reply Frequency |
Programmable1-9 |
Programmable 1-9 |
| Operating Frequency Range
|
HF (35-55kHz) |
HF (35-55kHz) |
| Receive Sensitivity |
<100dB re 1µPa |
<100dB re 1µPa |
Switch On
|
Continuously Operating |
Continuously Operating |
| Quiescent Life |
2 years Alkaline
3 years Standard Lithium
4.5 years Long-Life Lithium |
2 years Alkaline
3 years Standard Lithium
4.5 years Long-Life Lithium |
| Interrogation Mode |
Sequential |
Sequential |
| Interrogation Address |
Programmable 0–9 (1-401 Optional) |
Programmable 0–9 (1-401 Optional) |
| Mechanical Construction |
Anodised Aluminium Alloyed and Stainless
Steel |
Titanium Grade 5 |
| Dimensions (Lx Dia) |
353mm (13.9”) x 64mm (2.5”) |
376mm (14.45”) x 80mm (3.15”) |
| Weight in Air |
1.9kg |
5.5kg |
| Weight in Water |
1.2kg |
3.8kg |
Features:-
- Use for relocating targets of special
interest e.g. tools, diving bells, seabed instrument packages...
- Choice of depth rating; 4,000 Metre
or 12,000 Metre
- Compact and rugged design
- Up to 3,600 unique addresses
- Compatible with Scout USBL, Prospector,
ROV-Homer and Homer Pro relocation systems
- HF frequency band from 35-55kHz
- Long life battery packs give up to 4.5
years listening life
|
