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WAMBLEE S.R.L. UNIPERSONALE

Via Vittori 19

I-48018 FAENZA (RA)

 +39 0546 623891

 +39 0546 623891 (aut.)

 

[email protected]

 

www.wamblee.it

C.f., P.Iva e Reg. Imprese Ra no. 02276360399 - Capitale Sociale 10.000,00 €

Rea no. 187355  -  Albo Imprese Artigiane Ravenna no. 60939

approximation of about 3/5mn. For this reason the EPIRBs are equipped with a second

frequency (121.5 MHz, the same as W400 or W470 MSLD (MOB)) that can help SAR units
to localize better the position of the accident. We choose the 121.5 MHz as the rescue

frequency of the W400 or W470 devices so that it can also be received from the SAR units
which work in the area. For example if it is not possible to determine the position of the

man   -overboard,   the   master   of   the   ship   can   contact   the   SAR   units   and   request   an
intervention by using the 121.5 MHz frequency as search frequency.

Which is the range covered by MSLD systems?

The range covered by MSLD (MOB) systems is indicative and depends on the technical

characteristics of the emission of the signal; following is an indicative summary table:

Device

Range covered

W400

(121.5 MHz, 100mW)

Between shipwrecked person and vessel = ± 2nm
Between shipwrecked person and aircraft = ± 10nm 

W420

(AIS1 and AIS2)

Between shipwrecked person and vessel = ± 5nm
Between shipwrecked person and aircraft = ± 40nm

 

W470

(AIS1 and AIS2)
(121.5 MHz, 100mW)

As indicated above for each single frequency

Aircraft at a height of 3000 ft.

Who can receive this emergency signal in addition to my vessel?

With the exception of the W400 device, for which you must have installed on board a

specific receiver (or you should inform the SAR unit of the presence of a man overboard
with MSLD device operating on the aeronautical band), for the other devices the reception

of the MSLD signal is possible provided they are capable of receiving the AIS protocol.

Is it possible to try the device without having to activate a distress signal?

Yes, it is. You just have to leave the main knob on TEST postion and press the activation
button. 

For the devices equipped with GPS module (W420 and W470), the test sequence has two

modes: short and long.

Page 3 of 5

Содержание W400

Страница 1: ...d of an EPIRB buoy The two products are diferent and have diferent functions If you need to have an emergency device that is able to signal a serious damage of the vessel the EPIRB is the suitable device If you need to have a security system on board for the vessel crew that must activate in case of man over board the MSLDs MOB are the right choice How do they work The Wamblee devices of W4XX seri...

Страница 2: ...els and a homing signal at 121 5 MHz with a power of 1 W in AIS mode 0 1W in Homing This signal uses both AIS Automatic Identification System protocol and homing signal for RDF Radio Directional Finder and provides the transmission of the man s position at sea using a GPS module with 66 channels inside the device This device model combines the performance of two MOB models W400 Homing 121 5 Mhz an...

Страница 3: ...chnical characteristics of the emission of the signal following is an indicative summary table Device Range covered W400 121 5 MHz 100mW Between shipwrecked person and vessel 2nm Between shipwrecked person and aircraft 10nm W420 AIS1 and AIS2 Between shipwrecked person and vessel 5nm Between shipwrecked person and aircraft 40nm W470 AIS1 and AIS2 121 5 MHz 100mW As indicated above for each single ...

Страница 4: ...the batteries The long mode checks that the GPS module is working properly and generates a test radio message containing the position acquired by the GPS module How much is the operation life The MSLD devices of the W4XX series guarantee a battery life of 5 years if not used including test cycles established for each device In case of activation the battery life changes depending on the model Devi...

Страница 5: ...sible to trace out the position of the man overboard because the signal is too weak and requests a specific receiving device see problem with SAR Batteries must be replaced quite frequently How do you install this device This equipment has been designed to be used with self inflating jackets and it is normally installed By using the rear flange for passing one of the fabric tapes that connect the ...

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