WAMBLEE S.R.L. UNIPERSONALE
Via Vittori 19
I-48018 FAENZA (RA)
39 0546 623891☎
39 0546 623891 (aut.)
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
05
The W420 device e its a radio signal on AIS 1 and AIS 2 (AIS)
channels of the ariti e VHF band, with a power of 1 W. This signal
uses the AIS (Auto atic Identification Syste ) protocol and provides
the trans ission of the an's position at sea using a GPS odule with
66 channels inside the device.
The GPS odule precision is about 10 eters, and the AIS syste –
contrary to the DSC syste – forwards its position in degrees/ inutes/
seconds and fraction of seconds.
With this protocol the position error is co parable to the error of the
GPS odule (< 10 eters).
The unit has a blinking flash for night-ti e localization.
06
The W470 device e its a radio signal on AIS 1 and AIS 2 (AIS)
channels and a ho ing signal at 121.5 MHz, with a power of 1 W (in
AIS ode, 0.1W in Ho ing). This signal uses both AIS (Auto atic
Identification Syste ) protocol and ho ing signal for RDF (Radio
Directional Finder) and provides the trans ission of the an's position
at sea using a GPS odule with 66 channels inside the device.
This device odel co bines the perfor ance of two MOB odels:
W400 (Ho ing 121.5 Mhz) and W420 (AIS), and offers a greater
flexibility.
The unit has a blinking flash for night-ti e localization.
Can the VHF receiver be used on board?
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Has the frequency 121.5 MHz been removed from rescue monitoring system,
hasn't it?
The frequency 121.5 MHz is no longer used since February 2009 as pri ary frequency of
the EPIRB syste s anaged by Cospas-Sarsat; it is i portant to know that the 406 MHz
frequency used by satellites for the triangulation, can report a position with an
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