Instruction Manual
easyRESCUE-PRO
Page 8 of 35
Weatherdock AG | Sigmundstraße 180 | D-90431 Nürnberg
+49(0)911-37663830 | [email protected] | www.easyais.com
Ships Call was acknowledged. It is important to know, that only the Coast Guard, or DSC
Class A VHF Radios installed on commercial vessels are able to acknowledge an All Ship
Broadcast Alert. The time frame to acknowledge the All Ship Calls is two minutes, always
following the end of a transmitted call. Audible and visible information for the victim about
the status of the DSC operation is provided as mentioned before.
A timing chart with detailed information about the DSC distress process can be found in
chapter 8.2.4.
If no ship-ID was programmed into the easyRESCUE-
PRO, the device’s alert operation will
start ten minutes (5 minutes with the version according RTCM 11901.1) after the trigger
directly with transmitting the first All Ship Call (Broadcast Alert).
Standard VHF DSC Class D Radios, which are fixed mounted aboard, normally allow the
acknowledgement of DSC Individual Calls (Closed loop) addressed to them. Please be
aware, that this is NOT THE FACT with most handheld DSC Radios. Those devices allow for
programming an easyRESCUE-PRO by VHF messaging as described in this manual and can
be used for testing the DSC radio link to an easyRESCUE-PRO only.
ACKNOWLEDGING OF DISTRESS CALLS, NEITHER INDIVIDUAL, CLOSED LOOP, NOR OPEN
LOOP, CAN BE CONDUCTED BY HANDHELD DSC VHF RADIOS!
It is necessary to know, that an acknowledgement of the DSC Alert transmissions, which lead
to a shutdown of the DSC operation, DO NOT cease the AIS-MOB transmissions. Those can be
shut down only by switching off the easyRESCUE-PRO.
4.3
Miscellaneous
The achievable operating range of the easyRESCUE-PRO is found to be ten to twenty nauti-
cal miles at standard “working
conditions”. This value depends on several criteria:
In a standard distress case the rescue transceiver is integrated into a life vest, height above
the sea surface between zero and twenty centimetres, receiving antenna on a sailing yacht
in a height of approximately 15 meters. This condition allows a radio range of 10 to 15 nauti-
cal miles.
Rising the receiving antenna to a height of 25 to 40 meters, e.g. the mounting height of
antennas on commercial vessels, the radio range will increase to 20 nautical miles and up.
Receiving the distress telegrams from aircrafts, a range of 40 to 100 nautical miles is ob-
tained easily.
Although the easyRESCUE-PRO has been developed for the use as an integral part of auto-
mated life vests, it can be operated from life rafts or rescue boats (as it is SOLAS approved,
which is the official requirement for the usage on commercial vessels!), in upper arm pock-
ets, etc. Chapter 10 shows some ideas regarding this.
The easyRESCUE-PRO is 10m waterproof, resistant against salt water, oil and direct exposure
to sunlight and withstands a 20 meter drop onto the sea surface. Also, the device is 100%
floatable without any floating aid.
Summary of Contents for easyRESCUE-PRO
Page 2: ......
