GMDSS VHF SURVIVAL CRAFT WALKIE TALKIE CLICK HERE TO DOWNLOAD NOTES

GMDSS VHF          (SURVIVAL CRAFT WALKIE-TALKIE)

How many GMDSS VHF (walkie talkies) are available on board?

Vessels above 500 GRT:

Every vessel carries 3 GMDSS walkie- talkies

Each walike-talkie –talkie has 2 batteries.

One is attached with the set. One is sealed spare battery.

Vessels above 300 GRT – 500 GRT:

Carrying 2 GMDSS walkie talkies

What type of battery is used?

Battery –Lithium

What is the battery life?

Shelf life – 2 years

Operating life/ working for – 48 hours in Standby Mode

                                                    8 hours in Transmitting Mode

What is the power out put?

Power Output – Max – 1 watt     

 Minimum - 250 milli watts – varied in manufacturing – different models are available

What is the emission?

Emission – F3E

What is the propagation?

Propagation – Line of Sight (VHF propagation)

What are the important channels?

CH 16 and CH06

How do you test GMDSS VHF?

Monthly test.

Test with another GMDSS VHF other than CH 16

GMDSS VASU PH: 096299 80476 PONDICHERRY   vasurc@gmail.com

What are the special features of GMDSS walkie talkie?

1. HIGHLY VISIBLE IN COLOUR
2. ON / OFF VISBLE INDICATION
3. SIGNLE HAND OPERATION
4. HARD SURFACE DROP RESISTANCE FROM A HEIGHT OF ONE METRE

ON WATER SURFACE 20 METERS

5. BUOYANT & WATER PROOF TO A DEPTH OF ONE METRE FOR FIVE MINUTES
6. SHOULD BE CARRIED ALONG TO THE SURVIAL CRAFT WITH SPARE SEALED PRIMARY BATTERY
7. OUT PUT POWER

MINIMUM      :           0.25 watts (250 milli watts)

MAXIMUM     :           5 watts, but normally 1 W

GMDSS VASU PH: 096299 80476 PONDICHERRY          vasurc@gmail.com