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-   -   Egypt ferry sinks (https://www.subsim.com/radioroom/showthread.php?t=89051)

JSLTIGER 02-04-06 11:43 AM

Quote:

Originally Posted by Kapitain
Thats why it was it was orderd to turn around.

That and the Egyptian government told them that it was no longer needed.

Kapitan 02-04-06 11:49 AM

yup mind you the helo's could have been useful

Rotary Crewman 02-04-06 01:07 PM

121.5 is being phased out, which is why RAF Kinloss (On our visit to the ARCC) recommended (If you were a boating person) to use 243 rather than 121.5

I think the idea of 121.5 is for not only aircraft in distress but also for PLBs (Personal Locator Beacons) which all (Including ships) should have a radio tuned into to listen to.

Type941 02-04-06 02:08 PM

very sad. :cry:

Etienne 02-04-06 08:44 PM

Quote:

Originally Posted by Rotary Crewman
I think the idea of 121.5 is for not only aircraft in distress but also for PLBs (Personal Locator Beacons) which all (Including ships) should have a radio tuned into to listen to.

Ships don't keep watch on 121.5 (Not merchant ships, anyway). They keep watch on VHF 16, VHF 70, and a slew of MF/HF channels, but not on 121.5 MHz. Beside, since civillian vessels don't carry DF gears anymore, it'd be pretty pointless to receive an homing signal... Better to get a call from the RCC with the position data :-D

The only mention I've ever seen of a 243 EPIRB listed it as millitary only, but it's an old source, so that might have changed.

And with the COSPAS/SARSAT system, it's very common for a station not directly in the emergency zone to be the first warned. The satellites only work in line-of-sight area, so if a satellites picks up a signal (406 only), it'll keep it in memory until it links up with a LUT again, then downlink it. That's why planes crashing in the Canadian north are detected first by the Russians, since that's where the satellite goes next (Or it's the other way around).

Where's that RAF station, anyway?

Rotary Crewman 02-05-06 05:45 AM

I was made to believe that all were on the guard frequency on VHF incase of ejection etc!

Which RAF station? The ARCC? Kinloss

Etienne 02-05-06 10:04 AM

Yeah, where's Kinloss?

The nautical guard frequency, on VHF, is channel 16... 156,08 MHz, if I'm not mistaken, for R/T, and channel 70 (No clue of the frequency, but it's higher than 156,08) for VHF-DSC.

You can't actually call an aircraft's standard radio from a ship's GMDSS station. One of them needs special equipment (Usually, it's the aircraft :-D)

Godalmighty83 02-05-06 11:48 AM

raf kinloss is in scotland about what 6000miles from egypt?

Kapitan 02-05-06 02:19 PM

Yes but RAF kilnos moniters all satalites in orbit distress signals get sent to satalites.

on one trip from dartford to zeebrugge i done we had 7 distress calls 4 were in the pacific 1 in the irish sea 2 in the atlantic

Rotary Crewman 02-05-06 02:36 PM

http://www.doddy.co.uk/kinlossabbey/...images/map.gif

Miles away from the motherland *shudder* :-?

Etienne 02-05-06 06:01 PM

Quote:

Originally Posted by Kapitain
Yes but RAF kilnos moniters all satalites in orbit distress signals get sent to satalites.

on one trip from dartford to zeebrugge i done we had 7 distress calls 4 were in the pacific 1 in the irish sea 2 in the atlantic

Those calls were probably MF/HF DSC.... They skip all over the place.

EPIRBs have to be relayed by a coast station, as you obviously can't detect them from the surface.

And if the satellite was on the northbound part of its orbit (COSPASS SARSAT operates on a low altitude polar orbit), it's prettty understandable that Kinloss would be the first or second station in its path.


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