SELCAL +flight databases

Robin Abrol

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Mar 15, 2000, 3:00:00 AM3/15/00

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Does anyone know of a selcal database that is available on the web for free?

The other thing I am looking for is a complete list of world flights - i.e.
I hear Speedbird 2066 and I want to find out where is is flying to and where
from.

Any ideas????

Many thanks

Robin

Paul Luggar

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Mar 15, 2000, 3:00:00 AM3/15/00

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Don't know of a database for this but could you tell me if theres any
shareware/freeware around to decode selcal?
Paul (;-)

Robin Abrol

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Mar 15, 2000, 3:00:00 AM3/15/00

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Check out the Eavesdroppers site - http://www.eavsdropper.dabsol.co.uk/

Robin

Paul Luggar <lug...@hotmail.com> wrote in message
news:38CFE3D2...@hotmail.com...

Paul Luggar

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Mar 15, 2000, 3:00:00 AM3/15/00

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Did'nt think of that one, I thought it was closing?
Thank you.
Paul.
(;-)

Paul Luggar

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Mar 15, 2000, 3:00:00 AM3/15/00

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Can't see anything here, is it on a link that I missed?
Paul

Spikey Mikey

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Mar 15, 2000, 3:00:00 AM3/15/00

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Go to http://home.kabelfoon.nl/~pdw/alp/ for the best set of WACARS
databases which include Aircraft, Routes, Ailines etc.

Download WACARS at that site too. Let's all have a go coz I have some
questions to ask.

Spikey Mikey

Robin Abrol

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Mar 16, 2000, 3:00:00 AM3/16/00

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Don't talk to me about WACARS. Have been trying it for months. No luck
here, even with all the sound settings altered etc.! Shame as it looks to
be quite good.

But thanks for that other link!

Robin

Spikey Mikey <i...@okbyme.fsnet.co.uk> wrote in message
news:8aosoh$he6$1...@news7.svr.pol.co.uk...

al

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Mar 16, 2000, 3:00:00 AM3/16/00

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On Wed, 15 Mar 2000 20:12:53 +0000, Paul Luggar <lug...@hotmail.com>
wrote:

>> Don't know of a database for this but could you tell me if theres any
>> > > shareware/freeware around to decode selcal?
>> > > Paul (;-)

I think you have your modes confused.The selcal lets the "listener"
hear trans that's just for him.

Al

al at olg dot com
wash dc , usa
535d r70 & decoders

Dave Holford

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Mar 17, 2000, 3:00:00 AM3/17/00

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I came in late and have not seen the previous postings; but

SELCAL allows a ground station to alert the flight crew via an
audio/visual alarm (light and chime) that they are being called.
Anyone can listen to any and all messages on the frequency.
SELCAL prevents the flight crew from having to listen to all the noise
and messages on the frequency. In effect they turn off the volume until
the SELCAL alerts them someone is calling.

Dave

Peter Humphreys

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Mar 17, 2000, 3:00:00 AM3/17/00

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BA2066 Gatwick Entebbe Dar es salaam,returne as BA2067. Peter Humphreys

Paul Luggar

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Mar 19, 2000, 3:00:00 AM3/19/00

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I may be wrong (!) but I thought every selcal transmission was "coded"
with a flight refrence of some type, or how does a aircraft know he is
being called?
I also hear pilots confirming that the selcal transmission was recived
with the correct call sign?
Paul
(;-)

Dave Holford

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Mar 19, 2000, 3:00:00 AM3/19/00

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Hi again,

It's "SELective CALling"

Each aircraft has a four letter code denoting the tone sequence used to
activate the alert. I understand there is a database somewhere on the
net of SELCAL codes versus aircraft registration, but don't know the
address.

When a flight checks in with an HF ground station they ask for a selcal
check to confirm it is working. If they turned on the selcal alert and
stopped monitoring the radio they would obviously not get any messages
if the selcal was faulty. It's like giving ATC your altitude when you
check in as a cross check to their Mode "C" readout.

If you are the ground station and want to contact a flight you just
punch in the code - the alarm goes off in the cockpit - the crew turns
on the radio (activates the receiver) and announces their callsign - you
then pass the message. On completion the crew turns off the receiver
(deactivates the receiver audio). Frequently the ground station will
first try a normal call since crews may have the receiver audio turned
on and the selcal is not required.

Selcal does not limit reception to only the flight the message is for.
Anyone, including you and me, with a receiver tuned to that frequency
will hear both the selcal page and any messages for anyone on the
frequency.

SELCAL can also be used on VHF but I presume this is normally limited to
company channels since many VHF (and UHF for miliary aircraft) ATC
frequencies are too busy to send a selcal alert and wait for the pilot
to ask who is calling.

Dave Holford

Peter W Allison

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Mar 22, 2000, 3:00:00 AM3/22/00

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Robin Abrol <rab...@hotmail.co.uk.uk> wrote in message
news:_%Oz4.374$u17....@news2-win.server.ntlworld.com...

>
> The other thing I am looking for is a complete list of world flights -
i.e.
> I hear Speedbird 2066 and I want to find out where is is flying to and
where
> from.
>
>

There is a book called 'Flight Routings' which is produced each year and
available from most air enthusiast shops (See magazines such as Aircraft
Illustrated and Air Pictorial for adverts). It is £7.95 and lists the
flights by airline/callsign and flight number. I believe a new edition will
be out in May.
Hope this is helpful, Peter Allison (Wilts)