Using ADSB

[Condor68]

HI Obviously doing something stupid,but could do with a bit of advice.Finally worked out what adsb was and gave it a go.Only showing 1 RAF plane up(a Puma) not too many US either. Can't believe that's all that's up just now ( 0945) Just went on the current military tab.Is there anything else I should be doing or has the snow decimated England?

Thanks for any advice,the pub is just out the back door so I don't need that bit.

Keith

[Typeflyer]

Keith, It's quiet this morning - probably linked to the weather.

[Condor68]

Thanks I just assumed it was me as the weather up here is fine a bit chilly but no wind rain or snow.


Thanks again

Keith

[Snoop 95]

You will often find firstly that not all military aircraft use the transponder that shows-up on ADS-B and secondly that even when they are shown in the data panel on the right-hand-side, they may not appear on the map.

[zero_gravity]

Plenty of mil stuff up on PP with GUNNY STEEL and BOLAR in the Welsh MTA, QIDS 1-4 RCH etc , etc , plus the usual RAF helos.

[davekench]

There are military showing on 360Radar, eg Tornados in East Anglia, and Queens flight S-76 showing TQF1 on the map of UK.

Dave.

[Condor68]

Thanks for the help I will get the hang of it eventually.

Thanks again

Keith

[Tarnish9]

360radar we got it covered (y)

[Blackjack56]

I agree with all of the above,It sounds like 360 Radar is the best but ADSB is the best free one,in my experience the"heavies" often appear(e.g voyagers,A400's,C17's,KC135'S)but not all of the smaller stuff does so here in Norfolk i tend to have to do do some detective work with the scanner set on the military frequencies when for instance i see a tanker doing a "race track" pattern over the north sea to find out what it is refuelling,All the best.Mark.

[toom317]

You don't get a lot on adsb over Scotland, below 6000 feet, but it is still handy for keeping an eye out for possible Tornado traffic coming up the East.

[Blackjack56]

Thank's toom317 you've confirmed what i have noticed before,namely the fact that we see the likes of typhoons,voyagers and tornados over england on ADSB but not often off the coast of scotland,(given the fact that there are typhoons at lossie) with their tracks suddenly starting somewhere off the yorkshire/northumberland coast,even the voyagers withTARTAN callsigns which must surely have been refuelling the typhoons off the scottish coast then headed south to tank up others off the english coast(a guess) Mark.

[zero_gravity]

I think that whichever system you are using its important to understand what lies behind a/c location.

The same principles apply no matter where you are. For ADS-B , that's where the a/c is transmitting its location , then you need just one receiver to be seeing the target
For Mode S a/c , which don't transmit their location , then triangulation using multilateration [mlat ] is required and that needs at least three receivers with appropriate
modifications to see the target , at the same time.

Across the bulk of the UK trackers provide good fixes down to low level but as you can appreciate , across Scotland there are fewer folk participating in network sharing.
Its always been the same. Plenty of receivers north of the border but for some reason , whilst they are happy to view other people's data , they seem reluctant to share their own.

There are alternatives......for instance

Wide area location using sharer circles method [This produces a VENN zone in which the target should be sitting and is loosely based on the method used by Cell Phone operators ]

Mode S location by radar pulses [short range]

Mode S location by radar pings [ long range lock out ]

Mode A/C location [ using the pulses from radar returns and SSR codes to locate those a/c which do not transmit ADS-B or Mode-S data ]

DF [Radio location using radio transmissions from the a/c ]

Global Oceanic coverage via geo stationary satellites
Bottom line is....make sure you have your own receiver , well located antenna and contribute to one or more of the networks.
If you don't contribute , you can't really complain about lack of coverage . ADS-B receivers cost as little as £20 and good reception can be
obtained from home brew antennae made from bits of copper wire and a cable feed.

ZG

[Tarnish9]

I thank you zero_gravity.

[Blackjack56]

Thank's zero gravity,i didn't really understand all the details and now i do!,a very detailed explanation,thank's again.Mark

[zero_gravity]

No problem.

Just one other thing....

Only one system puts you in total control of what you see allowing you to manually locate individual a/c with no restrictions , other than availability of data.

I'll leave you to work out which one

ZG