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Thread: Reconnaissance Ventures Ltd

  1. #11
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  2. #12
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    That's interesting... it's a similar but not identical course to the patterns I observed for REV4LF over the past couple of weeks... the end-of-row turnarounds here seem a lot more loose and unpredictable, even turning into figures of 8 and loops on occasions. I wonder if the jobs the planes were doing are the same sort of thing. Also I notice it's all been happening over rural areas.

    If it's police / special ops, this time of year they might be looking for any buildings that give off unusually high heat signatures, as this can suggest that cannabis is being grown on the premises. Growing cannabis commercially on a large scale requires a warm environment and you would ideally choose somewhere secluded without curious neighbours. Because of the energy requirements it is often also associated with theft of electricity from the network.

    BTW how do you get your screenshots directly into the posts like the examples here? I've only figured out how to attach pictures I have saved already.

  3. #13
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    REV4LF is starting early tonight... not yet midnight and already there's been a series of passes over the densely populated areas of Fulham, Camberwell, Wandsworth and Barnes (all areas of London) at around 3,700' . This altitude and these areas are totally in the approach zone to LHR and it would only be possible to carry out these manoeuvres when there are no flights in or out. It's one of the busiest patches of airspace in the UK.

  4. #14
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    Quote Originally Posted by Danny1962 View Post
    REV4LF is starting early tonight... not yet midnight and already there's been a series of passes over the densely populated areas of Fulham, Camberwell, Wandsworth and Barnes (all areas of London) at around 3,700' . This altitude and these areas are totally in the approach zone to LHR and it would only be possible to carry out these manoeuvres when there are no flights in or out. It's one of the busiest patches of airspace in the UK.
    Danny,

    Any chance of listening to ATC? (via a scanner). That's how I managed to figure out all the frequencies, location of aircraft and aircraft ID's around my area here in SYD before FR24 came along. In fact, I still use them in combination.

    Regards,
    Gregg
    Last edited by fungus; 2015-02-02 at 12:57.
    YSSY2/T-YSSY4 [SBS-1 Basestation w/- SSE-1090 SJ Mk2 Antenna (Thanks Delcomp) ] [Uniden UBCD996T w/- 16 element Wideband Discone VHF/UHF Antenna, and tuned 108MHz-137MHz Airband Antenna] [Trialing a home-brew 1090MHz collinear antenna]

  5. #15
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    REV4ND is criss-crossing North London tonight at about 3,100', it's currently 02h53 UTC and there's almost no other traffic about.

    Gregg... thank you very much for your suggestion, which has prompted me to dig out a scanner that I'd had in a cupboard for many years. I plan to do exactly what you do, to use scanner and FR24 in combination. I'm not very experienced at doing this so it will take me a little while to really understand what is going on and to learn which frequencies are likely to be the most interesting. I've programmed many of the London Approach and ATC frequencies into my radio and have started to listen. All the online "how to use" guides I came across seem to concentrate on the actual operation of the radio, rather than telling the user how to find the most relevant frequencies and then interpret what they hear. Does anyone know of any good tutorials on this subject?

    The other thing I was trying to do is to filter only on aircraft going to / from a particular airport on FR24. I'm positive I used to be able to do this once but I cannot remember how I did it and the FR24 interface doesn't make it obvious to me. Many of the incoming flights to LGW and LCY come over my house so I want to listen to the approach frequency for LCY at the same time as FR24 is set only to show planes that are on the way there. Can anyone give me any tips? Or even direct me to a scanner user forum? I think my questions would be more relevant there than they are on this thread.

  6. #16
    Captain fungus's Avatar
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    Danny1962,

    Here's a couple of sites which include frequencies for LGW, LCY, LHR and many other UK airports. A simple Google search was all that was needed but I cant vouch for them from over here. There may be more recent or updated sites out there. I've been listening to ATC here for decades and it can take some time to become accustomed to the jargon if you're not used to it (you may pick it up quite quickly) but it's absolutely worthwhile. Occasionally listening to pilots/ATC will reveal a new frequency. It's one way to positively identify the various aircraft in your vicinity and identify what they are actually doing especially if equipped with the older mode-c transponders which don't have the same information helpful to us that we need on this site. Fortunately those will be phased out in time;

    http://www.radios-uk.com/airfrequencies.htm
    http://www.militaryairshows.co.uk/freqairport.htm

    I'll also include the charts for EGLC which indicate the approach/departure tracks etc but it is out of date (2011) and cant be used for navigation purposes but should suffice for what you may need. They do tend to change gradually over time but surprisingly many don't.

    http://www.ukvirtual.co.uk/dl/charts/eglc.pdf

    You can find almost any airport in the world simply by googling '(ICAO code) pdf' and searching for the most recent/appropriate file/s. Obviously the code for LCY is 'EGLC.' Most common airport ICAO codes are now included on the map but if one doesn't our mate Google can more often help with that.

    'Skyvector' is another worthwhile site to keep up your sleeve for charts; http://skyvector.com/. Here's EGLC and it even includes the frequencies you need (apparently there's 215 UK airports on skyvector);
    http://skyvector.com/airport/EGLC/London-City-Airport

    Regards and good luck with that aircraft,
    Gregg

    BTW I can listen to the local NSW Police Airwing based nearby at Bankstown airport when they contact ATC as they must during operations (as do all the Rescue/Medivac choppers). Mainly Police choppers but at least one Cessna Caravan used for a variety of operations including speed monitoring on the local freeways/motorways. Keeps me out of the missus' hair.

    As for searching the map by airport it's still possible via the little 'wheel' next to the UTC time (top right of map). Select 'filters' and 'add new filter' then one of the menu items is indeed 'airport.'
    Last edited by fungus; 2015-02-07 at 10:07. Reason: additional info
    YSSY2/T-YSSY4 [SBS-1 Basestation w/- SSE-1090 SJ Mk2 Antenna (Thanks Delcomp) ] [Uniden UBCD996T w/- 16 element Wideband Discone VHF/UHF Antenna, and tuned 108MHz-137MHz Airband Antenna] [Trialing a home-brew 1090MHz collinear antenna]

  7. #17
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    Quote Originally Posted by Danny1962 View Post
    REV4LF is starting early tonight... not yet midnight and already there's been a series of passes over the densely populated areas of Fulham, Camberwell, Wandsworth and Barnes (all areas of London) at around 3,700' . This altitude and these areas are totally in the approach zone to LHR and it would only be possible to carry out these manoeuvres when there are no flights in or out. It's one of the busiest patches of airspace in the UK.


    Also REV4ND registration G-MIND on it's way down towards the east of London at the moment. Wondered why a relatively loud plane was flying so low at the time and tonight's twigged my memory, hence the post

  8. #18
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    Yep, I just heard it fly above my house and I figured I'll check it out on flightradar24.com This is not the first time I noticed such activity, the last time I saw this type of activity around my area was probably back in December.

    If I had to guess maybe they're using some sort of thermo-vision to detect possible pot farmers and then send the data back to police on the ground, not necessarily to act on the notice, but something they can look into and work on it in the morning.

  9. #19
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    Great minds think alike... I was just about to post myself! REV4ND looks to be making a series of passes across South London at 3,400'. Weather conditions are clear (I'm sitting about 30 miles away from the action and they are very clear here, so I'm guessing it's the same in London). I'm sure the conditions were like this the last few times I saw Reconnaissance Ventures being active in this way.

    BTW thanks for your suggestions Fungus. I found a copy of David J Smith's Airband Radio Handbook (7th Ed) which is very informative.

  10. #20
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    He is spending a long time in the one area if they are just looking for Pot farmers.
    fr24://REV4ND

    I'm not sure how to copy and paste the Fr24 track into the post from an iPad, anyone help?

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