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Everything posted by matty

  1. Have you got it sorted ? I have some kit for doing SD rework - PM if you want me to take a look at it.
  2. matty

    Radio Scanners

    Not so difficult now to decode TETRA packets and traffic, it won't decode the encrupted traffic (yet) though.... http://www.rtl-sdr.com/rtl-sdr-tutorial-listening-tetra-radio-channels/
  3. Almost took a cyclist out last week, when I was fly fishing at Cringle, slammed his anchors on and came to a swift stop as I was casting. Apart from ignoring the highway code, some of them also seem to have problems reading, or perhaps just ignoring the no cycling signs around the reservoir.
  4. Good PCB prices on the link there - just need an excuse to use them Could you try a driver for an 'earlier' version of printer - this might give you a denser print - or can you find a 'generic' PCL5 driver ?? I've quite got into working SMD kit recently, find it less of a chore to do than through hole components - pic of a kit I built recently:-
  5. Are you using it for through hole devices or small pitch SMD work? Wondering if the registration is close enough on the printer to perhaps run the transparency through twice - enough to 'thicken' the toner already there? Never tried photo etching before, (I should have a go), but have successfully used the toner transfer method with the 'Press 'n Peel' sheets - even managed double sided prototype boards This method is also meant to also work with glossy magazine pages. Chap I know has been using a pen type plotter with a 'paint pen' to do his track outlines (large groundplanes, just etches the track outlines). I'm getting back into mucking about with PCB design again, and would be interested to see how you get on. I have an old 2100 kicking around, and managed to find an ethernet board for it, not sure if this would give more granular control over the toner density -using it over the network - must plug it in and have a fiddle! I have used these guys in the past for PCB manufacture and they've made really good production boards (double sided, through plated holes, solder mask and screen printed component markings) http://www.pcb-pool.com/ppuk/index.html Not sure how their prices stack up these days. What design software are you using? I did a few custom library parts for Eagle around 2003.
  6. How does keeping Tesco (a shop) out of Castletown help bring in shops? Not everybody believes that Tesco is the answer to all lifes retail problems. The fact remains though - had Callows Yard been developed properly and provided a proper retail experience that was valued and needed by the people of Castletown there would be no need to be hanging the retail future of Castletown on a last ditch deal with Tesco, and more people would already be shopping in Castletown. I haven't met any of my southern friends that would desire to have a Tesco in Castletown, in fact I would say most of them are totally against the idea. Callows Yard is a retail failure, putting a Tesco in there won't 'add' anything to Castletown.
  7. From the link above on the UK rejecting Tetra, I'm a bit concerned about this:- "Broadband data servicesHowever, instead of a private network – which the government deems too costly – the suppliers selected to run the ESN will be expected to enhance commercially available broadband networks with more coverage, resilience and security, using priority access for emergency services traffic." Tetra does have it's own limitations and problems, but who in their right mind would attempt to replace it with 4G ?? Tetra can be setup for meshing and device to device comms, you simply can't do this with a phone without a working cellular base station. Even the ancient Police/Fire/Ambulance VHF/UHF sets would be better than 4G! http://www.theregister.co.uk/2015/01/08/airwave_tetra_switch_off_gov_services_onmishambles/ I can't see any reason why they would need that kind of data for general voice-comms, and again - we'll still get issues with communication blackspots, possibly more so with 4G than with existing Tetra. If there is an emergency and every member of the public is trying to communicate with each other, and the emergency services are trying to communicate using the same system (even if they will have a higher priority MTPAS SIM) - there's no guarantee the network will hold up, we've seen what happens on New Years Eve, when there's no emergency!! There are a number of digital and C4FM type transceivers and base stations from the likes of Icom, Yaesu and other big radio manufacturers - these base stations can be networked together to provide a similar service to Tetra at probably a fraction of £5 million!! We have a few UHF amateur radio repeaters on the Island linked via 'AllStar' https://allstarlink.org/ This is an implementation of the open souce Asterisk PBX software - this allows other 'nodes' to connect, and also allows commands to be passed to various nodes via sending DTMF tones from the keypads on the radios, if the Gov adopted a version of this, with traditional UHF/VHF type radios, they could quite probably have almost Island wide coverage for less than £1 million.
  8. Never really seen anyone have any joy with WiFi repeaters, 2.4Ghz is crammed enough in urban areas as it is, 5.8Ghz is also getting crammed. Stick a wireless access point in one of your CAT5 sockets, and set your router's wireless channel down one end of the band, the access point at the other end of the band - to try and keep them from causing mutual interference. Any wireless CCTV type cameras (video, rather then WiFi), wireless baby monitors and wireless video senders also usually use the 2.4Ghz band along with your wireless - some of these also now use 5.8Ghz - these can totally kill, or severely disrupt your WiFi. Powerline adapters can also suffer from congestion if your neighbours also use them and they are on the same mains electricity phase. At the end of the day, you just can't beat a wired connection - however this is no good for tablets / phone type devices.
  9. It's usually copyright reasons - the compere will probably be under contract to not 'broadcast' 'shows' by his current agent / employer etc, so if he's doing a standup routine etc, that won't be able to be streamed/broadcast - but handing over awards and shaking hands won't be restricted and can be streamed / broadcast. So we are allowed to see some of what's going on , but not anything the money boys don't want us to. That sounds a lot like the day today Government of the Isle of Man. The compere maybe under conract to a particular broadcaster / company / agency not to broadcast any of his/her 'orignal' work, that's about it really - no conspiracies or anything like that...
  10. Very nice ship Tattosh - spent about 6 months on the build in Rendsburg on this one - installed getting on for 6 x 19" racks of satellite & A/V distribution - sort of (quality & expensive) kit you would have seen in a leading Cable TV distribution network at the time. Sailed through the Kiel Canal a couple of times, then did sea trials in the North Sea - moored later at Cuxhaven.
  11. Some proper tin-foil hat brigade going on there !!
  12. 105mb downstream sync in Union Mills for me, 2.5mb up since new profile changes. I'm probably around 300- 500m away from the local cabinet over the copper. Ports still capped at 40mb though, so I'm seeing 38 - 40mb on a speedtest. If folks can login to their router and check the sync speed, that will give what your router is capable of, any speed tests over a wired connection are typically 90-95% of what you see as your sync speed (apart from the capped 40mb VDSL ports). Try a few tests with a wired connection, if a wireless connection is very much lower than wired, might be worth changing the wireless channel on the router. Some wireless video senders, cameras and baby monitors etc use the same bands as your wireless router - as well as neighbours wireless access points - these are all sources of potential interference that can adversly affect your own wireless performance.
  13. It's usually copyright reasons - the compere will probably be under contract to not 'broadcast' 'shows' by his current agent / employer etc, so if he's doing a standup routine etc, that won't be able to be streamed/broadcast - but handing over awards and shaking hands won't be restricted and can be streamed / broadcast.
  14. Weren't they trying to push the Coastguard onto using TETRA a while back? It wouldn't be practical for the CG to use it though - Marine VHF that they already use is perfectly fit for purpose, they can use handheld radios to talk to each other, ships, SAR helicopters etc - if it isn't broke, it doesn't need fixing!! It is possible to demodulate a lot of TETRA traffic now, with software defined radio - even using a £10 TV USB TV dongle with a hacked driver as the RF front end. http://tetra.osmocom.org/trac/ Vid here showing on air frames being decoded:- The idea of TETRA is prety good, I just think it doesn't suit some of the local terrain - I've heard there are a few blackspots where there's no coverage - in a major emergency it should be possible to put a handset , or mobile into a 'repeater' mode to relay traffic from nearby users back to one of the base station / towers so extending coverage in so called black spots.
  15. Yup, that's the one I heard as well. Tough titties for crApple users That's it? LTE here gives you up to 42 and actually delivers that, at least in the CBD. No idea further out, but the new stuff they launched is actually fast as fückery. Surely giving such a small place as IOM super mega speeds everywhere should be well possible? 10 - 12mb seems to be the general global average - although it may peak 40 -50, - probably late evening / very early morning on a 'quiet' network.
  16. Great, you'll be able to get an average 10-12mb download on a mobile device.... Never gonna replace a decent landline connection - IMHO would have been better spending the money developing FTTH for homes & business. http://ee.co.uk/help/mobile-and-home-connections/checking-and-improving-your-network-coverage/our-network/4g-speed---what-you-can-expect http://www.verizonwireless.com/insiders-guide/network-and-plans/4g-lte-speeds-compared-to-home-network/ http://www.zdnet.com/au/speed-test-how-fast-is-4g-really-7000007995/ It will probably be pretty quick while there aren't many subscribers though!! I still don't really see much point in it myself - perhaps there's a killer app around the corner or something, rather than being able to stream a high-def movie on your phone, on the bus....
  17. I was wondering where i could find that info! IIRC The 'old' (1960's) radar that was on the old tower failed, just before TT week when the new one (1995) was being commisioned and no flights were disrupted, so is someome in Tynwald telling porkies ??
  18. I doubt there is anything still 'lethal' after an hour or two, depends if it makes you jump and hit your head on the ceiling though (or that's my experience of too many years dealing with the innards of such devices) The 'older' cathode ray type screens (tube) have fairly large capacitors in them, as well as the line output transformer - you'll get 20-50kv on these during operation. They should have bleed resistors on the capcitors to gently bring them down to zero volts, but this can take a while - you should in theory be safe mucking about with them after a few hours -but I would still be wary. Plasma TV's need a failry hefty voltage to illuminate the pixels, and capacitors / coils to generate these voltages. LCD TV's typically have one or two high voltage flourescent tubes either side of the screen to illuminate it - these also have a transformer and capacitors to bump the voltage up - these are usually pretty small devices, but still might hold a charge for a wee while. If you're not sure what you're doing, probably best leaving the innards of these things alone.
  19. I have sometimes seen the new radar stationary as I often walk the dogs near that neck of the woods. I beleive part of the 'new' system has seen lots of colinear ADS-B antennnas popping up around the Islands comms towers, the signals are received from the aircraft on 1090mhz, if you see any of the new white antennas (about a foot long) - you'll probably also see some small GPS puck antennas with them. With the info from the ADS-B receiver, and a very, very accurate time stamp from the GPS clock (lots of receivers locked together), it is possible to make an accurate assumption of where the aircraft is - the more time-locked receivers - the more accurate fix. You can build your own ADS-B receiver on the cheap - just get a RTL type USB TV dongle, (£10 - £12) and you're 90% of the way there, I've had a muck around with this, and it's surprising how well it works, even with the crappy stock antenna that comes with the dongle - add a decent antenna and you have quite a decent little system. Info here:- http://www.flightradar24.com/dvbt-stick Not in the same league as the professional kit - but a hell of a lot cheaper...
  20. That will only work when we can bring in a law that stops folks from owning more than 2 (perhaps 3) properties... A house should be a home, not a tool for extracting the most amount of money possible from those least able to afford it. I often wonder how much taxpayers money is wasted on government subsidising landlords? If we stopped the slum landlords, this could free up a load of property, and possibly bring prices back to a realistic level (50-60%) of what they are currently 'valued' at. This would make it more affordable for the general population to rent, or buy. Could we put a huge capital gains tax on landlords owning more than a few properties? - Put the money made from this into more affordable housing for the poor - this could also help bring property prices down to a realistic level.
  21. The island could do with a few more high net worth individuals like Henry Bloom Noble...
  22. It should test the line to your property - in my eperience you'll probably get a bit more than indicated - however - it is down to the usual line length from your local exchange / street cab etc.
  23. Is that flights of craft or flights of capital?Flights of fancy. Oh come on are you seriously suggesting that manned space exploration from an ex Soviet fridge freezer launched from a partly de-commissioned WW2 airbase in Jurby by 2015 is pure pie in the sky speculative cloud cuckoo land bullshit? You Sir know nothing about the vision and integrity of the Manx Space Industry ;-) If you actually look at the history of the Russian Salyut Space stations, the Russians were way ahead of anyone in this aspect. The Salyut modules became the building blocks of the Mir space station, and later, the Zvezda and Zaraya modules of the current International Space Station - hardly an ex-Soviet fridge freezer! The re-useable crew modules have been tested, - this idea is being used by SpaceX who are doing very well with launches at the moment. I don't think much will happen with the kit that has been housed in Jurby - I would put this down to probable lack of finance, rather than major problems with the physical hardware (the 'shells' have a great heritage and are certainly well space tested) - just need to put some modern innards in there and have some billions left to launch them .....
  24. matty

    Dab Radios

    The existing DAB transmitter is at Carnane, not Richmond Hill. Any radio system can be improved by going for a decent antenna, in fact this would be the most important part of the setup - however as you mentioned many 'portable' radios don't have provision for this. DTV > Analogue - yes we do get more channels, however it is definitely become a case of quantity over quality, we have much more crap and a lot less quality programming. I found this quite an interesting article!
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