A Mystery Transmitter Appeared! - This Is What It Does
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- Опубликовано: 13 май 2024
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5:50 Backwards?
I read this comment as soon as I saw the smoke going into the stack 😄
Its one of gretas new CO2 vacuum facilities
I did that to see if anyone would notice 😂
See! Pigeons can fly backwards. :-)
@@RingwayManchesterit's GUReat information thank you
Do they realise that they are missing a couple of ridge tiles from the roof??? 🔌🌧
I was thinking that.
That bothered me too.
Awesome to see others noticing this 👍
They will now :)
Everybody does that. No one cares about it 🙈
I've given up on DAB. Where we live in Devon, the signal is anywhere between very patchy and essentially non-existent. Then the super-compressed low bitrate audio sounds ghastly even if you drive to somewhere that does have a signal.
Time to start your own repeater like this one?
Im up the road on the somerset border so i feel your pain
You could probably do with a high gain DAB aerial on the side of your house, to help bring in a stronger signal...
Where I am (Northamptonshire) the signal is nice and strong and in some areas I can even get coverage from neighboring counties' multiplexes. The true Achilles' Heel with DAB is the super low bit rates, resulting in a less than stellar audio quality.
@@TheSpotify95 Radio stations here in Estonia have expanded there FM range and Coverage and signal quality but nobody is putting money into DAB. most new radios and car radios sold here have DAB built into them but is not used here.
Are any of those involved ex KFM, the 80s LBP station in Stockport?
I don't use DABradio as the quality of the audio, even in the car, is rubbish. It is like listening to AM mono radio compared to FM stereo. When i first heard tests on DAB in the 2000s the audio was over 200Kbps, now its mono at as low as 32Kbps.
When I was a kid... A polygon was a missing Parrot 🤭
Bah dum tiss!!! 🥁
@@the80hdgamingbeat me too it 😂😂
It is a training quarry
Hahahaha 😂😂😂😂😂
This is why I am still happy to pay for my broadband connection 😂
Yes, the T & K brackets are the wrong way round. 👍
It only appears that way because Lewis is filming everything in reverse 😁
@@adamswl969 So it's a perfect K & T bracket?
every single PMR install i have seen since the 90s has the same problem with brackets.
I’ve always fitted them that way round, oops! I’ll have to hand my NVQ back in haha
And poor quality
One smart thing about DAB is that it can use SFN (Single Frequency Networking) where a national multiplex can be transmitted on a single frequency across a whole country. The BBC national multiplex uses it on frequency 12B,
Help me with the math guys. They shut down all the AM transmitters (1 would cover the entire country) because it was so costly.
Now you need 25 new digital transmitters to cover the Manchester area alone? And users MUST buy a DAB radio.
How the F**K did this save money?
It got you paying tax here there and everywhere... only to be blown on dodgy PPE from a Tory Lord
Mmmmmm…. Yes, that’s correct. 😂
Less power smaller sites new receivers is a cost for you but am and fm are better in a lot of ways
AM was total crap, especially at night. An AM transmitter can carry only only one channel but DAB can handle lots of them. DAB is very good for local limited range transmissions. Furthermore the same channel can be carried on many spread out transmissions without ant co-channel interference.
Do you know how much electricity costs these days?.
Looks like an end fed "taxi" style dipole aerial, but obviously band III instead of band II, with a GPS receiver for SFN synchronization.
The DAB system is technically very interesting. Each transmission consists of hundreds of separate carriers each carrying a relatively slow data rate. The slow rate means that the effects of multipath propagation is minimised - hence the multipath problem of FM, for example, is more or less eliminated. Delayed signals from different transmitters affect things just like multipath propagation. As long as the delayed signals arrive within a certain time period, they aid reception rather than destroying it. This means you can get a pretty seamless coverage in a particular area, with no need to hop to different frequencies as with the FM system. The overall DAB data signal is spread out between the different carriers, with strong error correction within the bitstream so that loss of some carriers (due to fading or interference) does not mean complete loss of data. The system is designed to carry multiple audio channels, and was initially developed by national broadcasters like the BBC and other European broadcasters who had multiple programme streams to transmit. It did not readily translate to the regional FM world where individual stations on discreet FM channels predominate. This explains why DAB is not big in the USA which has relatively few national networks as such.
COFDM is very ghost tolerant but has a wider bandwidth and shorter range.
Lewis, thanks for the great explanation and overview of how this system works.. Cheers!
excellent !!!!!
Excellent content and thank you for the info. Thumbs up 👍🏼.
Cottager's found this structure ages ago. And i believe they were extremely disappointed! 😱🤪😂
Okay but why is the gutter channelling rainwater into the building?
Water wheel powering the station? :D Is gathering rainwater to water the lawn required in UK?
Water cooling for the transmitter possibly
@@randomnickify One of the many rules we all ignore - the 'hosepipe ban'
I guess the lack of downpipe externally was an anti-climb effort.
I used to love going to Werneth Low to watch the planes.
Somewhere in the UK, a man slaps his fist on a table and says Damn! He has already found us out!
Lewi is on the ball.
I always love your videos; they are very informative and well-researched.
I hope that in the future something with radio and trains would come into play, because if you had a collab with jago hazzard, i think i'd lose it
Your two voices are so similar and I would freak if they came together lol
Voices similar?! You jest, surely?
Another great video Lewis.Dab = Dead and Buried ,Give me good old fashioned analogue FM everytime.
73 G7HFS/PA3IKH (ex Eastbourne 80's FM pirate )
You can pirate on DAB so all is not lost! A bit more complicated and expensive, but you could get those old 10GHz links back out. On my TX aerial in the NW i used to be able to RX Dimension FM and IBC .
Great use of the spectrum analyzer to solve the puzzle! Much more effective than old-school with a frequency counter.
Happy Birthday from the crew in Australia
Vielen Dank für das sehr informative Video, 73
Some very nice information starts from here. 06:05 Thank you.
I loved DAB and had 4 DAB radios now my favourite broadcaster Classic FM has gone to DAB+. My response was to switch to Swiss Classics an internet app. The main advantage is there is no advertising on it. I had a mobile phone with a faulty fingerprint reader on it. Hence I downloaded Play SFR. and purchased a Bluetooth adapter for my stereo. Playing the Swiss Classic straight onto my stereo by Bluetooth.
So much for trestle broadcasting.
Radio Swiss Classic is the finest radio station (from Swiss). another decent station are ABC classic FM with "less" quality
A lot of stations are DAB+ now. There's only about 5 or 6 DAB stations on D1 National and the same goes for SDL National; all the remaining commercial stations are DAB+.
Of course, there may still be vanilla DAB services on the BBC National multiplex, as well as whatever local multiplexes you can receive.
Here I would expect to find a analog FM voice chanel on that freq for a public service like ambulance, police, sheriff or other public safety.
I like a bit of spy craft
Is this something we call in Norway as a "backpack" soulution? In Norway as an ham operator on 2m, we have repiters copplet up so we can reach most of the coutry on 2m. The best from LB1NH 🙂
DAB+ has kinda-died in Australia too. Everyone streams music off the Interminets now.
That is rather out in the sticks where there is no cellphone coverage.
Thanks Lewis
Great video, Lewis...👍
Great video as usual buddy, interesting.
0:49 doesn't Mcr look tiny from up there! 😎
A really good video as always, thanks. I bet you never thought you'd get inundated with missing parrot comments!
Another great video!
Thanks RM. Take Care and Radio On******
I can't work out where the audiences for these local, small scale, stations come from. How many listeners do OFCOM expect a station to have to justify the use of the frequency?
Nothing to do with OFCOM. All that matters is whether the station operators are able to make it a going concern.
Shout to my main man in DAB, Ash Elford! Really informative video.
Went through an FM licence application and then subsequently a DAB application with OFCOM some years ago when I was involved with Bob FM / Jack FM / Hertbeat 106 based at the Pump house on the Knebworth estate. I confirm what you are saying. It's quite complex and there are a lot of hoops to jump through...!
DAB = Failure. Can’t receive in the car without it dropping out continuously. It’s appalling and annoying.
The quality used by stations is also awful. Often mono and often with a lowest common denominator bitrate too
I guess LW must stay on the air then for long distance coverage on 198 kHz since DAB+ still is failing.
@@AdamEbelgccengineeringworks great for me in Australia
It depends on what your antenna system is like. If you've got one of those really small aerials that stick to the windscreen (which you can buy off eBay or from certain car related shops) then it's no wonder your DAB reception is poor. You need a decent external aerial on the top of the car's roof mounted vertically.
DAB=Dead And Buried 😂 Give me old fashioned analogue FM everytime.
73 G7HFS/PA3IKH (ex 1980's FM pirate 😊)
Very interesting site! Regarding DAB, here in Norway the national FM network was dismantled some 8 years ago. DAB has poor coverage in rural parts of the country, where FM gave a noisy, bur readable signal at least. Some local stations still have FM, but probably not for long. DAB should be spelled backwards ;)
Great video, one of my favourites as there aren't many videos on DAB. I've been using DAB since around 2002 and sadly the quality has taken a dive over the years which is mainly driven by commercial stations dropping the bitrate to focus on fitting more on to the multiplex. Quantity over quality springs to mind. I guess they thought they'd get away with it as many DAB radios are mono anyway (one speaker). Thankfully DAB+ is improving the quality and I'm glad to see more stations adopting it, even if it does mean my Pure "The Bug" is now receiving fewer stations.
The issues many are having with DAB signal dropping in car can be solved by fitting a roof antenna rather than relying on those stick on windscreen antennas which are useless, especially if you have a Ford with a heated front windscreen.
As for reversing cameras, the cheap ones are known to cause interference with DAB and other radio signals so either think carefully about where you're running your cabling, check your earth points, or buy better kit. Ideally a combo of all three.
Finally, SSDAB, small scale DAB: I find it frustrating if you're in a car and moving around as the limited range means you're soon having to find another station.
How long will it be till the big commercial players decide to go after it like they did with all the local FM stations around the early 2000s?
We really need one of these small-scale DAB transmitters in the Hope Valley. We have ZERO DAB - and have to make do with a handful of FM stations. Same for TV - we only get a subset of the Freeview channels. Our local MP has got involved, but nothing has happened for years.
Same in my village in a valley in rural Northumberland. Small radios are useless. No DAB signal at all and FM is very poor too.
@@ChoppingtonOtter I have seriously considered buying a cheap 10W FM transmitter from eBay and just rebroadcasting the signal from an internet feed. BBC/Arqiva won't do it....
@@edwardbyard6540 I think you can still buy cheap FM transmitters. I have a 7W one which I'm keeping just in case.
Here in Estonia i have seen Radio stations put money into better FM antennas and better signal coverage. nobody is putting money into DAB here. Telecom companies here have made it so your phone/tablet/car has mobile data coverage pretty much everywhere so you can just pull up a Radio app if the FM signal falls short. currently the only problems we have with pretty much any radio signals is once you get close to the Russian border. i am fairly close but not too effected because i am living very close to TV/Radio tower like 1,3 km away
@@ToomasTelling DABradio is finished in the UK, it failed because of -
1. Advertisers
2. Poor Audio Quality
3. Choice of different stations
When it first appeared, the audio quality was brilliant as bitrates were high, some as high as 320kbps stereo on the BBC test stations. As time went on, it was all monetised and people looked at ways to get back their investment and make money. It went away from being a method of transmitting stations to one of selling advertising, making every channel play automated music with adverts and a bit of talking over the top. Many of my local DAB stations play the same music from the same feed, but change the announcements. Why just have 4 stations on a multiplex for example, when you would have 12 or 24 all running really low audio bitrates.
That is why no one listens now. Who wants MONO audio at a bitrate and audio quality lower than a standard AM radio.
In North West UK if you listen at home or in a car to stations on 88-108MHz FM Stereo, the audio quality is really good. Listen on DABradio and you get thin or tinny MONO with 16kbps to 64kbps and it is "quiet", plus there is no processing, no dynamic range, no compression etc, so unusable in cars.
Most stations rely on streaming.
DABradio was a "gap filler" while Streaming Services were improved and people started to use them more thanks to unlimited data on phones etc. I now just stream music in the car, I don't bother with DABradio and only use normal radio if there is no coverage on the phone!
The choice of frequency up around 200MHz was odd too, if they had used 68-88MHz the coverage would have been vastly improved, especially for mobile use. Less transmitters and links would have been required. I use 4M amateur band (70MHz) and the coverage is really good compared to 2m and 70cm for example.
Great discovery, and great that open source software is used. Some of the frequencies used is just one reason not to transmit on the extra band of a tri-band radio!
Concerning the brackets, the top bracket should be at the bottom and the bottom one at the top..... You are right to query.
Strangely fascinating..
Thank you Lewis for clearing this up.
Here all this time I thought DAB stood for "Dirty Attorneys Beware" ! 🙂
Of course you missed the aerial. It was playing Hyde and seek.
The rf equipment may be good but the slate roof needs some work!😂
i like it when the editor uses tricks to see if anyone pays attention to the question .... are the geeks actually watching the footage . But by the reaction of lewis himself (you wonder if he knows what happened) , the smoke is pooring back inside the building and its done with eighter alian magic or playing the footage backwards .
If they could do something like this to offer the pirates a way to go legit would be great .
Is there any way you could take a look at Sauratown Mountain NC, many different types of towers and seemingly very high security, (many cameras, gates and alarms which peaks my interest). I've had a lot of trouble finding any information myself, as it is impossible to get within 1,500ft of any tower. I would understand if you can't. However it would delight me if you could.
I would have expected them to repair the roof, lol.
This sort of thing really fires both my infrastructure and radio nerd neurons. I'd love to see inside it. Presumably it is fed from a digital feed over ADSL or fibre. Those ridge tiles seem to have been missing since at least 2016 (Streetview), so I suspect it may be intentional, with some other weatherproofing that isn't visible from the ground. I wonder the building's previous purpose was, as it seems to be rather hidden in the trees in older photos.
Think I saw this on the MB21 website as someone had uploaded pictures of this site with its DAB aerial. Very interesting to see these small scale transmitters.
I'd imagine this one would work OK as it's on favorable terrain, though the trees nearby seem too close to the aerial (in terms of height). I wonder how far transmissions get out from this site?
I uploaded those pics :)
It depends on the aerial. If you only want local coverage, a single aerial with medium to high angle radiation pattern will cover the locals if it is low down. If it was high up, a downward tilt or something like a Slim Jim or J pole would be better to give a blanket coverage and not get too far. No need for higher gain aerials there.
Some of those lower frequencies are used by law enforcement in the USA while some of the 220 MHz are amateur and military aviation frequencies in the USA.
at 5:48 it is the new latent heat recovery system, turns clouds into warm water.
Wait, is there a setting for a waterfall display in the TinySA? I have one and don't remember seeing that. Maybe a firmware change?
Came as standard, in the display menu
Smoke going backwards, rain pipe going into the building, makes me wonder if this isn't AI generated.
I just reversed it to see if you were paying attention
carbon capture device obviously
What are they broadcasting? Does any one still listen to commercial radio?
This similar to the Low Powered FM station we have here in the US. My college run a radio station that used to transmit on 88.9 FM but streams only now. The low FM band is not usable by commercial licensees due to interference from other RF sources, but it good enough for use by non-profit entity like college district (small polygon in British terms).
TV channel 6 would be picked up on radios.
Does the 'downpipe' from the gutter of the building go inside - perhaps to prevent people climbing it?
Hi, I was wondering your opinion on the future of transmitters broadcasting DVB with Everyone TV the operators of Freeview now launching an IP Streaming service Freely to in time replace Freeview and OTA broadcasts. Although it seems not to have all the channels via streaming yet, RX TV reports “the Government expects streaming to become dominant, with licences to broadcast terrestrial services only to run until 2035.”
Ive never seen a dab transmitter room this small most bbc national are big rooms big mast like divis belfast crystal palace London Holme moss Redruth Cornwall north hessery tor devon are the main dab transmitters for uk never seen one this small cool to see different ones i worked in radio myself your vidios are interesting ❤
whats your thoughs on SPACE ? and transmisson
Pie Radio? From Wigan?
Personally I go for Radio Tameside, or BBC Radio Lancashire, sorry local local radio
A mystery Birthday appeared! 🎉Happy Birthday M8!
Also happy birthday to my grandpop! Born on this day in 1931!
£30,000 investment and the roof still needs fixing!
Have ridden past there many times recently but wouldn't have spotted it, probably from being distracted by TEJRJWNE a little further on 😽
Is DAB always vertically polarised?
Interesting... i imagine this work the same in other nations... or in a similar way...
Wonder how the multiplex is delivered to the site. Via a fibre connection maybe?
low TX but on a big hill nice
What’s the 4 masts used for near Ashton under Lyne running ground near Ikea used for? Used to run around that track for years not knowing why they’re there
ruclips.net/video/3FZNBqFoHm8/видео.htmlsi=BdlsQRywipkL1wua
Does anybody know that DAB+ is actually official in the UK ? As I have seen no Ofcom document, and have asked Ofcom when did they approve DAB to DAB+ comms licence, and what was this start date ?
Its the same for alpha phone numbers, they are not Ofcom licenced or approved, as such unlawful under the Comms Act. I have asked and put in a concern to Ofcom.
This is unrelated but what is the best device for extending wifi signal for a long distance for a reasonable price ?
Thanks, I don't like DAB because it either works or
Is DAB popular in the UK compared to MW and FM?
Could you please increase your audio on these technical reviews?
Ah, that's why I never see parrots in your antenna pics.
Polly gone.
👍👍👍👍👏
👌
DAB sounds interesting. We don't have it in the US AFAIK.
You're not missing much. It's like digital tv. If you've a very strong signal and a good receiver its great. If you're any way "fringe" reception it's painful to listen to. Music breaks up and drops out and speech sounds like they're broadcasting from a bathtub under the water !
Also they cram as much in as possible in as little bandwidth, so many stations are mono and low bit rate. Even the high bit rate stereo channels aren't as good as their FM equivalents. You do get quite a variety though.
We have SiriusXM satellite. Same ideas. Lots of choices but poor quality sound.
the frequnecy keeps wild Parots away, thus, why they call them Poly-gones 😄
The Topo also helps lol good joke
6:10 - I think the brackets are fine.
It's generally accepted that the K bracket should go at the bottom, so the more substantial bracket takes the weight of the whole structure. It probably doesn't make much difference in practice - nevertheless, the pair in the video ARE the wrong way round.
@@Bartok_J With the T at the bottom, it is taking the whole weight. I always fit them as in the video - bottom one holding the structure, the upper one negating the wind torque
In Ireland the forward thinking government decided to get rid of DAB. Its coverage was poor outside of dublin. I look forward to going to Northern Ireland where i can enjoy a smorgasbord of choice
The parties involved with the install, equipment and day to day multiplexing is incorrect as it changed from the time of application, as did the site.
Tell me more
18 channels on one mux? The quality must be dreadful.
Techmoan's video on DAB is sad, as unfortunately the powers that be seem to want to cram as many stations as they can in the space, with horrendously low data rates, and poor quality out of that.
With all those stations hooked up to the same audio feeds, just with different adverts played and different announcements.
it really is in a terrible state now, I was SO disappointed when I got a DABradio after it first come out. I expected what was lied about on the false DABradio adverts about "crystal clear sound" and "Great audio Quality". I got lots of stations, only two local ones in stereo and everything else was mono, some sounding worse than MW. I had DABradio as standard in my car and used to listen to KISS as the bitrate was 160kbps and it was stereo. That last a few months and it went to 128kbps, then 112kbps and now I think it's 64kbps MONO. No one wants that rubbish quality. I wanted a DARradio with TWO speakers (for stereo) and could never understand why so many of the Pure radios were sold with just one. They knew everything was going to be low quality mono, so no point selling a radio with two speakers!
Advertisers lied about DABradio to promote sales and they misled people. Many were fined and forced to stop lying about the audio quality, coverage and claims of "interference free crystal clear audio".
its just a bad way to do things its like the worst of analogue and the worst of digital combined
I am not sure SSDAB is viable. I know of two that suffered financial failure. Also, quite a few that have been advertised by Ofcom have had no expressions of interest.
is that a Hexbeam at 1:51
That is an absolutely fantastic spot! Well played! I didn’t notice it
@@RingwayManchesterI can't see it
@@RingwayManchester Great antenna it's on my to buy list 🙂
bottom left
Failing to put two and two together. Story of my life :-( .
But I counter with "I make it up as I go along" per Frank Muir from the "Fruit and Nut" advert. (Before your time Ringway).
And they are not polygons (2 dimensional figures) but polyhedra. Tsk! What do they teach at schools these days?
All tongue in cheek, thanks for another informative video.
All the best.
From a governance point if view the way radio licensing is set up and the complex structures needed to compete is opaque and far from ideal. The very opposite of open government.
Stockport ssdab Lewis and that colinear needs binning there junk.
UK dab is bust Lewis they went under last year. And block 7d, 8a, 8b, 9a, 9b and 9c was allocated to ssdab only along with Bolton on 10b and Cheshire east on 11c as there free freqs in that area that is usable.
I wonder if DAB towers are as harmful as cellphone (i.e. microwave radiation) towers.
Wow they don't make it easy to setup a station, you kind of have to be an ex-politician to handle all the gooblygob, with polygon as the least of your worries.
DAB? Does the UK not use DAB+, like many other countries?
DAB+ seems to be significantly better than DAB, however I don't know the details.
Joking aside, it's such a shame that one day in the not too distant future, FM will be taken away from us. DAB might sound great while zooming along the M1, but the actual audio quality is rubbish compared to FM. BBC Radio 3 is given a higher bit rate than, say, Talk Radio, which is understandable, seeing as R3 is a classical music station. But with good old FM and a decent receiver, the quality is top notch. DAB has more stations than you can throw a parrot at (sorry!) , but we're told to like it or lump it, a speech station has a low bit rate, tuff!
Dab digital one and bbc national have dab transmitters in Northern Ireland belfast they use eti feeds from London over the Internet similar to there Internet radio stream eti is very popular on dab transmitters and dab sounds so alike internet radio especially bbc radio 1 classic fm and Capital they use very high quality dab bit rate identical to internet radio ❤
5:57 is reversed!?!?!!!
How about an explanation of how terrestrial DAB works? Here in the U.S., we have satellite-delivered Sirius/XM, which competed (Different protocols and satellite topologies) before they merged.