Some might consider this thread gone off in the realms of fantasty or maybe not. The coast road in North Norfolk goes past the high security radar + base at Trimmingham ( was M&GN/n&s jT ) and some while agho some cars of French manufacture were grinding to a halt as they passed the installation. 'Nothing to do with us guv ) was the initial and repeated response from the MoD until the number of complaints grew................and then the problem ceased. Were the frequencies at Trimingham altered ....................no public comment.It was reported that people living below Rampisham Transmitting Station on Toller Down (A356, Crewkerne to Grimstone) http://tx.mb21.co.uk/gallery/gallerypage.php?txid=1662&pageid=2500 used to have problems with using remote key fobs and had Russian coming through their toasters so it's not un-heard of for high power RF to cause issues though I would doubt that this is the problem here.
Some might consider this thread gone off in the realms of fantasty or maybe not. The coast road in North Norfolk goes past the high security radar + base at Trimmingham ( was M&GN/n&s jT ) and some while agho some cars of French manufacture were grinding to a halt as they passed the installation. 'Nothing to do with us guv ) was the initial and repeated response from the MoD until the number of complaints grew................and then the problem ceased. Were the frequencies at Trimingham altered ....................no public comment.
Think they are visiting,for Exercises or passing through.Definitely not based there.There are USAF E-3's (Awacs) based at Lakenheath. I have seen them fly south over the line after take-off. As a high power lookdown Pulse Doppler radar is fiited. And as they are still at a low height (5000ft), could the radar signal be having a effect at this low height.
This makes no sense. How can extra power magically appear between transmitter and antenna?I will point out that when I mean high power, I mean HIGH power, the highest powered transmitters were Marconi 500kW units with the lower power ones being ~300kW units I believe, and there were multiples of each. Now I'm talking about the rated power of the transmitters themselves here not the ERP once it comes out of the antenna which unless the aerials are very inefficient, which I doubt, will be much greater than the rated transmitter output power.
Weren't the class 92s getting knocked out by a nearby factory's electrical interference around Warrington though?This makes no sense. How can extra power magically appear between transmitter and antenna?
Unless you've discovered a free source of energy and thus will be the saviour of the climate.
And I highly doubt any aircraft radar is causing issues with trains (but no cars, mobile phone miles or other equipment) several miles away.
ERP (effective radiated power) is the power equivalent to an antenna that radiates equally in all directions, so a directional antenna can have an ERP higher than transmitter power - because in the strongest direction the power density is higher, at the expense of weaker power in other directions.This makes no sense. How can extra power magically appear between transmitter and antenna?
Unless you've discovered a free source of energy and thus will be the saviour of the climate.
And I highly doubt any aircraft radar is causing issues with trains (but no cars, mobile phone miles or other equipment) several miles away.
Depends what the software update actually includes.Test train is apparently running tomorrow on the Bury branch with updated software. Let’s see how that goes.
Either some 755/4s are running in multiple or the random number generator has got into the boards.Can someone explain this
21:20 Cambridge to Norwich due 22:37
Facilities on the 21:20 Cambridge to Norwich due 22:37.
Will be formed of 8 coaches instead of 12.
Yes, that's why the Crystal Palace transmitter, for example, could radiate 1MW on analogue without requiring 1MW or transmitter power.ERP (effective radiated power) is the power equivalent to an antenna that radiates equally in all directions, so a directional antenna can have an ERP higher than transmitter power - because in the strongest direction the power density is higher, at the expense of weaker power in other directions.
ERP (effective radiated power) is the power equivalent to an antenna that radiates equally in all directions, so a directional antenna can have an ERP higher than transmitter power - because in the strongest direction the power density is higher, at the expense of weaker power in other directions.
Yes, but you're confusing ERP with actual power. If you have a 1MW transmitter you can't get more than 1MW power from the aerial.Yes, that's why the Crystal Palace transmitter, for example, could radiate 1MW on analogue without requiring 1MW or transmitter power.
It's the same with reception, naturally, where an omnidirectional antenna will have 0 DB of gain, or in some cases negative gain (halo FM antennas being an example) and a directional aerial will have positive
https://www.realtimetrains.co.uk/train/86991/2020-02-05/detailed Is this it? Empty move Crown Point - Ipswich - Ely - Ipswich - Crown Point. Pathed as electric locomotive with 755 tonnes trailing load, heh.Test train is apparently running tomorrow on the Bury branch with updated software. Let’s see how that goes.
That'd explain the struggle with gradientsPathed as electric locomotive with 755 tonnes trailing load, heh.
Has just moved 22 late https://www.realtimetrains.co.uk/train/L47211/2020-02-05/detailed probably a reboot was done. Funnily enough if it had been stopped any longer it would have delayed the train with the suspected software update on test to resolve this issue. https://www.realtimetrains.co.uk/train/86991/2020-02-05/detailed.Sitting on 3 car Ipswich to Peterborough at the moment just failed at Chippenham junction
Yes they do not seem to like prolonged periods of power. That service is limited stops..so more time in power and less time to cool down. A pattern is emerging. So is the hardware at fault cooling issues, radiator air flow blockages etc) or is it a software glitch? The long reboot time gives the engines a chance to cool down if they are overheating.Has just moved 22 late https://www.realtimetrains.co.uk/train/L47211/2020-02-05/detailed probably a reboot was done. Funnily enough if it had been stopped any longer it would have delayed the train with the suspected software update on test to resolve this issue. https://www.realtimetrains.co.uk/train/86991/2020-02-05/detailed.
Has just moved 22 late https://www.realtimetrains.co.uk/train/L47211/2020-02-05/detailed probably a reboot was done. Funnily enough if it had been stopped any longer it would have delayed the train with the suspected software update on test to resolve this issue. https://www.realtimetrains.co.uk/train/86991/2020-02-05/detailed.
But, are there 2 compartments,each with 1 engine + empty space, (most logical IMVHO), or... 2 normal-sized engine compartments as per the 755/4's + 2 sealed off empty spaces, possibly filled with extra fuel tanks? 'Tis a mystery.....If i remember correctly weight per unit is 168 tons for a 4 car and 132 tons for a 3 car. Either way, even the 3 cars only need around 4 to 5 mins to reach 100mph in diesel mode. So you would expect that these would have been tested under full load for much longer than that. And probably a cycle of full load followed by idling or to replicate real life driving. The 3_car units only have 1 engine per engine compartment so in theory should be more volume of space for heat to dissipate..
Has just moved 22 late https://www.realtimetrains.co.uk/train/L47211/2020-02-05/detailed probably a reboot was done. Funnily enough if it had been stopped any longer it would have delayed the train with the suspected software update on test to resolve this issue. https://www.realtimetrains.co.uk/train/86991/2020-02-05/detailed.
He loves being in the limelight doesn't he?
Well, not exactly unexpected. If 2-car trains are overcrowded, 4-car trains running half as often will be similarly crowded