Originally Posted by Ed3925:
“It does show that Three are very behind on 4g coverage though. EE, O2 and Vodafone all have a lot more 4g.”
Yes, that is true - Three are very behind on the 4G rollout, with O2/Vodafone having more 4G coverage.
Though having said that, when there's no Three 4G, there is 3G, which will still work on the vast majority of sites.
On O2/Vodafone, however, where there's no 4G, there likely won't be any 3G either (due to L08/U09), with the fallback being legacy U09/21 or G09.
Originally Posted by
_m:
“The vast majority of red will be weak 3G/4G.
The key words being 'can' and 'decent masts', With a full train hanging off a mast at these levels it really isn't ideal in terms of capacity. Moreover, -115db for 4G and -100 for 3G are the thresholds Ofcom use for 'outdoor' coverage so given that I was already in a train, they're reasonable values.
I compared the signal I was getting against what I already knew in terms of signal in that area and the Hull Trains peasant wagon didn't seem to block too much signal
”
Thought so, certainly with regards to EE and Three because Three don't have 2G and EE is set up to only use 2G if there isn't anything else (if only my S4 also did this!). Whereas Vod/O2 have the fallback thresholds higher, if I am right (I'm sure I heard it on here).
You are right though. If it was driving in a car, then the weak signal amounts will be OK as there's only a few cars in a given area on most roads. Whereas a train being jam packed with people all trying to connect to -111dBm 3G is not ideal at all...
Didn't know about the Ofcom definitions - though they do seem reasonable (so your phone won't be hunting for a tiny bit of signal...) Having said that, I did manage to make/hold a call on 3G that was down to about -107/-109dBm. And I know that I could use 4G in the -120's, as that was what I ended up using at Thorpe Camp, Tattershall (Lincs) when I was last there (3G was worse, cutting out or just about clinging to -111dBm...)
Most older trains, and some modern trains, are OK with regards to signals. Thameslink trains between Bedford and down south (St Pancras etc) are fine. Intercity 125 trains are fine, as I always tried to get those when using East Midlands Trains. Anything based on Class 22x (Virgin Class 220/221/East Mids Class 222 etc) are horrendous because of the metal film, and your only hope is to pay for the wifi (unless you are lucky enough to be within range of First Class wifi).
Originally Posted by jonmorris:
“Do they not have any solar reflecting film on the windows? That can make a big difference and is where some old trains have the edge (rather than windows that make you just see EDGE).”
The Class 22x trains are a good example of the film making you see EDGE or GPRS!
For example, at Kettering Station (Northamptonshire), inside an Intercity 125 train, you can get 2-3 bars of 3G, and likely 4G too. Outside the train, on the platform, 4 bars 3G.
In a Class 222 train you might be lucky enough to get 0 bars 3G at the station; failing that it's nasty 2G. And that's quite close to a 3G/4G mast!