I started to use the N 700 series Shinkansen so I used it immediately ~ Speed ​​report edition ~

Today, from March 14 (Sat) on 2009, between the N 700 series Shinkansen "Tokyo - Shin Osaka"Internet connection using wireless LAN became possible in the bullet train carSo, I immediately measured the speed of the N 700 series (N700 system Nozomi No. 2 from Shin Osaka) on how fast it is.

In order to work in the Shinkansen train so far, we have been using the communication card one after another feeling like WILLCOM, au, EMOBILE, NTT docomo, and so on, none of them has become distant from Nagoya to Shin-Yokohama In a tunnel hell like such tunnel hell I was repeating the nightmare that communication can run out, so I'm curious what will happen around that.

I applied for this measurement in advanceHotspot · Express(390 yen per month until September 2009, initial cost free) used. Start using the laptop computer (CF - W 5) at Shin - Osaka station 's waiting room and enter the bullet train as it is. We started downloading an HD movie file of 2 GB size close to the FTP server which was installed in advance at home at the time of departing just at 6 am and continued to record the down speed in real time every second It was.

Therefore, the speed report details are as follows.
I arrived at Osaka station first. For some reason the train is four minutes behind and rain outside. I will head to Shin Osaka.


Arrived at Shin - Osaka station. I will get on the N700 Nozomi No. 200 originating just at 6 am.


Connected to the wireless LAN using Hotspot · Express in the waiting room in the station premises.


Enter your ID and password to login, and make it available. If it is somehow in the station premises radio waves are strong enough to connect anywhere even if it is not in the waiting room, so go go to the Shinkansen as it is.


I got on board as the N700 series came.


At the same time as departure, FTP starts downloading and starts speed measurement.


What a sense of stability, this is amazing.


About 100 KB / sec keeps going out steady all the time.


As for the N700 series there are outlets in this way at the front of the window side and the rear most side, so the power supply of the laptop computer will be supplied from here.


Next let's look at the graph which recorded download speed actually recorded. A communication graph from 6:48 departing to 1 hour ago. It is the moment that the first person jumps out of the waiting room before the morning.


Below, it is a memorandum that recorded graphs and records when changes were felt.

■ 6 am
2009/03/14 06: 00, Shin Osaka station departure
2009/03/14 06: 13, Arrival at Kyoto Station
2009/03/14 06: 16, Entering the tunnel but without any problem communication, about 100 KB / s.
2009/03/14 06: 25It turned out to be a rural scenery as far as I could see, but as usual it is still about 100 KB per second.
2009/03/14 06: 32, Rushed into the tunnel. It is about 10 KB / sec ~ 40 KB / sec but the connection is kept maintained.
2009/03/14 06: 39, The rain has stopped.
2009/03/14 06: 41, Passing through Gifu Hashima station, about 50 KB / sec.
2009/03/14 06: 49Arrived Nagoya Station. Walk between 99 KB and 30 KB per second. It is not very stable.

Communication graph for 15 minutes from 6: 2 to 6: 17


Communication graph for 15 minutes from 6:24 to 6:39


From 6:17 to 6:47, 30 minutes communication graph


From here, every 15 minutes, we have issued three kinds, the last 15 minutes, the last 30 minutes and the last one hour.

■ 7 am
2009/03/14 07: 01, Tunnel rush. The connection is kept at 100 KB / sec without interruption.
2009/03/14 07: 03, The second tunnel rush. Although it fell to nearly 0 KB per second at the moment of inrush, it gradually recovered from there and rose to nearly 80 KB per second.
2009/03/14 07: 04As I left the tunnel it began to rain again and it was quite a dense fog state. The speed is maintained at about 100 KB / s.
2009/03/14 07: 05, Tunnel rushing, which is quite short, but at the same moment the rush comes in again the speed drops to 10 KB / sec. But this time I can not connect.
2009/03/14 07: 08Pass through Toyohashi station. Although the speed sharply decreased to 50 KB per second for some reason, it recovered to 100 KB per second in about 1 minute.
2009/03/14 07: 13, Passing through the vicinity of Lake Hamana, the speed is stable and 100 KB / s.

15-minute chart


30-minute chart


1 hour graph


■ 7:15 AM
2009/03/14 07:16, 114 KB / sec, the state that the speed continues to be output very stable.
2009/03/14 07:17, Tenryu River passing, reaching 117 KB / sec.
2009/03/14 07: 19, The speed becomes unstable and only becomes 0 KB for a moment.
2009/03/14 07: 20, Short tunnel, about 60 KB to 70 KB / sec.
2009/03/14 07: 22Pass through Kakegawa station. The station was 80 KB per second, but from there the speed suddenly changed from 10 KB to 20 KB per second. It is stable at about 50 KB per second for about 1 minute.
2009/03/14 07: 23, A fairly short tunnel passage, about 50 KB / sec.
2009/03/14 07: 24, Also tunnel passing fairly short, about 50 KB / sec. Further similar short tunnel passage, this time it rose to 110 KB / s.
2009/03/14 07: 24Finally it starts to enter the long tunnel zone of problem. My ear is hurt due to pressure change. However, unexpectedly the speed starts to fall to about 2 KB / sec at a stroke just after the tunnel starts to rush, but after that the rate has been increased to about 100 KB per second.
2009/03/14 07: 26, Also tunnel. 110 KB / s. Feelingly the speed drops only at the moment of entering the tunnel, but feeling that it can communicate steadily while in the tunnel.

15-minute chart


30-minute chart


1 hour graph


■ 7:30 AM
2009/03/14 07: 30, A medium tunnel rush, but does not slow down and it is 108 KB / s.
2009/03/14 07: 32Passed through Shizuoka station. The speed is 108 KB / s. No speed reduction, extremely stable.
2009/03/14 07: 34, Maintaining 111 KB / sec steadily. Looking out looks like a residential area.
2009/03/14 07: 35Finally the nightmarish tunnel rush. Warm the speed from 30 KB to 40 KB per second.
2009/03/14 07: 38Although it is quite a long tunnel, it keeps steady outputting 80 KB to 90 KB per second, and the connection is absolutely uninterrupted.
2009/03/14 07: 39, Passing through Fuji river, about 30 KB / sec. TCP Monitor Plus is reset. Ugo.
2009/03/14 07: 41, The outside is a dense fog, but the speed is steadily increasing at nearly 113 KB / s.

15-minute chart


30-minute chart


1 hour graph


■ 7:45 AM
2009/03/14 07: 45Rush into the tunnel zone, 50 KB to 90 KB per second. Sometimes it feels 100 KB per second.
2009/03/14 07: 47, Quite a long tunnel. Urouro between 30 KB and 50 KB per second.
2009/03/14 07:48, Still in the tunnel, but the speed to 108 KB / s. I get a speed faster than I expected.
2009/03/14 07: 49Pass through Atami station. About 50 KB / sec. In the immediately following tunnel it fell to 20 KB per second.
2009/03/14 07: 50, Naga tunnel. About 20 KB / s or so.
2009/03/14 07: 51, Also tunnel. It is stable at 115 KB / sec. A level without complain if it gets speed and stabilizes this much.
2009/03/14 07: 53, Tunnel zone. About 90 KB / 100 KB / s.
2009/03/14 07: 56, The tunnel continues intermittently, but 100 KB / s. I did not expect it to be level up to here. From now on I can use the bullet train with confidence.

15-minute chart


30-minute chart


1 hour graph


From here we add a graph for the last three hours so that we can see the whole.

■ 8 am
15-minute chart


30-minute chart


1 hour graph


3 hour graph


■ 8:15 AM
2009/03/14 08: 02, 90 KB ~ 110 KB / s. It is near Shin-Yokohama soon.
2009/03/14 08: 03, The tunnel continues to be undisturbed, but keeps going out near 117 KB / s. After passing through the tunnel, it fell to nearly 10 KB / s. What is this.
2009/03/14 08: 08Arrived at Shin - Yokohama. It is about 113 KB per second.
2009/03/14 08: 12, 111 KB / s will remain stable steadily every second. too amazing.
2009/03/14 08: 19, Arrived at Shinagawa Station. About 110 KB / sec. At this time, 669 MB of files could be downloaded from FTP.
2009/03/14 08: 22, About 50 KB / sec. I arrived in Tokyo soon.
2009/03/14 08: 25, Tokyo station in one minute. 100 KB per second.

15-minute chart


30-minute chart


1 hour graph


3 hour graph


■ 8:26 AM
2009/03/14 08: 26Arrived in Tokyo.

And finally arrived at Tokyo station. Graph for the last 3 hours. Everything from departure to arrival is included.


By the way, I finally succeeded in downloading 706 MB from 6 o'clock to 8:26 pm.

Since it is possible to keep communicating in the other sense sensually, basically it is hard to be troubled. Clearly, it is the level that you do not need to use any of WILLCOM, AU, EMOBILE, NTT DOCOMO. I wonder if this can be understood by looking at the graph above. There was not a person communicating elsewhere in the same vehicle, but it seems that the speed is limited to about 110 KB per second, and even if several people are connected at the same time, unless it is good I wonder if there is no problem. It is quite a good service because it is more comfortable than I thought. As expected, there are things that only appeared with fullness.

The communication record when returning from Tokyo to Shin Osaka will be added to this article as soon as it is completed.

· Continued
I started to use the N 700 series Shinkansen so I tried it immediately ~ Upward and downward simultaneous use speed report edition ~ - GIGAZINE