I commute to work and the guy in front of me put this up. While this was up, he was watching something on this phone and had headphones on. At one moment on phone in the suitcase seemed to turn on, displaying the SAMSUNG Galaxy symbol. Nothing more happened.

Image from preview.redd.it and submitted by this_is_how_i_roll
image showing I commute to work and the guy in front of me put this up. While this was up, he was watching something on this phone and had headphones on. At one moment on phone in the suitcase seemed to turn on, displaying the SAMSUNG Galaxy symbol. Nothing more happened.

SmithTheNinja on November 29th, 2018 at 12:36 UTC »

If I had to guess they're probably recording network reception for a number of different carriers to create a coverage map. Similar to those cars with a bunch of weird antennas, but more portable.

Gorillaz_RWBY on November 29th, 2018 at 13:00 UTC »

I am pretty sure this is someone testing signal coverage on trains. Ive seen mobile phone press journalists use those to test different mobile service providers' coverage

Clay_Pigeon on November 29th, 2018 at 13:20 UTC »

I've used a similar setup for testing cellular coverage. Some of these are commercially available, but many are just hacked together by the company engineers.

Out of curiosity, which rail system is this?