Minimum distance needed to register on ports?

DeFuNkT

Does anyone know the minimum distance i need to move for it to register on my ports?

Before it gets flooded with daft responses, I'm not asking anything about movement speed, nor do i need to be reminded this game is designed for walking or any other strange responses i see to most posts which offer little useful info.

I have limited time for just walking around freely (job, kids, etc..) and with only 1 or 2 keys unlocking at a time with 2 10km, a few 5km, some 3km it's quite some distance. Being a passenger in car gets me nothing, i don't even get things spawning on the map while in transit. Right now if I don't get any more silver keys I need to do about 50km to unlock all the ports i have. These events lately have been a serious pain because I already have a load of ports to get unlocked before i can get event ones so it pretty much doesn't happen.

My thinking is that my house is roughly 50ft front to back, so if I walk from front door to back door and back again I've covered about 100ft (before you say try it, i have, it's not registering, should it? will 120ft do it? 150ft?...).

I'm about ready to strap my phone and several battery packs to the back of a tortoise and set it off on it's journey....

Lucoire

Here's what I know about this

• It registers change of GPS position.
• GPS-enables smartphones are typically accurate to within 4.9m (16 ft.) radius under open sky. (Source)
• GPS precision tends to become worse when near buildings, bridges or trees and to be outright horrible when within buildings. (Explanation)

Putting all of that information together, you have 2 general options:

• To get the most relyable progress on your Portmanteaus, you'd have to go outside move around in open areas - and move more than 5m. I'd strongly recommend this.
• The other - "random" - option makes use of the "User Range Error" and the inability of the GPS-Satelites to accurately track your phone. But given that that option might be seen as an exploit, I won't explain how to best do it - because it might get you flagged or banned. Play honestly.

DeFuNkT

@Lucoire

I wish you were there to answer every question I ever had about anything because that was about the best answer I've ever had to anything. Thats pretty much hit the nail on the head without countless moronic responses.

Case closed. Thank you very much LUCOIRE.

Osprey1

Unfortunately I can't leave the case closed.

There is a time element missing here, that is the time between GPS measurements.

Let's say I am traveling in a circle, if every point counted I would get credit for the circumference of a circle 2πr. If I only measure location at five points in time, I would get credit for the sides of a square that is inscribed in the circle. If I only measure location at three points in time in my journey around the circle I would get credit for the diameter of the circle (2r) or 3 times less than the whole distance I travelled. Finally if I only measure location at 2 points in time then it will appear that I did not move.

The impact is also felt when walking back and forth in a line, depending on the length of the line some amount to all distance is lost when you turn around at the end of a line.

This was a real situation that occurred in the early days of PokemonGo. People walking in a certain size track around a set of pokestops or back and forth on a line of pokestops were encouraged to wait at a pokestop before heading out in a new direction. I believe they updated tracking so that the phone captured more points even if they weren't passed to the server, more frequent checks of the location does increase battery consumption, but the data can be simplified down.

This was, I assume, a driver in creating adventure sync as a way to use the pedometer type functions of the phone to backstop the location functions reducing battery usage and increasing accuracy.

So, the minimum distance measured will be impacted by how frequently location is sampled which is currently an unknown (as far as I know) and may be impacted by complexities like approximating travel and retroactively correcting.

DrPants

Ride a bike or electric scooter with your screen on. Just don't play while you're moving because that's not safe. Driving a car slow enough to unlock portkeys wouldn't be safe either.