No cell signal test

Augsburg · May 13, 2023

For people with routes that have questionable cell service I'd like to run a test.
•On the MDD push the 3 stacked lines (=) in the top right corner
•D Diagnostic
•B Wireless information

Post a response with
•ADDRESS = ¡DO NOT POST!
•RSSI = ( EXAMPLE -81 )
•SIGNAL = (EXAMPLE 99)
•RADIO = ON

This may be proof that our MDD is non-operational in certain areas .

Unlike the leaders in the Union, I think the way to defeat RRECS is with evidence.

Rt3Sidney · May 13, 2023

What are we looking for? My RSSI drops, but everything else stays pretty much the same. Btw, I was in Augsburg in the eighties.

Dumbassclerksyndrome · May 13, 2023

I believe RSSI is strength of signal. I was confronted with a report of signal strengths, one of which was -255. Literally dead zone

SilverHair · May 13, 2023

Rt3Sidney said:
What are we looking for? My RSSI drops, but everything else stays pretty much the same. Btw, I was in Augsburg in the eighties.

Address seems to be a GPS coordinate. Bunch of numbers separated by 3 periods.

I sat for exactly one minute and recorded my RSSI (whatever that is). It changed 6 times in those 60 seconds. -95, -96, -255, -96, -255, -102

Signal = 99
Radio = ON

But what does it mean??? (Reference to Hitchhiker’s Guide to the Galaxy when the answer “42” was given).

SilverHair · May 13, 2023

Dumbassclerksyndrome said:
I believe RSSI is strength of signal. I was confronted with a report of signal strengths, one of which was -255. Literally dead zone

So at any random moment, I don’t know whether I have a signal or not, because it oscillated all over the place???

Well, actally “oscillated” isn’t the right word because there was no regular pattern to it. Sat on one value for a while, sometimes not long at all, varied.

Dumbassclerksyndrome · May 13, 2023

SilverHair said:
Address seems to be a GPS coordinate. Bunch of numbers separated by 3 periods.

I sat for exactly one minute and recorded my RSSI (whatever that is). It changed 6 times in those 60 seconds. -95, -96, -255, -96, -255, -102

Signal = 99
Radio = ON

But what does it mean??? (Reference to Hitchhiker’s Guide to the Galaxy when the answer “42” was given).

Reply sad face because carriers are now being confronted with thing’s literally out of our control

johnwayne · May 13, 2023

Received signal strength indicator - Wikipedia

en.wikipedia.org

so...0 is perfect signal. and the value only really represents a trigger that tells the scanner when the signal is strong enough to send information. Thats all I get out of it so far.

johnwayne · May 13, 2023

As early as 2000, researchers were able to use RSSI for coarse-grained location estimates.[5] More recent work was able to reproduce these results using more advanced techniques.[6] Nevertheless, RSSI does not always provide measurements that are sufficiently accurate to properly determine the location.[7] However, RSSI still represents the most feasible indicator for localization purposes as it is available in almost all wireless nodes and it does not have any additional hardware requirements.[8]

so this is how they determine location?

Rt3Sidney · May 13, 2023

SilverHair said:
Address seems to be a GPS coordinate. Bunch of numbers separated by 3 periods.

I sat for exactly one minute and recorded my RSSI (whatever that is). It changed 6 times in those 60 seconds. -95, -96, -255, -96, -255, -102

Signal = 99
Radio = ON

But what does it mean??? (Reference to Hitchhiker’s Guide to the Galaxy when the answer “42” was given).

The best mine gets is -80 and that's near town.

Dumbassclerksyndrome · May 13, 2023

Interesting

neciat · May 13, 2023

SilverHair said:
So at any random moment, I don’t know whether I have a signal or not, because it oscillated all over the place???

Well, actally “oscillated” isn’t the right word because there was no regular pattern to it. Sat on one value for a while, sometimes not long at all, varied.

I don't know. " Oscillate (d) " just might be the EXACT word as I do have a saying ; any closed loop system based upon positive feedback is destined to OSCILLATE out of control and spiral into the abyss of failure." This is PERFECT for this " system" .

SilverHair · May 13, 2023

Dumbassclerksyndrome said:
https://www.ruralmailtalk.com/attachments/42630c26-c702-40b2-8e9a-972c8cd5708d-jpeg.10531/

Well, according to those number ranges, the best signal I had was -95 which was still in the worst Signal Quality category of “Poor”.

And that was at a stop with 4 mailboxes that are more out in the open.

Gotrope · May 13, 2023

SilverHair said:
Well, according to those number ranges, the best signal I had was -95 which was still in the worst Signal Quality category of “Poor”. And that was at a stop with 4 mailboxes that are more out in the open.

Make certain you report it as a reason for evaluation dispute.

Crab Rice · May 14, 2023

You are looking at cell tower strength. Nothing more and it is irrelevant to location data which is using GPS satellites.

Crab Rice · May 14, 2023

johnwayne said:
As early as 2000, researchers were able to use RSSI for coarse-grained location estimates.[5] More recent work was able to reproduce these results using more advanced techniques.[6] Nevertheless, RSSI does not always provide measurements that are sufficiently accurate to properly determine the location.[7] However, RSSI still represents the most feasible indicator for localization purposes as it is available in almost all wireless nodes and it does not have any additional hardware requirements.[8]

so this is how they determine location?

No, GPS is used.

Augsburg · May 14, 2023

Crab Rice said:
You are looking at cell tower strength. Nothing more and it is irrelevant to location data which is using GPS satellites.

That's not actually the case.

Augsburg · May 14, 2023

The zebra mdd uses a-gps for location. This means it uses cell towers to triangulate your location in seconds, with accuracy of about 6 feet. The futher away you are the less accurate. The rssi can show us the distance from a tower. When the mdd has to rely on gps alone the accuracy drops to about 20 feet, but it takes minutes to pupulate a decent location, about 5 minutes to get to 6 feet from a cloudless unobstructed point.