O/T: Im writing a book. There needs to be a "marker" on a subject. GPS?

[JRouche]

How small can a GPS unit be? Thinner is better. Thanks. JR

[10KPete]

How far away do you want to read it?

Pete

[JRouche]

How far away do you want to read it?

Pete

Standard three feet or one meter. JR

[Hawkeye]

https://www.robotshop.com/en/sfe-venus-gps-w-sma-connector.html#TogetherProducts

[JRouche]

How far away do you want to read it?

Pete

I am assuming you mean its definition right? JR

[danlb]

There are single chip GPS implementations. The size is then dependent on the battery and whatever radio is transmitting it's location.

I have a Samsung Galaxy Gear S that has cellular radio and GPS built in. It supports applications that can do things like turn on the GPS periodically and send the location via text or TCPIP.

The watch is 40mm wide, 60mm tall and 10mm thick. Will run 38 hours with cell phone and GPS turned on.


Dan

[JRouche]

https://www.robotshop.com/en/sfe-ven...getherProducts

SMA connector is a lil large. JR

Power and antenna...

[10KPete]

The battery size is going to be the limiter, I think. Antenna are small, flexible PWA is avaialble. Interesting....

Pete

[JRouche]

Samsung Galaxy Gear S that has cellular radio and GPS built in. It supports applications that can do things like turn on the GPS periodically and send the location via text or TCPIP.

Dan

Really? How old did you get over night?! Our phones have had advanced GPS frome day one after the cold war ended.

All the GPS military birds in the air became open source.

I would not be surprised to see multiple GPS receivers in a phone.

Look at at the accelerometers we have in the phones now! JR

[danlb]

The Gear S is a watch. The dimensions I gave include the battery.

It would be quite believable for a story where the character was not building his own or buying or professional tracker.

Dan

[Noitoen]

Now a days there are some smart tags that pins it's location using Bluetooth and the gps of other nearby equipmemt.

https://www.amazon.com/DOTT-Smart-Dog-Tag-Water-resistant/dp/B076BJRMZ4

[JRouche]

The Gear S is a watch. The dimensions I gave include the battery.

It would be quite believable for a story where the character was not building his own or buying or professional tracker.

Dan

Solly!! I forgot some of you silicone valley residents get the newest and best tech.

I will admit, Im jealous. I like tech.

[JRouche]

It would be quite believable for a story where the character was not building his own or buying or professional tracker.

Dan

Close. For me its is a growing character and they do not realize the full extent...

[danlb]

Solly!! I forgot some of you silicone valley residents get the newest and best tech.

I will admit, Im jealous. I like tech.

Yeah, it's nice. If I forget my cell phone at home I don't sweat it. The watch will act as a phone all by itself and the cell phone automatically transfers unanswered incoming calls to the watch if it's out of bluetooth range. If it's within BT range the phone can act as a speakerphone. Quite a package for something that fits on your wrist.

I can see a storyline where the protagonist pops the watch itself out of the band and drops the matchbook sized watch in someone's pocket, truck bed, behind a car seat, etc.

Dan

[JRouche]

Yeah, it's nice. If I forget my cell phone at home I don't sweat it. The watch will act as a phone all by itself and the cell phone automatically transfers unanswered incoming calls to the watch if it's out of bluetooth range. If it's within BT range the phone can act as a speakerphone. Quite a package for something that fits on your wrist.

I can see a storyline where the protagonist pops the watch itself out of the band and drops the matchbook sized watch in someone's pocket, truck bed, behind a car seat, etc.

Dan

Wow! You have a lot of sfuff going on there. And I still like it..

Mine is much more simple.

I just need a marker that will ping to any location. GPS seemed the best. Needs to be 2-3mm thick. JR