Yes, I agree - I did this exact same research last night, and found out what a Cal/Amp device is and how it works.
What I was wondering - and maybe I didn't state my question clearly - is can a Bobcat Skid Steer s590 be tracked without the SIM card inserted into the CalAmp device?
Thanks for clarifying
@crhedBngr.
Cal/Amp specifically states that they utilize
cellular technology to monitor and provide data. IMO, that statement tells me that the service provider may factor into the answer to OP's question.
From the AA, we know that BM was using VerizonConnect service.
Also, Bobcat did an upgrade in 2019 when it launched Machine IQ Wireless so the information available today for reference may not be applicable to BM's 2018 OEM asset tracker device by Cal/Amp.
In the tech world where obsoletion seems to happen overnight, we should probably consider Verizon's own migration to a different technology where the old (CDMA) does not require a SIM and the new (GSM) should require a SIM, and where removing the SIM card from the device would probably disable the GPS service.
A few years ago when I had Verizon service where they used CDMA, there was no (removable) SIM required for service. According to Colorado's KKTV Verizon is still migrating from CDMA, making a move to 5G, but not ending service/support for CDMA until December 31, 2022.
By converting to GSM (Global System for Mobile), Verizon service should require a SIM for service. However, if the 2018 OEM Cal/Amp device is married to Verizon, there's always the chance that the hardware is still using CDMA where the tracker might work without the SIM. If BM upgraded his hardware after 2018 and confirmed the new device also migrated to GSM Verizon, then IMO, removing the SIM would probably disable the tracker.
From VerizonConnect's site:
What is a GPS tracker?
A GPS tracker, or black box, is a small piece of hardware, sometimes smaller than a cellphone. It typically includes a slot for a SIM card and a plug, normally OBD-II, to connect it to a vehicle.
A GPS tracker receives a GPS signal and sends location information, along with other vehicle data, back to a fleet management system via cellular 3G, 4G LTE,
CDMA or satellite networks. Using your vehicle tracking system, you can then
monitor your fleet in near real time.
OEM (factory-fitted) devices
These devices can be installed as standard or as an optional extra by the original equipment manufacturer (OEM) in new vehicles (organized by the dealer).
Verizon Connect offers OEM solutions for
Ford,
GM,
Hino,
John Deere,
Mack,
Ram and
Volvo trucks and equipment.
Aftermarket GPS devices
Normally installed by a technician, hard-wired vehicle GPS trackers are connected to a vehicle’s wiring harness in a hidden location to reduce tampering. Aftermarket devices are preferred when adding features like power takeoff (PTO) monitoring,
driver monitoring and
fleet dashcams to your
GPS fleet tracking solution.
How does the server identify each different GPS tracker?
Each GPS tracking device has a unique code, known as an International Mobile Equipment Identity
(IMEI) number. This code allows the GPS tracking software to match the GPS tracker in the tracked vehicle to the moving marker you see on the screen.
https://www.verizonconnect.com/features/gps-tracking-devices/
ETA:
I also did some experimenting with an activated GSM SIM and based on my results, I don't believe that BM could switch his bobcat SIM card even with another bobcat.
Since the primary purpose of Bobcat's Cal/Amp device is Asset tracker/theft protection, I believe BM's OEM Cal/Amp device is locked and would reject another SIM with a warning that the SIM is not provisioned. It follows that the device IMEI number is paired with the SIM, and changing the SIM would most likely require 3rd party intervention from Verizon. JMO
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