From a computer engineer's perspective...these phones being handheld computers as well as phones have all of the necessary hardware to support such a
device.
If one looks at the workings of a digital voice recorder for example which is used to record Electronic Voice Phenomenon.
The device is really only a microphone that writes the signals after first digitizing the signals to memory.
Not all too complex....the software would go into a record mode waiting for a signal digitize the signal and cache it to memory.
The same could be said for an EMF detector. The antenna could be used to measure signals within a certain range.
The phones work this way in their normal operation as well if you think about it..
Similar to how one's phone might display the signal strength bars is signal strength to the nearest cell tower.
The same sensors could be used to measure weaker signals such as those produced by the paranormal.
These modern cell phones have all of this hardware and software interfaces making writing an application that utilizes this hardware a real
possibility.
I went to their site to read up on what they are doing and if they mention making "Chatbot API" calls which would possibly explain the sourcing of
words but not the radar or radio frequency signals themself.
Interesting....
Ghost Radar is a portable application designed to detect paranormal activity. Currently supported portable devices include the iPhone, iPod touch,
iPad, BlackBerry and Android devices. Ghost Radar attempts to detect paranormal activity by using various sensors on the device on which it is
running. Like traditional paranormal detecting equipment Ghost Radar employs sensors that measure electromagnetic fields, vibrations, and sounds.
However, traditional paranormal equipment can be easily fooled when simple mundane bursts of normal electromagnetic fields, vibrations and sounds
occur. Ghost Radar sets itself apart by analyzing the readings from sensors giving indications only when interesting patterns in the readings have
been made.
In the engineering field we always Verify and Validate first....so one might try this app in conjunction with some other device ....or in my case , my
Dogs are very good receivers of paranormal energy's presence...
But....the good thing about this is that it's only a receiver and not a transmitter thus the interactions acquired via an Ouija wouldn't
exist....it's just a receiver pointing out the presence of spirit energy which exists in the infrared frequency spectrum.
Read some of the stories on their site as well as how the interface functions...as well as some of the customer testimony ....they are very
interesting to say the least.
spudpickles.com...
Peace