EMF Detectors
There are three kinds of instruments which are generally used to
detect electro-magnetic fields (EMF). They are the electric field,
magnetic field, and radio frequency (RF) meters. Most paranormal
researchers prefer the Multi-Field Meters as these are capable of
measuring two to three of these fields simultaneously. They are
designed with a fast reacting needle gauge and at least two
sensitivity scales. Another reason they are favoured is because
they are simple to use. Other meters monitor the combined magnetic
and electric field strength. These are known as Gaussmeters (or
Teslameters). The ELF (Extremely Low Frequency) models are the best
to use for paranormal research. Paranormal researchers also use RF
(Radio Frequency) meters as they monitor microwave and radio
frequencies. RF meters can also help detect hidden sound or spy
equipment. One should note that all gauss meters, electric field
meters, RF/microwave meters, etc. can only measure the strength of
the field where the meter is placed. The meters can be used in two
ways.
They can be placed in a stationary position or used like mobile
probes. Using them like mobile probes means they can be used while
walking around during an investigation. Meter’s can be
distinguished from each other based on the smallest field strength
the meter’s can detect (sensitivity). For instance, a gauss meter
with a sensitivity of 0.1 mG (milligauss) is ten times more
sensitive than a meter that can only detect down to 1.0 mG. While a
more sensitive meter can be used further away from the source of
the field, one should remember that it’s still only measuring the
weaker field at the location of the meter. When looking for a more
sensitive meter you should compare the minimum sensitivity rating
of one meter to another. The effectiveness of a meter and the field
it can detect depends on the strength of the field at the source,
the pattern of radiation from the source, and the rate that the
field decreases with distance (1/d, 1/d², 1/d³, etc.). EMF sources
sometimes have symmetrical field patterns and sometimes they may
not. A single-axis detector is sensitive to the field directly in
front of the probe. It must be rotated during use to find the
proper orientation to the source field being measured. This is to
ensure accurate readings are measured. A three-axis detector is
sensitive all around the probe and is omni directional.
RF DETECTORS
Radio frequency meters measure in the range of 1-4500 MHz (or 4.5
GHz). This a range of the electromagnetic spectrum used for
communications. RF detectors can be used to check for a variety of
devices such as mobile phone activity, concealed bugging devices
and remote cameras amongst others. Sometimes paranormal phenomena
have been associated with the lower range of RF signals as well as
short bursts of high energy microwaves. Microwave energy has also
been detected in association with UFO close encounters. Human cells
generate low RF frequencies although there is no proven scientific
explanation for why it occurs.
RADIATION MONITORS
Radioactive objects sometimes emit a greenish light as well as
white sparks that are visible only in complete darkness. On more
than one occasion these have been responsible for alleged
“hauntings.” However, spontaneous radioactive events have been
associated with genuine anomalous activity of all kinds. Some
researchers have found that fluctuations in background radiation
indicate a disturbance in spirit energy. Radiation is also
associated with UFO close encounters.
TEMPERATURE SENSORS
Cold spots are another manifestation of the depletion of energy by
paranormal events. Cold spots are short-lived and tend to move
about. This means that conventional thermometers are not fast
enough to record the phenomenon. For this reason instant-reading
infrared digital thermometers are used. The laser pointers with
these meters are useful for good aim. All the investigator has to
do is point and shoot to get instant temperature readings of
surfaces 10 to 50 or more feet away. For ambient or background
temperature readings, a common thermometer or thermocouple device
is all that’s needed.
STATIC ELECTRICITY AND IONIZATION DETECTORS
Paranormal activity can ionize the air to produce negatively
charged particles called ions. This is easy to measure with an air
ion counter. Static electricity and ionization emit light when the
source field discharges into the air. High ionization levels
sometimes indicate the presence of radioactivity. A Geiger counter
survey might be indicated in these instances. MOTION
DETECTORS
Motion detectors are a very useful tool for paranormal research.
They can be used to trigger recording equipment. Using invisible
infrared beams or vibration sensors, a motion detector can be used
to remotely detect moving objects, opening doors and windows, and
even the appearance of hot spots.
EVP & LISTENING DEVICES
It is possible to actually listen to EMF energy levels and
patterns. Sometimes this proves a very effective means of
investigation of paranormal events. Although it is less
quantitative, it provides immediate and very personal feedback. If
you are a keen paranormal investigator, you will already have some
knowledge of EVP (Electronic Voice Phenomena). For those who are
not familiar with the topic EVP is the communication with spirits
using recording devices such as tape recorders. This is a very
interesting subject which should not be dismissed. EVP is what you
are looking to find by performing an audio recording during your
investigation. Audio recording can sometimes pick up disembodied
sounds and voices which may be present. Just as still cameras are
capable of detecting things that our human eyes cannot see; audio
recordings can detect things that human ears cannot hear. Audio
recording also enables us to rewind and listen to sounds which we
hear time and time again and can help us explain what we hear. The
technology available today can make the reviewing of recordings
taken during n EVP investigation very easy and very interesting. By
transferring recordings to a personal computer one has the ability
to adjust the speed of the playback and perhaps even reverse the
recording so that it plays backwards. Often slowing down the
recording provides some interesting listening. EVP have been picked
up on many common recording devices such as radios, tape recorders
and televisions. Digital recorders are the best to use for
paranormal research as the information can be uploaded directly
into a personal computer for analysis.
MISCELLANEOUS INSTRUMENTS
A variety of instruments are used to record and enhance data
collected during a paranormal investigation. These instruments
include pocket field viewers, portable oscilloscopes, data loggers
and computer programs. One thing to note, AC and power adapters
that can be plugged into a car will be necessary when using battery
powered meters during lengthy investigations