EMF Meters and GPS Mapping
EMF Meters and GPS Mapping Syncing Capabilities
RF Radiation Power Density Meter Example
As described in an earlier blog, I love testing new technologies and to further developing the capabilities of our company. After the apparently much appreciated blog showing our capabilities of tying a Gaussmeter in with a GPS and dropping the data into Google Earth to display a 60Hz magnetic field profile of a path around the Bay Area, a few people had asked me to produce one for RF Radiation Power Density.
On July 28th, my schedule called for fairly straight forward driving that day allowed for an interesting cross section of the Bay Area.
The Gigahertz Solutions HF-59B RF Radiation Power Density Meter does not do datalogging by itself. To datalog the RF meter’s output, the RF meter needs to be tied in with a Gigahertz Solutions NFA1000 Gaussmeter to use its datalogging functionality or another datalogging system that will take the 0-1V or 0-2V (selectable) output of the RF meter.
Dropping the RF Meter’s datalog into a GPS syncing program and establishing the RF radiation power density levels as an elevation, allows us to see that the RF Radiation Power Density levels along Park Blvd in Oakland, California. The HF-59B’s range of frequency (27MHz to 3GHz) covers cellphone communications, radar and 2.4GHz WiFi networking, however outdoors like this the major spikes are going to be typically due to cellphone antennae and radar.
Starting at the left (the photo above is looking at the area in a southward fashion, so left = East), the three photos below are cell antennae that are in the lower section of Montclair (Moraga Ave) along Highway 13 and turning onto Park Blvd. These 3 are the main sources of RF radiation exposure in area #1.
Area #2 did not show any easily apparent cell antennae, however visually surveying area #2 showed a church in the area. Cell phone carriers are known to rent space on apartments and other high locations so that their cell antennae coverage is maximized. One guess what is very tall and has an interior space for mounting cell antennae, for a facility that is frequently looking for donations. Yes, church steeples also well known for being a common place for cell phone carriers to rent space for maximizing cell phone coverage.
For Area #3 as well, did not show any easily apparent cell antennae, however visually surveying area #3 showed a church in the area there too. Church steeples also well known for being a common place for cell phone carriers to rent space for maximizing cell phone coverage.
Typically clients do not ask us to map out huge routes like this. Using these and other meters we are capable of mapping out perimeters and cross-sections of large properties of low-frequency Electric and Magnetic Fields and Radio Frequency power densities 27 MHz to 10 GHz.
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