expom_example2: An example dataset as downloaded directly from an ExpoM-RF...

In MarloesEeftens/EMFtools: Helpful tools for research on the epidemiology of electromagnetic fields.

Description

This .csv dataset was downloaded from an ExpoM-RF device.

Usage

data("expom_example2")

Format

A data frame with 3193 observations on the following variable.

Date and Time

Contains the date and time at which the corresponding sample was taken.

Sequence number

Each measurement is labeled with a sequence number. Every time ExpoM - RF is switched on the sequence number starts at 1. If not interrupted by a power cycle, the sequence number counts up to 65535 after which it restarts at 1.

FM Radio

Field strength [V/m] in the 87.5–108 MHz band.

TV

Field strength [V/m] in the 470–790 MHz band.

Mobile 800 MHz Downlink

Field strength [V/m] in the 791–821 MHz band.

Mobile 800 MHz Uplink

Field strength [V/m] in the 832–862 MHz band.

Mobile 900 MHz Uplink

Field strength [V/m] in the 880–915 MHz band.

Mobile 900 MHz Downlink

Field strength [V/m] in the 925–960 MHz band.

Mobile 1.8 GHz Uplink

Field strength [V/m] in the 1710–1785 MHz band.

Mobile 1.8 GHz Downlink

Field strength [V/m] in the 1805–1880 MHz band.

DECT

Field strength [V/m] in the 1880–1900 MHz band.

Mobile 2.1 GHz Uplink

Field strength [V/m] in the 1920–1980 MHz band.

Mobile 2.1 GHz Downlink

Field strength [V/m] in the 2110–2170 MHz band.

ISM 2.4 GHz

Field strength [V/m] in the 2400–2485 MHz band.

Mobile 2.6 GHz Uplink

Field strength [V/m] in the 2500–2570 MHz band.

Mobile 2.6 GHz Downlink

Field strength [V/m] in the 2620–2690 MHz band.

Mobile 3.5 GHz

Field strength [V/m] in the 3400–3600 MHz band.

WiFi 5 GHz

Field strength [V/m] in the 5150–5875 MHz band.

Total

Field strength [V/m] in all 16 bands.

Overload

An exclamation mark (!) in this field signalizes that ExpoM - RF measured a signal exceeding its specified measurement range. The affected sample is likely to be inaccurate due to overload effects and should be discarded. Otherwise this entry is empty.

GPS Fix

0=invalid; 1=2D only (no accurate altitude information) 2=full GPS localization.

GPS Lat

NMEA format: degrees minutes.decimal_minutes.

GPS Lon

NMEA format: degrees minutes.decimal_minutes.

GPS Altitude

Meters above mean sea level. Caution: accuracy is strongly signal dependent.

GPS HDOP

GPS fix quality (lower = better). <2=very good; 2-5=OK; >5=limited accuracy.

GPS

Number of satellites in view; higher numbers mean higher GPS reliability.

Details

Data collected by Jana Soenksen, who paid a visit to the radio & TV broadcast tower North-East of Basel, Switzerland.

References

Website of the ExpoM-RF producer: http://fieldsatwork.ch/index.php?page=downloads. See manual for more information about variables.

Examples

#Write the example .csv to a folder of your choice (please change pathname!):
my_filename1<-"V:/EEH/R_functions/EMFtools/data/expom_example2.csv"
write.table(expom_example2,file=my_filename1,sep="\t",quote=FALSE,row.names=FALSE)
#Import using the import function:
my_expom_file<-import_expom_RF(filename=my_filename1,prefix="EXPOM_",suffix="_Vm")
str(my_expom_file)

MarloesEeftens/EMFtools documentation built on May 10, 2019, 5:16 a.m.