One of our new FM22 work topics is to update ECC/REC/(05)01
to include data collected whilst mobile.
To assist me drafting an initial input document to
discuss at our next meeting, can I ask for your thoughts on what information
needs to be recorded.
My current thought is to have the information in 3
discrete sections:
· Header
– Information that only appears once in the file
· Configuration
– Metadata about the data that follows
· Data
– the wanted parameters that change during every scan/sweep
As a start, I have listed some parameters which I believe
should be recorded.
[Header]
FileType *
e.g. MobileData
CollectedBy
* Registration of vehicle or other identification
FreqStart (MHz) * Lowest frequency
covered
FreqStop (MHz) * Highest frequency
covered
LevelUnits
StartDate
Timezone
Detector
Antenna1 details
Antenna2 details
Antenna3 details
Notes
[Configuration]
Stepsize (Hz)
FilterBandwidth (Hz)
Antenna used
[Data]
Time
Latitude
Longitude
FirstFrequency
Level (repeated for every step size)
In the example below, the receiver is scanning 2 bands
using the following settings:
Band 1 – 87.5-108MHz, 100kHz steps, 50kHz BW using “Band2
Omni”
Band 2 – 160-170MHz, 12.5kHz steps, 10kHz BW using “165MHz
Whip ”
FileType MobileData
CollectedBy GB13ABC
FreqStart 88
FreqStop 170
LevelUnits dBuV
StartDate 2014-04-18
Timezone UTC
Detector Average
Ant1 Band2
Omni
Ant2 165MHz
Whip
Note This
is a sample file of the mobile data exchange format.
[Config1] { Stepsize(Hz),FilterBandwidth(Hz),
Antenna }
100000,50000,Ant1
[Data1] {Time, Latitude, Longitude,Frequency,Level,Frequency,Level,
…}
12:25:30,52.000124,-0.00678,87500000,75,65,30,15,15,15,
etc
12:25:31,52.000136,-0.00637,89800000,56,45,15,15,27,40,
etc
12:25:32,52.000145,-0.00587,92100000,25,25,15,15,15,15,
etc
12:25:33,52.000152,-0.00546,94400000,47,60,45,22,15,30,
etc
…
12:25:42,52.000232,-0.00353,107750000,55,45,46,15,15,29, etc
[Config2]
12500,10000,Ant2
[Data2]
12:25:43,52.000241,-0.00345,160000000,35,29,15,45,15,22,
etc
12:25:44,52.000263,-0.00301,162275000,24,45,15,40,16,54,
etc
12:25:45,52.000276,-0.00278,164550000,15,15,16,15,46,15,
etc
…
12:26:12,52.000873,-0.00165,169600000,43,15,24,15,29,15,
etc
[Config1]
100000,50000,Ant1
[Data1]
12:26:13,52.000897,-0.00161,87500000,76,64,32,16,15,16,
etc
12:26:14,52.000906,-0.00160,88800000,55,43,16,15,26,39,
etc
etc
Please reply with any comments on this suggestion using the message box below.
Ron.