DEVA Broadcast Radio Explorer II, Maintenance And Operation Instruction Manual

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65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: +359 56 820027, Fax: +359 56 836700
E-mail: office@devabroadcast.com ,Web: www.devabroadcast.com
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Important recommendations when acquisition time is set
Acquisition time defines the time between the examining points. Meaning that if the acquisition
time is set to 10 seconds, the Radio Explorer II will mark a point on the map each 10th second of
the campaign. Having in mind that the device will scan the channels preset after preset, the driving
speed should be carefully considered.
Below is a table with the expected distance between the measurements of a particular
point/frequency, depending on the speed and number of monitored channels, when the device
is used in Logger Mode. Please note that the cited parameters are approximate and depend
on the re-tuning time between the channels, and the overall configuration. As it can be seen
from the table, the time period for two channels is more than two times bigger than the one
needed for 1 channel as time for re-tuning is also added.
In PI campaign there are valid and not valid RF levels and CALL signs that have influence
on the distance between the measurement points, hence approximate distance cannot be
accurately presumed.
Approximate distance between the obtained measurement points of same frequency
depending on the speed and number of channels monitored in Logger mode
Number of
monitored
channels
Acquisition
time
Speed
50km/h
31mph
Speed
90km/h
56mph
Speed
120km/h
75mph
m feet m feet m feet
1
5 seconds 69 226 130 427 173 568
10 seconds 137 449 252 827 335 1099
2
5 seconds 140 459 258 846 341 1119
10 seconds 276 906 508 1667 701 2300
3
5 seconds 202 663 388 1273 508 1667
10 seconds 413 1355 761 2497 1003 3291
4
5 seconds 273 896 509 1670 673 2208
10 seconds 551 1808 1015 3330 1340 4396
5
5 seconds 345 1132 638 2093 842 2762
10 seconds 692 2270 1265 4150 1682 5518
6
5 seconds 412 1352 760 2493 1180 3871
10 seconds 830 2723 1512 4961 2004 6575
7
5 seconds 480 1575 890 2920 1335 4380
10 seconds 964 3163 1765 5791 2340 7677
8
5 seconds 552 1811 1013 3323 1510 4954
10 seconds 1105 3625 2020 6627 2675 8776
9
5 seconds 622 2041 1142 3747 1680 5512
10 seconds 1242 4075 2270 7448 3010 9875
10
5 seconds 692 2270 1270 4167 1847 6060
10 seconds 1395 4577 2535 8317 3342 10965