Users manual
FA845
version 1.5
Envionic
23
3.3 SCAN Frequency bands
The selected band will be shown at the left side of the screen (at position A, see previous
section), like this:
Shown on screen
Meaning
01
Band number
GSM
Band name (GSM 900)
900
↓
EU
Downstream, Europe
Downstream (indicated by down pointing arrow) means, that this is the signal that is sent from
the phone mast to a cell phone. The signal that a cell phone sends to the phone mast is called
upstream, and is shown as an arrow pointing upwards.
EU means, that this is a frequency band used in Europe (in the USA and some other countries,
the band frequencies are slightly different).
In the described software version, pre-programmed bands are:
1 GSM 900 downstream EU
2 GSM 1800 downstream EU
3 UMTS 2100 downstream EU
4 DECT 1880 EU
5 GSM 900 upstream EU
6 GSM 1800 upstream EU
7 UMTS 2100 upstream EU
8 WLAN
You can use button 6 or 3 to select the next or previous frequency band.
You can also define your own list of bands on the micro-SD card (explained in one of the next
sections).
It takes approx. 3 seconds to scan the GSM900 downstream band (with standard settings).
