AT-4/868 UHF
FAAC S.p.A. Via Calari, 10 – 40069 – Zola Predosa (BO) - Italy
Page 22 of 25
7
UHF FREQUENCIES
7.1
RADIO REGULATION
The AT-4/868
reader operates on the 860 – 960 MHz band. Regulations in this
band are not standardized world-wide. Generally the regulations can be divided
into several regions.
Per region a specific frequency band is available. This frequency band is divided
into frequency channels. If local radio regulations require frequency hopping
(FHSS), then the AT-4/868
reader automatically selects and uses the available
channels.
Region
Technique
Frequency (Mhz)
Channels
Europe
865.6 – 867.6
4
Americas
FHSS
902.0 – 928.0
52
Brazil
FHSS
915.0 – 928.0
43
China
FHSS
920.5 – 924.5
20
Australia
FHSS
920.0 – 926.0
12
Israel
915.0 – 917.0
4
Japan
LBT
952.0 – 954.0
-
Korea
FHSS
917.0 – 920.8
-
Table 5: region specific parameters
7.2
FREQUENCY CHANNEL SELECTION
If no frequency hopping is required, you should select an available frequency
channel manually. This can be realized as described below. Select an available
frequency channel to achieve the best performance and to avoid interference
from other readers or equipment.
Press once the UP or DOWN key and the display will show the value indicating the
currently selected frequency. Refer to the following table to check the real
operating frequency.
When the display is active, press the UP key to select a higher frequency. In the
same way, press the DOWN key to select a lower frequency.
The display switches automatically off after 5 seconds.
DISPLAY
Fig. 20: frequency setting
