Adeunis RF ARF868, User Manual

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ARF868 Radio Modems - User guide version V1.8.1
14 Page of 26
2.3.3 Modalità standard
La tabella riportata di seguito presenta le caratteristiche RF principali dei modem ARF868. Si potranno distinguere due casi di utilizzo:
• Le potenze elevate, fino a 500 mW
• Le potenze < o pari a 25 mW.
2.3.3.1 Utilizzo a 500 mW: distanza massima
La tabella seguente consente agli utenti di configurare il loro modem ARF868 in modo da ottenere una copertura sulle distanze più lunghe
possibile a 500 mW nella banda compresa tra 869,4 e 869,6 MHz.
Parameters Conditions
RF data rate 2.4kbps 9.6kbps 38.4kbps 57.6kbps In bold , data rate by default.
Modification through AT COMMAND ATS254
(see chapter § 5.3)
Available channels Up to 19
:
869,4125 MHz
869,425 MHz
869,4375 MHz
869,450 MHz
869,46255
MHz
869,475 MHz
869,4875 MHz
869,500 MHz
869,5125 MHz
869,525 MHz
869,5375 MHz
869,550 MHz
869,5625 MHz
869,575 MHz
869,5875 MHz
869,600 MHz
869,6125 MHz
869,625 MHz
869,6375 MHz
Up to 9 :
869,425 MHz
869,450 MHz
869,475 MHz
869,500 MHz
869,525 MHz
869,550 MHz
869,575 MHz
869,600 MHz
869,625 MHz
Up to 7 :
869,450 MHz
869,475 MHz
869,500 MHz
869,525
MHz
869,550 MHz
869,575 MHz
869,600 MHz
Up to 3 :
869,475 MHz
869,525
MHz
869,575 MHz
In bold , channel by default.
Modification through AT COMMAND ATS200
(see chapter § 5.3)
RF power up to 27dBm (500mW)
other frequencies available in the sub-band
863-870MHz (see next chapter)
Available RF radia-
ted power
7 levels
+27 dBm
+25 dBm
+23 dBm
+20 dBm
+17 dBm
+14 dBm
+10 dBm In bold , RF power by default.
Modification through AT COMMAND ATS231 (see
chapter §5.3)
Modulation 2 GFSK 4 GFSK
RX sensitivity
ARF868 ULR -122dBm -116dBm -112dBm -110dBm @BER 10e-3
Range ARF868 ULR
TNC version
Up to 20km Up to 14km Up to 10km Up to 10km in open field
RX sensitivity
ARF868 LR
-109dBm -106dBm -100dBm -100dBm @BER 10e-3
Range ARF868 LR
TNC version
Up to 10km Up to 7km Up to 5km Up to 5km in open field
Duty cycle
10% Depending on the use
Spacing 12.5kHz* 25kHz 50kHz 75kHz
* spectral occupancy 2.4kbps being slightly
greater than 12.5KHz, Adeunis RF advocates use
N-2/N+2
Rejection on adja-
cent channel (N-1/
N+1)
46dBc 50dBc 39dBc 39dBc
Alternate channel
rejection (N-2/N+2)
46dBc 50dBc 39dBc 39dBc
Blocking >75dB
@ +/-1 MHZ, +/-2 MHz, +/- 10 MHz
Conducted measurement