ACS *
IMRR
BD
Modulation
FEC
Code
Rate
Symbol
Rate
Raw Bit
Rate
BER 10
-2
BER 10
-3
BER 10
-6
3dB
degrad.
12dB
degrad.
3dB
degrad.
3dB
degrad.
3dB
degrad.
[-]
[-]
[kBaud]
[kbit/s] EN 300 113 EN 302 561 FCC part 90
[dBm]
[dBm]
[dBm]
[dB]
[dB]
[dB]
[dB]
[dB]
2CPFSK
0,75
10,42
7,81
Comply
Comply LBT
Comply
-118
-115
-111
-7
-4
61
74
91
2CPFSK
1,00
10,42
10,42
Comply
Comply LBT
Comply
-117
-114
-110
-8
-5
60
73
89
4CPFSK
0,75
10,42
15,63
Comply
Comply LBT
Comply
-115
-112
-107
-12
-9
57
71
86
4CPFSK
1,00
10,42
20,83
Comply
Comply LBT
Comply
-113
-110
-104
-13
-10
55
70
84
ACS *
IMRR
BD
Modulation
FEC
Code
Rate
Symbol
Rate
Raw Bit
Rate
BER 10
-2
BER 10
-3
BER 10
-6
3dB
degrad.
12dB
degrad.
3dB
degrad.
3dB
degrad.
3dB
degrad.
[-]
[-]
[kBaud]
[kbit/s] EN 300 113 EN 302 561 FCC part 90
[dBm]
[dBm]
[dBm]
[dB]
[dB]
[dB]
[dB]
[dB]
2CPFSK
0,75
10,42
7,81
Comply
Comply LBT
Comply
-119
-117
-112
-6
-3
61
75
92
2CPFSK
1,00
10,42
10,42
Comply
Comply LBT
Comply
-118
-116
-111
-7
-4
60
74
90
4CPFSK
0,75
10,42
15,63
Comply
Comply LBT
Comply
-116
-113
-108
-11
-8
57
72
87
4CPFSK
1,00
10,42
20,83
Comply
Comply LBT
Comply
-114
-111
-105
-12
-9
55
71
86
ACS *
IMRR
BD
Modulation
FEC
Code
Rate
Symbol
Rate
Raw Bit
Rate
BER 10
-2
BER 10
-3
BER 10
-6
3dB
degrad.
12dB
degrad.
3dB
degrad.
3dB
degrad.
3dB
degrad.
[-]
[-]
[kBaud]
[kbit/s] EN 300 113 EN 302 561 FCC part 90
[dBm]
[dBm]
[dBm]
[dB]
[dB]
[dB]
[dB]
[dB]
DPSK
0,75
17,36
13,02
Comply
Comply LBT
Comply
-115
-113
-108
-11
-7
58
74
85
DPSK
1
17,36
17,36
Comply
Comply LBT
Comply
-114
-112
-107
-12
-9
57
72
84
p
/4-DQPSK
0,75
17,36
26,04
Comply
Comply LBT
Comply
-114
-111
-107
-12
-9
56
72
83
p
/4-DQPSK
1,00
17,36
34,72
Comply
Comply LBT
Comply
-112
-109
-105
-13
-10
54
70
81
D8PSK
0,75
17,36
39,06
Comply
Comply LBT
Comply
-108
-105
-99
-16
-13
50
67
81
D8PSK
1,00
17,36
52,08
Comply
Comply LBT
Comply
-106
-103
-96
-17
-14
48
65
79
16DEQAM
0,75
17,36
52,08
Comply
Comply LBT
Comply
-106
-103
-96
-20
-17
48
64
79
16DEQAM
1,00
17,36
69,44
Comply
Comply LBT
Comply
-104
-101
-94
-22
-19
46
62
77
ACS *
IMRR
BD
Modulation
FEC
Code
Rate
Symbol
Rate
Raw Bit
Rate
BER 10
-2
BER 10
-3
BER 10
-6
3dB
degrad.
12dB
degrad.
3dB
degrad.
3dB
degrad.
3dB
degrad.
[-]
[-]
[kBaud]
[kbit/s] EN 300 113 EN 302 561 FCC part 90
[dBm]
[dBm]
[dBm]
[dB]
[dB]
[dB]
[dB]
[dB]
DPSK
0,75
20,83
15,6225
Comply
Comply
Comply
-114
-112
-107
-11
-7
57
72
83
DPSK
1
20,83
20,83
Comply
Comply
Comply
-113
-111
-106
-12
-9
56
71
82
p
/4-DQPSK
0,75
20,83
31,25
Comply
Comply
Comply
-113
-110
-106
-12
-9
55
71
82
p
/4-DQPSK
1,00
20,83
41,66
Comply
Comply
Comply
-111
-108
-104
-13
-10
53
69
80
D8PSK
0,75
20,83
46,87
Comply
Comply
Comply
-106
-103
-98
-16
-13
49
66
79
D8PSK
1,00
20,83
62,49
Comply
Comply
Comply
-104
-101
-95
-17
-14
47
64
77
16DEQAM
0,75
20,83
62,49
Comply
Comply
Comply
-104
-101
-95
-20
-17
47
63
77
16DEQAM
1,00
20,83
83,32
Comply
Comply
Comply
-102
-99
-93
-22
-19
45
61
75
ACS
– Adjacent channel selectivity
IMRR
– Intermodulation response rejection
BD
– Blocking or desensivitation
ACS
– Adjacent channel selectivity
IMRR
– Intermodulation response rejection
BD
– Blocking or desensivitation
ACS
– Adjacent channel selectivity
IMRR
– Intermodulation response rejection
BD
– Blocking or desensivitation
ACS
– Adjacent channel selectivity
IMRR
– Intermodulation response rejection
BD
– Blocking or desensivitation
Linear modulation | Symbol rate 17.36 kBaud || CE(LBT)+FCC
Sensitivity
Co-channel
rejection
Classification
Sensitivity
Standard
Classification
Channel spacing 25 kHz
Exponential modulation | Symbol rate 10.42 kBaud || FCC
Channel spacing 25 kHz
Standard
Exponential modulation | Symbol rate 10.42 kBaud || CE + FCC
Channel spacing 25 kHz
Co-channel
rejection
Co-channel
rejection
Sensitivity
Co-channel
rejection
Channel spacing 25 kHz
Classification
Standard
Standard
Sensitivity
All values are guarenteed for temperatures from -25 to +55 °C (-13 to +131 °F) and for all frequency channels
Linear modulation | Symbol rate 20.83 kBaud || CE+FCC
FCC rules allow a higher value ot the unwanted adjacent power to be permitted. Hence a frequency deviation in CPFSK mode is increased to get slightly better values of the
Ripex receiver sensitivity (and overall communication efficiency).
Classification
All values are guarenteed for temperatures from -25 to +55 °C (-13 to +131 °F) and for all frequency channels
* roofing filter (anti-aliasing) 50 kHz BW-3 dB
LBT – Listen Before Transmitt
Note: How to understand basic radio parameters of a radio modem
The very first parameter which is often required to be taken into consideration is the receiver sensitivity. Each of those interested in the wireless data
transmission probably knows what this parameter means, but we should see it simultaneously in its relation to other receiver parameters, especially the
blocking and desensitization and the Intermodulation response rejection. Today’s wireless communication arena tends to be overcrowded and a modern radio
modem, which is demanded to compete, should have good dynamic range that is defined by the parameters listed above. The receiver of a radio modem,
which is designed purely for optimum sensitivity, will not be able to give proper performance. However, the main receiver parameters determining its dynamic
range go against each other and a clear trade-off between the sensitivity and the blocking (or the Intermodulation response rejection) is therefore an essential
assumption. Then, from the viewpoint of a logical comparison, the consequence of better receiver sensitivity can be easily seen - a lower power level of the
blocking and degradation parameters generally.
47
© RACOM s.r.o. – RipEX Radio modem & Router
Product
