4RF Limited SRN0400025A 사용자 설명서
Specifications | 221
Aprisa SR User Manual
Transmitter
Transmit Power output
0.01 to 5.0 W (+10 to +37 dBm, in 1 dB steps)
Transient adjacent channel power
< - 50 dBc
Spurious emissions
< - 37 dBm
Attack time
< 1.5 ms
Release time
< 1.5 ms
Data turnaround time
< 10 ms
Frequency stability
± 1 ppm
Frequency aging
< 1 ppm / annum
Synthesizer lock time
< 1.5 ms (5 MHz step)
12.5 kHz
25 kHz
Adjacent channel power
< - 60 dBc
< - 55 dBc
Note: The Aprisa SR transmitter contains power amplifier protection which allows the antenna to be
disconnected from the antenna port without product damage.
disconnected from the antenna port without product damage.
Receiver
12.5 kHz
25 kHz
Receiver sensitivity
BER < 10
-2
–117 dBm
–114 dBm
BER < 10
-3
–114 dBm
–111 dBm
BER < 10
-6
–110 dBm
–107 dBm
Adjacent channel selectivity
> 60 dB
> 45 dB
Co-channel rejection
> –12 dB
Intermodulation response
rejection
> 70 dB
Blocking or desensitization
> 90 dB
Spurious response rejection
> 75 dB