SAF Integra-X, Руководство пользователя

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INTEGRA-X User Manual INTERFACES
SAF Tehnika JSC 115
RSSI/audio port
The RSSI (Received Signal Strength Indicator) port is used to adjust the alignment of the antenna
for best performance (for both rough and fine adjustment); this can be done using a digital
multimeter or headphones connected to the RSSI port. The RSSI port is a 3.5mm socket. The
output of the RSSI port is DC voltage and an audio frequency and varies depending on the received
signal level. Both are linear curves.
Figure 7-8 RSSI/audio port
In order to connect a voltmeter you will require the appropriate RSSI cable (P/N D0ACRS01):
Figure 7-9 RSSI cable
Figure 7-10
shows typical relationship of the received signal level (Rx level) displayed by the
Integra-X vs. the RSSI port output voltage (RSSI – Received Signal Strength Indicator)
Figure 7-11 Audio frequency vs RSSI shows relevance between received signal level (Rx level) and
audio output frequency. RSSI port location in the FODU is shown in Figure 7-8 . The evaluated Rx
level has the error ±2 dB.