Phoenix G2 IDU User Manual OVERVIEW
SAF Tehnika JSC
31
Twisted polarization flange
VHP ODU features twisted polarization flange and resulting signal polarization is determined by
interface on antenna/OMT. To change signal polarization, only the antenna interface should be
rotated, as radio always remains in vertical position.
RSSI port
RSSI (Received Signal Strength Indicator) port is used to adjust the alignment of antenna for
best performance (for both rough and fine adjustment); this can be done using digital
multimeter which is connected to the RSSI port. The output of the RSSI port is DC voltage and
varies depending on received signal level.
The following chart and table shows typical relationship of the received signal level (Rx level)
displayed by Phoenix G2 vs. RSSI port output voltage. The evaluated Rx level has the error +/-2
dB.
Figure 1.37
Typical RSSI=f(RSL) chart
N-type connector
N-type Female connector for ODU interconnection to IDU with coaxial cable
Power LED
Indicates if the ODU is powered ON
Grounding screw
Grounding screws should be interconnected with grounding cable and connected to ground
circuit
IRFU with built-in diplexer
Phoenix G2 IRFU with built-in diplexer has following interfaces
: