IF in 2: 75 ohm female BNC for 70 MHz IF signals as found in satellite
uplink scenarios. Second input terminal. The input signal level
should lie in the range -15 dBm to 0 dBm in order to guarantee
a correct level on the upconverted RF out 2 terminal
IF out: 75 ohm female BNC carrying either the IF-1 signal or the IF-2
signal depending on redundancy switch state. The insertion
loss through the relay is just below 1 dB.
RF out 1: 50 ohm SMA female RF L-band output version of the IF-1 input
signal centered at 1024 MHz + IF input signal frequency e.g.:
1094 MHz for 70 MHz IF input signal.
RF out 2: 50 ohm SMA RF L-band output version of the IF-2 input signal
centered at 1024 MHz + IF input signal frequency e.g.: 1094
MHz for a 70 MHz IF input signal.
The button interface is described in the table below
Push button Description
Input A / Primary Pushing this button ensures IF-1 is
switched to the output as well as
changing the operating mode to
"SuperLocal". The button lights up to
indicate the signal path.
Input B / Secondary Pushing this button ensures IF-2 is
switched to the output as well as
changing the operating mode to
"SuperLocal". The button lights up to
indicate the signal path.
Auto Pushing this button toggles the operating
mode of the module between "Auto"
(push button and it becomes lit) and
"Manual" (hold button until no light).
Button light slowly flashing indicates
operating mode "SuperLocal".
The VB273 operates in 3 distinct modes. These are:
• AUTO: The switching between A and B is done automatically based on the
switching criteria defined in the probe GUI. See chapter regarding satelite
redundancy(6.16).
• MANUAL: The switching between A and B is done manually from the GUI or from
PROBE USERS' MANUAL VERSION 5.0
2014 © BRIDGE Technologies Co AS - Bentsebrugata 20 - N-0476 Oslo, Norway - tel: +47 22 38 51 00 -
www.bridgetech.tv
31
To Next Page
Loading...