Datasheet

Carrier Class signal-processing
116
U 901, VZN 8
Active combining network, 19-inch rack & trims installation version
for extremely low-noise and low-distortion combining of up to 8 base units
gain matching can be effected individually either for each input or all inputs by means of
fi xed attenuation pads
Pads short see page 154
preemphase adjustable
testpoint (-20 dB, directional coupler) for measuring purposes
U 901 and VZN 8 can receive the operating voltage either directly via the RF inputs
(remote feeding via V 16) or via an external power supply
Type U 901 VZN 8
Order number 380 190 380 191
EAN-code 4026187651244 4026187651381
Impedance [Ω] 75
Frequency range [MHz] 47 - 862
Attenuation distortion
[dB]
≥ 1, full range
≥ 0,2, in 8 MHz channel
Gain [dB] 0 - 7 pluggable in 0,5 steps by attenuation pads (short)
Preemphase [dB] 0 - 15
Intermodulation distance
EN 50083-3
@ 81 dBµW (100 dBµV)
[dB]
[dB]
3.0. ≥ 92
2.0. ≥ 79
Return loss
Inputs-Outputs
[dB] ≥ 16
Isolation inputs [dB] typ. ≥ 20, minimum 18
Testpoint [dB] - 20 ± 1 directional coupler
Remote powering [V~] 12 - 19 via output 1 and 8 or external connector
Power consumption [W] 12
Ambient temperature [°C] 0…+50