4
Chapter 2 - Technical Data
024 V1
DOWNSTREAM INPUT
Level (nominal)
per TV channel <= 120 dBµV
Transmission Loss
DSIN → RF
OUT
< 1.0 dB (up to 868 MHz)
< 1.1 dB (up to 1002 MHz)
< 1.2 dB (up to 1218 MHz)
Return Loss
DS
IN
active > 12 dB (up to 868 MHz)
> 12 dB (up to 1002 MHz)
> 12 dB (up to 1218 MHz)
Isolation
DS
IN
inactive →
RF
OUT
> 75 dB (up to 204 MHz)
> 60 dB (up to 868 MHz)
> 56 dB (up to 1002 MHz)
> 52 dB (up to 1218 MHz)
RF Sum Power
US
IN,i
< 500 mW
External Voltage
< 70 V
eff
(DC – 50 Hz)
RF OUTPUT
Return Loss
> 12 dB (US
IN,i
active)
> 12 dB (DS
IN
active)
MIXER
Mixing of the signalization of the field units VAROS 107 in UMS measurement mode
Dual-Conversion Architecture
Input Frequency
5 – 65 MHz
Intermediate Frequency (IF)
433.92 MHz
Target Frequency
4.5 MHz
Mixer Bandwidth
-3 dB 120 kHz
MISCELLANEOUS
User Display
26 x LED red Power; US
IN,1
– US
IN,24
; DS
IN
