Telkom Telmor WWK-982, User Manual, Page: 23 / 24

23
11. Technical Specification
TYPE WWK-982
Inputs
BI / FM VHF UHF1 UHF2 UHF3 UHF4
Frequency range MHz 47-108 174-230 470-862 470-862
Possible combinations of S1-S4 switches
for UHF1-UHF3 inputs
/ / /
2 3 3
/
2 5 1
2 6 0
5 0 3
7 0 1
8 0 0
Gain dB 26 ±2 45 ±2 44 ±3 30 ±3
Gain regulation dB 20 ±2 20 ±2 20 ±2 (for each filter) 20 ±2
Gain regulation after channel paths summing dB -- 20 ±2 (for signal sum) --
Channel path selectivity dB -- -- 22 ±20MHz --
Noise coefficient dB 9 4 9 17
Max input level dBuV 90 80 80 80
Max output level
1)
dBuV 114 114
Selectivity for f=f
p
±16MHz dB -- 14 --
Return loss dB 10 8 8
Programmable filter band / -- 1…6 x channels (8…48MHz) --
Characteristics irregularity – filter width for 1
TV channel (8MHz)
dB -- Max. 3 --
Characteristics irregularity – filter width for 2..6
TV channel (8..48MHz)
dB -- Max. 6 --
Test Point dB -20 ±2
Impedance input / output 75 / 75
OTHERS
Preamplifier’s power supply V DC / mA -- 0-12-24 / 50 --
Preamplifier’s closed circuit indicator / -- yes, LED diode – red color --
Temperature work range
K (
°
C)
-5….+50
Power supply V AC / Hz 230 / 50-60
Power consumption VA 20