Transcript
UC/V/DAB/LB6-5 VHF BIII DAB COMBINER
FEATURES •
VHF BIII DAB double bridge channel combiner
• • •
5 kW NB Input power DAB/T-DMB applications 6 Pole elliptical response / 200 mm
•
suitable for adjacent block combination
SPECIFICATIONS FREQUENCY RANGE
174 ÷ 240 MHz
BANDWITH
1.54 MHz
TEMPERATURE STABILITY
≤ 1 kHz/K
OPERATING TEMPERATURE
-10 to + 50°C
OVER TEMPERATURE *
30K at 5 kW (NB)
WEIGHT (approx)
165 Kg INPUTS / OUTPUT DTV (ATV) POWER *
•
CONNECTORS
NB WB OUT D
E
NB
E
WB
OUT
5kW (7.5kW) 20kW (30kW) 20kW (30kW)
* referred to DAB block 12D, C.M.1 standard, recommended: [AmbientTemp. + OverTemp.] ≤60°C • A=Nf B=7/16f C= 7/8”unfl D=1-5/8”unfl E=3-1/8”unfl F=4-1/2”unfl G=6-1/8”unfl H=RL-120
ELECTRICAL DATA NB INSERTION LOSS (Typical)** WB INSERTION LOSS
SELECTIVITY
RETURN LOSS
≤ 0.65 dB at C.F.
DAB C.M.2
995
DAB C.M.1
≤ 0.65 dB at C.F.
≤ 1.55 dB at C.F. ±0.77 MHz
≤ 1.50 dB at C.F. ±0.77 MHz
≤ 0.05 dB
≤ 0.05 dB
≥ 15 dB at C.F. ± 0.97 MHz
≥ 10 dB at C.F. ± 0.97 MHz
≥ 45 dB at C.F. ± 1.75 MHz
≥ 40 dB at C.F. ± 1.75 MHz
≥ 45 dB at C.F. ± 2.2 MHz
≥ 40 dB at C.F. ± 2.2 MHz
≥ 45 dB at C.F. ± 3 MHz
≥ 40 dB at C.F. ± 3 MHz
NB ≥ 26 dB
NB ≥ 26 dB
WB ≥ 26 dB on specified channel or
WB ≥ 26 dB on specified channel or
WB ≥ 23 dB
WB ≥ 23 dB
DE-COUPLING
≥ 30 dB
≥ 30 dB
GROUP DELAY VARIATION
≤ 950 ns (Typical)
≤ 800 ns (Typical)
** A tolerance of 0.05dB could be applied at stated value on the basis of operating channel
Specifications are subject to change without prior notice
WB INPUT
OUTPUT
485
TYPICAL TUNING
NB INPUT 1960
VHF DAB COMBINERS
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