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Best Pre-amplifier level for Kingray DW42
Hi all,
I am new to this forum and would appreciate help with using Kingray DW42 (Specs below)
I am using a reverse splitter arrangment to combine:
FTA - typically 35-40dBuV
2 x 2 Ch HDMI>RF modulator set to about 40dBuV
Sky Decoder 80dBuV (fixed) attenuated to 40dBuV
With the UHF gain of the DW42 set to minimum, the output levels on the output of an 8 way splitter (after the amp) are above 75dBbuV but are further split so would fall in range at the TV's (in fact end up around 55dBuV).
My question is , what is the best level to achieve pre-apmlifier based on the specs below, and if it is to be attenuated, would it be prefereable to
attenuate before or after the DW42?
Aprreciate any helf here?
Frequency Range
VHF Low: 40-144 MHz, VHF High: 174 - 300 MHz, UHF: 470 - 860 MHz
Maximum Gain
VHF Low: 35 dB, VHF High: 37 dB, UHF: 40 dB
Gain Control Range
VHF Low: 20 dB, VHF High: 20 dB, UHF: 20 dB
Maximum Output Level
118 dBμV @ - 60 dB IMR (DIN45004B)
Noise Figure
< 6 dB
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