Hitachi E-Compact Medium Power Series Operation Manual page 61

Uhf digital tv transmitters
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A – FWD Sample
B – FWD Sample
C – REF Sample
D – FWD Sample
Samples Return Loss
Insulation between RF OUT And
FWD Samples A, B and D
Insulation between RF IN And REF
Sample C
Check on the Sample output connectors labels the coupling curve for the corresponding
frequency of the equipment.
Use for Non-Linear Correction
Forward Power Sample
Connection: N
Coupling: -52dB (MAX); -61dB (MIN)
Impedance: 50Ω
To monitor Reflected Power Output.
Reflected Power Sample
Connection: N
Coupling: -52dB (MAX); -61dB (MIN)
Impedance: 50Ω
To monitor Forward Power Output.
Forward Power Sample
Connection: N
Coupling: -52dB (MAX); -61dB (MIN)
Impedance: 50Ω
-28dB (TYPICAL); -27dB (MIN)
-30dB (TYPICAL); -27dB (MIN)
-30dB (TYPICAL); -27dB (MIN
Label Coupling Curve
E-Compact Medium Power
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