AMX Precis HT, Инструкция по эксплуатации

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Signal Types & Specifications
33 Precis HT Instruction Manual
Signal Types & Specifications
This chapter contains the specifications for the video and audio signals routed by the Precis HT system.
For information on cabling and wiring video and audio connectors, see “Attaching Inputs & Outputs” on
page 22.
Wideband Video Specifications
Standard Audio Specifications
* Total of input gain plus output gain cannot 10 dB.
Wideband Signal Specifications
Parameter Conditions Value
Frequency Response 1 to All ±3 dB to 300 MHz or better
Crosstalk f = 5 MHz <-60 dB
Signal to Noise Ratio (SNR) Vin = 0.7 V, 100 IRE >65 dB
Return Loss f = 5 MHz <-45 dB
Input Level (max.) ±1.5 V
Input Impedance 75 ohms
Output Level (max.) ±1.5 V
Output Impedance 75 ohms
HV Sync Frequency ±3 dB to 50 MHz or better
HV Sync Crosstalk f = 5 MHz -70 dB
HV Sync Input ±5 V
HV Sync Output ±5 V
Connectors RCA or BNC
Standard Audio Signal Specifications
Parameter Conditions Value
Frequency Response f = 20 Hz to 20 kHz <±0.1 dB
THD + Noise f = 20 Hz to 20 kHz,
Vin = -10 dBu to +20 dBu <0.1%
Crosstalk f = 20 Hz to 20 kHz,
Vin = +14 dBu <-110 dB
Signal to Noise Ratio (SNR) f = 20 Hz to 20 kHz,
Vin = +10 dBu >80 dB
Input Level (max.) Balanced +27 dBu
Input Impedance 18 kohms
Input Gain Adjustment Range Control panel or serial control adjustment +10 dB to -10 dB
Output Level (max.) Balanced +27 dBu
Output Impedance 50 ohms
Output Volume Control
Adjustment Range (digital)* Control panel or serial control adjustment +10 dB to -70 dB (mute)
Type Balanced or unbalanced
Connectors Pluggable 5-position
terminal block