MIRAGE MK III - Broadcast Audio Processor
AEV Broadcast Srl via della Tecnica 33, 40050 Argelato Bologna ITALY
www.aev.eu
[email protected]
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AEV
MIRAGE
Broadcast Audio Processor 3-band
Страница 1: ...MIRAGE MK III Broadcast Audio Processor AEV Broadcast Srl via della Tecnica 33 40050 Argelato Bologna ITALY www aev eu info aev eu 1 AEV MIRAGE Broadcast Audio Processor 3 band ...
Страница 2: ...al package call us for a new one If you ship the equipment in a different packing container take care to provide a double package by interposing padding material between the two containers in order to fully protect the equipment during shipment The package should be marked FRAGILE in red SAFETY PRECAUTIONS IMPORTANT Carefully read this paragraph as it contains important instructions concerning ope...
Страница 3: ... the power supply itself The fuses must be replaced by qualified and authorised persons It is advisable to call your nearest dealer Call your dealer for any repairs and be certain original spare parts are used Failure to observe this rule may adversely affect the safety level of your equipment The equipment is to be connected to the mains supply and provided with adequate and efficient earth condu...
Страница 4: ...reshold 8 Input Level 8 Output Level 8 Pre Emphasis and De Emphasis 8 Encoder Adjastement 8 Configuration and in out connections 9 Configurations 9 Connections 9 Inputs Outputs 9 Encoder board inputs outputs 9 Positioning the MIRAGE 9 Optimum control of the level of peak modulation 9 Best location for MIRAGE 10 Technical Specification 10 AUDIO INPUT 10 AUDIO OUTPUT 10 GENERAL DATA 11 Example of ba...
Страница 5: ...tude and phase are adjustable to ensure the best adaptation to any transmission system and the highest level of stereo separation MIRAGE helps prevent distortion arising in successive encoders and other transmission components through the use of bandwidth limiting filters 10 KHz low pass filters following the overmodulation compensation circuits Concepts of audio processing It is possible to defin...
Страница 6: ...or channels output 11 Led indicator power On Off Rear Panel 1 MAIN line input socket and power On Off switch 2 PILOT SYNC OUT 19 KHz output signal for synchronization of external systems 3 SCA signal level trimmer 4 SCA signal input 5 RDS signal level trimmer 6 RDS signal input 7 Trimmer for control of pilote phase 8 MPX composite signal output level trimmer 9 MPX composite signal output 10 Left c...
Страница 7: ...he sound more brilliant Density This control determines the amount of expansion applied to the signal before compression upto a maximum of 10 dB It is active over the entire audio spectrum With the control set at 0 no change to the sound takes place at 10 dB the dynamic range is reduced making the output sound more aggressive It is recommended that this control is used in moderation since a large ...
Страница 8: ...asis and deemphasis is selectable with Dip switch located in the rear panel De emphasis need only be selected in those states that have a legal requirement for de emphasis at the transmitter ENCODER adjustment ONLY FOR MIRAGE FM MPX Pilot Level This is the pilot signal level control which adjusts the level relative to the amplitude of the MPX output signal It can be adjusted via a trimmer Attentio...
Страница 9: ...ignal Also present are two inputs that can accept SCA and RDS signals which can be adjusted with trimmers and are added to the MPX output signal Furthermore an output provide synchronization to an external systems SYNC 19 KHz OUT 1 Vpp SW for the synchronizing of external encoders Positioning the MIRAGE The audio processing circuits of the MIRAGE produce a signal that is pre emphasized with curves...
Страница 10: ...15 KHz 0 3 dB By pass AGC Control 10 dB Stop Band Rejection 90 dB above 75 KHz Noise Output noise depends by processing parameters AGC threshold gain and density Greater than 84 dB Din Audio By pass Total distortion 1 KHz Than less 0 05 Crosstalk L R R L Greater than 60 dB Din Audio 90 dB 3 KHz AUDIO INPUT Configuration Left and Right Impedance 10 KΩ electronically balanced Input level 20 10 dBm C...
Страница 11: ...sis RDS level 24 0 dBm for 2 KHz of main carrier Input impedance 10 K Ω Connector BNC floating over chassis GENERAL DATA Power supply 87 265 VAC 50 60 Hz Power consumption 8 VA Dimensions 19 x 9 4 x 1 7 48 3 x 24 0 x 4 4 cm 1 rack unit Weight 8 4 Lbs 3 8 Kg Operating temperature 0 50 C Pin OUT I O audio interface 1 Right return output 2 Right inphase output 3 GND 4 Left return output 5 Left inphas...
Страница 12: ...GE MK III Broadcast Audio Processor AEV Broadcast Srl via della Tecnica 33 40050 Argelato Bologna ITALY www aev eu info aev eu 12 Example of balanced connection Example of unbalanced connect ion DIP SWITCH ...
