AEV Xtreme II Manual Download Page 6

     

  

AEV Xtreme II Digital Audio Processor

      

 

AEV Broadcast Srl – via della Tecnica 33 – 40050 Argelato (BO) Italy 

 

Web site www.aev.eu     e-mail  [email protected]  

            

 

 

Sec. 1-4-1 Analogue inputs/outputs 

The analogue inputs are installed on two XLR female connectors, located on the rear panel. The input is 

10 

K

Ω 

high impedance, and the inputs accept signals up to +12dBu. The analogue outputs are provided with two 

XLR male connectors, located on the rear panel. The outputs can pilot loads of 

10 K

 
Sec. 1-4-2 Digital inputs/outputs 
 

The digital input is provided with an XLR female connector, located on the rear panel. Balanced input with a 110

Ω 

impedance. The digital output is provided with an XLR male connector, located on the rear panel. Impedance, as 
for the input, is 110 

Ω. 

 

Sec. 1-4-3 MPX outputs 
 

The stereo coder (optional) has two outputs on a non-balanced BNC connector, located on the rear panel. Each 
outputcan be connected via a cable with maximum length of 3 mt, before any signal deterioration occurs.  
The levels of the outputsare controlled by the “Jog” on the front panel. 
 

Sec. 1-4-4 RDS input (optional) 
 

The RDS input is active in the FM version, if the RDS internal coder is not installed. It is provided with a BNC 
connector, located on the rear panel, with 10 K

Ω 

impedance. 

Accepted levels range between 0 and -14dB. 
 

Sec. 1-4-5 SCA input 
 

A non-balanced BNC connector, for use with the SCA signal, is also available on the input. It can accept any type 

≥ 

of 23 KHz subcarrier. The subcarrier is mixed with MPX signals. Accepted levels range between 0 and -14dB. 

 

Sec. 1-4-6 RDS output (optional) 
 

The RDS coder (optional) has an output on a non-balanced BNC connector, located on the rear panel. The output 
level is fixed at 0dBu. It is also present on the MPX+RDS output with a level which can be adjusted from - infinite 
to -17.5dB. 
 

Sec. 2 Positioning and initial preset of Xtreme II 
 

Sec. 2-1 Xtreme’s best position 
 

Xtreme II’s best position is as close as possible to the transmitter, so that the stereo encoder output can be 
connected to the transmitter via a route causing minimal variation to the wave shape of the MPX signal. 
Xtreme II outputs can pilot a coder with cable length of up to 3 m before any appreciable degradation of the MPX 
signal is noted. 
If this is impossible, the best solution is either to: power up an external coder located close to the transmitter 
energiser via Xtreme’s base band analogue output, or to use the digital output with an essentially flat frequency 
response plus a constant wave train delay in the range 30 Hz to 15 KHz. 
To ensure maximum transmission quality, all appliances downstream of the studio must be carefully aligned and 
must satisfy the appropriate standards for wave width, distortion, wave train delay and gain stability. 
These appliances must be re-checked at reasonable intervals. 
It is therefore important that the sound source connected to Xtreme II has low noise at output, the flattest 
possible requency response and low distortion. 
 

Sec. 2-2 At first power-up 
 

Before powering up Xtreme II, make sure that mains power matches the value shown on the rear of the power 
supply and hat the electric system to which Xtreme II is connected, is supplied with a good grounding system. 

Summary of Contents for Xtreme II

Page 1: ...AEV Xtreme II Digital Audio Processor AEV Broadcast Srl via della Tecnica 33 40050 Argelato BO Italy Web site www aev eu e mail info aev eu 1 AEV Xtreme II Digital Broadcast Audio Processor...

Page 2: ...s important instructions concerning operator safety and directions regarding the installation operation and maintenance of the equipment Failure to observe the safety instructions and information give...

Page 3: ...supply itself The fuses must be replaced by qualiied 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 F...

Page 4: ...4 2 Adjusting the input level 9 Sec 4 3 Adjusting MPX coder parameters 10 Sec 4 4 System menu options 11 Sec 4 4 1 Setting date and time 12 Sec 4 4 2 Adjusting the display contrast 12 Sec 4 4 3 Lamp...

Page 5: ...ram Xtreme II s audio processing circuits produce a signal which is pre boosted with 50 s or 75 s curves and is controlled precisely and absolutely in order to avoid over modulation the signal is then...

Page 6: ...levels range between 0 and 14dB Sec 1 4 6 RDS output optional The RDS coder optional has an output on a non balanced BNC connector located on the rear panel The output level is fixed at 0dBu It is al...

Page 7: ...e II can be remotely controlled via an RS 232 standard serial port this enables you to control it via both PC and modem A 15 pole connector is also available on the Xtreme II s rear side to send on ai...

Page 8: ...Srl via della Tecnica 33 40050 Argelato BO Italy Web site www aev eu e mail info aev eu 8 By pressing Jog you can select Recall Preset then choose one of the 18 preset curves At the end of the select...

Page 9: ...you can scroll the available options OFF 50 S European standard and 75 S USA standard At the end of the selection return to Home initial menu Sec 4 2 Adjusting the input level Play a piece of music C...

Page 10: ...of the input level is available This can be amplified or reduced of 12 dBu By means of the Jog select a gain in order to have the processor operate around 0 dBm At the end of the setting return to Hom...

Page 11: ...ill find the parameters that may be changed PARAMETER SELECTABLE VALUES Configuratuon Left Right LR OFF L OFF R OFF LR ON Mode STEREO MONO Pilot Level OFF 28dB 18 4dB Pilot Phase 15 15 Composite Clipp...

Page 12: ...Select the parameter to be changed and carry out the correct set up by means of the Jog If you are varying a parameter but you wish to return to the previously set value a X is shown on the right of t...

Page 13: ...description at the end of the manual Sec 4 4 1 Setting date and time To set a new date and time press Jog and enter the System menu Then select Time Date select the value to change and turning the Jog...

Page 14: ...ontrols high frequencies and thus brilliance of the sound We recommend 3 0 Sec 5 2 HF CLIPPING Controls the timbre of high tones either SOFT 0 0 or more cutting 6 0 We recommend 0 5 Sec 5 3 PRESENCE C...

Page 15: ...mixer see installation chapter adjust this control in order to SQUASH the AGC bar to 10 15 dB in the event of a fully modulated programme 0 dB ON MIXER Sec 5 12 AGC Release For fixing the speed at wh...

Page 16: ...noise filtering at normal level excellent for all transmissions 8 0 Considerable filtering due to substantial ground noise We recommend 7 0 or OFF Sec 6 System Update To update your Xtreme II you need...

Page 17: ...AEV Xtreme II Digital Audio Processor AEV Broadcast Srl via della Tecnica 33 40050 Argelato BO Italy Web site www aev eu e mail info aev eu 17 Sec 7 2 Sample connection Remote RDS...

Page 18: ...RFORMANCE Frequency response 30Hz 15 KHz measured below compression and clipping THR Stop band rejection 78 dB beyond 17 KHz Noise 75 dB in all conditions depends on the processing parameters Total di...

Page 19: ...dB Typical 76 kHz suppression 70 dB Typical Composite audio level 0 12dB Connector BNC EMI suppressed Output impedance 50 ohm RDS GENERATOR RDS signal Standard specification EBU Doc Tech 3244 E and C...

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