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The material contained in this document is the property of Electronics & Innovation Ltd., it is 
subject to change without notice.  
 
December 2015 

Revision F 

 

 

2.2 RACK INSTALLATION 
 

This unit will accept optional Rack ears for mounting.  
 

2.2.1 Mains Voltage 

 
The unit accommodates AC line voltages from 100 TO 240 VAC 47 

– 63 Hz 

 

2.3 OPERATION 

 
A  line  cord  is  supplied  to  form  a  connection  between  the  mains  supply  and  the 
rear of the unit. Plug this into AC input at the rear of the unit and the AC mains 
outlet. 
 

2.3.1 Proceed as follows: 

 

(i) 

Ensure that there is at least 3” or 7.5 cm clearance at the rear of the 
unit for air flow. 

 

(ii) 

Ensure RF input voltage is not excessive 
a.  The 1 V rms indicated maximum input voltage is 5 times the level of 

the input signal required to achieve maximum output. Input voltages 
in excess of 2 volts peak may permanently damage the instrument. 

 

(iii) 

Connect  the  output  via  a  50  ohm  coaxial  lead  and  BNC  plug  to  the 
load. 

 
(iv) 

Connect  the  input  signal  via  a  50  ohm  coaxial  lead  and  BNC  plug  to 
the input connector. 

 

2.3.2 Front Panel Display 

 

The 350L front panel has a passive LCD display designed for simplicity and ease 
of use.  During initialization, the LCD shows the software revision.  After the 
amplifier is initialized, the LCD indicates Forward Power, Reflected Power, and 
amplifier status (see figure 2.1).     

Pf:___W Pr:___W 

Status:________

 

Figure 2.1 : Front Panel Display 

Where Pf refers to forward power, Pr refers to reverse power, and Status 
indicates “OK” unless there is a fault condition, such as: 

  Overheat (heat-sink temperature is too high for reliable operation) 

Содержание 350L

Страница 1: ...otice December 2015 Revision F 1 350L Broadband Power Amplifier HIGH RF VOLTAGES MAY BE PRESENT AT THE OUTPUT OF THIS UNIT All operating personnel should use extreme caution in handling these voltages...

Страница 2: ...operational such that it performs according to the original specifications free of charge to the original purchaser Should warranty service be required the unit must be returned to E I freight cost t...

Страница 3: ...ify inputs of AM FM SSB pulse and any complex modulation signals The amplifier has 50 dB gain it is unconditionally stable and will not oscillate even with mismatched load impedance It is protected ag...

Страница 4: ...or all output load conditions without damage POWER OUTPUT METER True RMS power detection 3 of full scale accuracy POWER REQUIREMENTS 100 240 VAC 47 63 Hz SIZE H x W x D 7 5 x 9 5 x 12 5 190 5 x 241 x...

Страница 5: ...ximum input voltage is 5 times the level of the input signal required to achieve maximum output Input voltages in excess of 2 volts peak may permanently damage the instrument iii Connect the output vi...

Страница 6: ...nd unrestricted If the fault persists please contact Field Service 2 3 3 RS 232 Interface The 350L features a standard RS 232 serial interface suitable for connection to a PC or host system The commun...

Страница 7: ...transistor Q1 The further amplified signal appearing at the drain of Q1 is coupled to the input of Q2 This is transformed to 50 and fed to the driver output port The driver output signal is fed throu...

Страница 8: ...RMANCE CHECKS To determine the amplifier s performance carry out the following procedure 4 2 1 Initial Check The following check can be made after repair and adjustments or whenever the condition of t...

Страница 9: ...f the above items are found to be outside of the specification check the spectral content of the input signal If this is a pure signal then the unit needs to be returned to the factory for service 4 3...

Страница 10: ...enerator for full vertical deflection on the oscilloscope face e Calibrate the scope face to show 3 dB in 1 dB steps by attenuating the sweep generator in 1 dB f Return sweep generator output level to...

Страница 11: ...If this is not available wrap the instrument in heavy paper or plastic and place in a rigid outer box of wood fiberboard or very strong corrugated cardboard Use ample soft packing to prevent movement...

Страница 12: ...the property of Electronics Innovation Ltd it is subject to change without notice December 2015 12 Revision F Appendix A Page 1 350L Rev 1 Block Diagram 4 X Splitter Gating Board Option 403 LA TTL Inp...

Страница 13: ...cument is the property of Electronics Innovation Ltd it is subject to change without notice December 2015 13 Revision F Coupler RF OUT To Page 3 j RF Detect Page 2 350L Rev 1 Block Diagram From Page 1...

Страница 14: ...of Electronics Innovation Ltd it is subject to change without notice December 2015 14 Revision F AC IN Controller To page 2 j TTL Control Front Panel LCD To Rear Panel RS232 SMPS 24 Volt To page 1 a...

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