background image

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

 

August 2012                                                                                                                        Revision D                                                                                                                   

 

Chapter   1 Introduction 

 

 
The 2500L is a broadband solid state amplifier covering the frequency spectrum from 50 
KHz  to  12  MHz.  It  is  rated  at  500  watts  of  RF  power  with  low  harmonic  and 
intermodulation  distortion.  Over  800  watts  of  saturated  power  can  be  produced  with 
increased  distortion  products  from  100  KHz  to  12  MHz.  A  linear  Class  A  design,  the 
2500L  will  amplify  inputs  of  AM,  FM,  SSB,  pulse  and  any  complex  modulation  signals. 
The amplifier has 60 dB gain, it is unconditionally stable  and will  not  oscillate even with 
combinations  of  mismatched  source  and  load  impedance.  It  is  protected  against  failure 
due to output load mismatch and/or overdrive. 
 
RMS forward and reverse powers are monitored by a front panel meter. An integral power 
supply permits operation from 200-240VAC Single Phase AC power. 

 

 
 

1.2     INSTRUMENTATION IDENTIFICATION 

 
Each amplifier is identified by a serial number tag on the back panel of the unit. Both the 
model number and the serial number should be quoted to identify specific unit.  
 

1.3      SPECIFICATIONS 

 
Physical and electrical specifications are listed in Table 1-1 below 
 

Содержание 2500L

Страница 1: ...out notice August 2012 Revision D 1 2500L 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 volt...

Страница 2: ...lly 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 cos...

Страница 3: ...ts of AM FM SSB pulse and any complex modulation signals The amplifier has 60 dB gain it is unconditionally stable and will not oscillate even with combinations of mismatched source and load impedance...

Страница 4: ...conditions without damage POWER OUTPUT METER True RMS power detection 5 of full scale accuracy POWER REQUIREMENTS 200 240VAC Single Phase 47 63 Hz SIZE 24 X 16 75 X 20 inches 330 X 425 x 508 mm WEIGHT...

Страница 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 a...

Страница 6: ...t system The communication protocol is extremely simple to facilitate readback and control with readily available terminal programs such as Hyperterm The RS 232 link has the following parameters Baud...

Страница 7: ...port The driver output signal are fed through a length of coaxial cable to the input of a power splitter the outputs of this are fed to the power amplifier modules In each PA module the signal is spli...

Страница 8: ...RF IN RF OUT To Page 2 c RF Detect 2500L RF Amplifier Splitter Driver 1 24 Volt To Page 2 a To Page 2 b To Page 2 b 42 Volt 42 Volt 2100L PA 2100L PA 2100L PA Driver 1 Splitter 2100L PA 42 Volt Splitt...

Страница 9: ...nd is fail safe under all load conditions Damage can only be externally caused by the incorrect selection of the AC supply voltage or by an input signal in excess of the specified 1 volt rms equivalen...

Страница 10: ...tput level of the sweep generator so that a 50 ohm video detector connected at the output of the unit will not be damaged by excessive power output Reference section 4 4 1 for set up d Observe the gai...

Страница 11: ...tts Bird Figure 4 1 Gain Measurement 2 Connect the equipment as shown in Figure 4 1 then proceed as follows a Set the oscilloscope to DC Time cm to Ext X and gain to l0mv cm b Set the sweep generator...

Страница 12: ...ction Rotate the step attenuator CCW so that the output is reduced by 50 dB g Reconnect the 2500L into the test set up of Figure 4 1 h Place the 2500L power switch to the ON position i Observe the gai...

Страница 13: ...in a rigid outer box of wood fiberboard or very strong corrugated cardboard Use ample soft packing to prevent movement Provide additional support for projecting parts to relieve these of unnecessary s...

Отзывы: