background image

 
 

Figure 1: 
 
325LA Specification: 

 
Frequency Coverage: 

250 kHz to 150 MHz  

Gain: 

50 dB  

Gain Variation: 

±1.5 dB 

Maximum Class A Linear Output: 

25W 

 
Harmonic Distortion: 

All harmonics more than 23 dB below 
main signal at 20W output; lower at 
reduced power output. 

 
Drive Source Requirements 
 

Any signal generator, function 
generator, or oscillator capable of 1 
mW of output into 50

 Ω

 

Input/Output Impedance:  

Input VSWR:  
Output VSWR:  

50

 

1.5:1 Maximum 
2.5:1 Maximum 

Power Requirements: 
 

115VAC ±10%, 50-60Hz, 3.5A; 
230VAC ±10%, 50-60Hz, 1.7A 

Power Output Display: 

Forward and Reverse power in Watts; 
with an accuracy of 5%. 

Noise Figure: 

10 dB Maximum 

Typical 3rd Order Intercept Point: 

+53dBm 

Stability:  

Continuous operation into any load or 
source impedance. 

Protection: 

Unit will withstand a +13dBm input 
signal (IV RMS) for all output load 
conditions, including short and open 
circuit loads. 

Front Panel Controls:  

AC Power On/Off  

Front Panel Display:  

LCD backlit display 

Front Panel Connections: 

RF Input RF Output 

Operating Temperature: 

0° to 45° C 

Cooling  System  

Forced air

 

Size: 

7.5" H x 9.5" W x 12.5" D  
19.05 x 23.13 x 31.75 cm. 

Weight: 

25 ibs; 11.3kg. 

Input Connector:  

Type BNC 

Output Connector:  

Type BNC 

Rack Mounting: 

19 inch adaptors optional 

 
 
 
 
 

Summary of Contents for 325LA

Page 1: ...furbished and purchasing new Financing options such as Financial Rental and Leasing are also available on application TMG will assist if you are unsure whether this model will suit your requirements C...

Page 2: ...tice February 2007 Page 1 of 17 Revision C 325LA Broadband Power Amplifier HIGH RF VOLTAGES MAY BE PRESENT AT THE OUTPUT OF THIS UNIT All operating personnel should use extreme caution in handling the...

Page 3: ...it fully 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 freigh...

Page 4: ...d on the front panel meter The Model 325LA is packaged for bench mounting and can be supplied with rack mounting adapters It has an integral power supply which operates from an 85 264 VAC 47 63 Hz mai...

Page 5: ...ng brackets to the sides of the unit using the screws removed in step b 2 5 Mains Lead Connection The unit comes supplied with a 6 foot mains cord 2 6 Cooling When the 325LA is enclosed by an external...

Page 6: ...ess there is a fault condition such as Overheat heat sink temperature is too high for reliable operation PSU fault internal fault in the main switching power supply In the event of a fault the unit ma...

Page 7: ...the front panel LCD display allowing a running datalog to be stored to disk using the capture feature of the terminal program Single character commands can be sent to the amplifier to achieve the fol...

Page 8: ...er The unit is designed to withstand 100 reflected power a pure reactance open or short circuit load will cause 100 reflected power continuously without damage An output meter is provided to indicate...

Page 9: ...inates ii Connect the output of the 325LA amplifier to 20 dB attenuator iii Connect a calorimetric power meter HP434 or equivalent to the output of the attenuator iv Connect a sweep generator Wavetek...

Page 10: ...3 then proceed as follows d Adjust the sweep Signal generator at a CW center frequency of 150 MHz for an indicated output of 25W on the power meter e Using the spectrum analyzer check that the level o...

Page 11: ...M3 screws on the side of the unit The rear panel supports the mains fuse holder AC line cord and the cooling fan 4 4 Power supply The power supply is mounted vertically on the right hand side of the a...

Page 12: ...Electronics Innovation Ltd it is subject to change without notice February 2007 Page 11 of 17 Revision C Appendix Figures Figure 1 325LA Specifications Figure 2 Front and Rear View Figure 3 Gain Test...

Page 13: ...60Hz 1 7A Power Output Display Forward and Reverse power in Watts with an accuracy of 5 Noise Figure 10 dB Maximum Typical 3rd Order Intercept Point 53dBm Stability Continuous operation into any load...

Page 14: ...The material contained in this document is the property of Electronics Innovation Ltd it is subject to change without notice February 2007 13 Revision B Figure 2...

Page 15: ...nt is the property of Electronics Innovation Ltd it is subject to change without notice February 2007 14 Revision B Figure 5 Figure 4 Power Sweep RF 150 KHz 300 20 dB Attenuator Spectrum Power Power S...

Page 16: ...S1 Thermal switch 1 2 50 ohm 100W J2 Front panel RF input 0dBm Controller Fwd_in Rev _in TX RX f p_tx f p_Vdd f p_gnd DC Status PSU Enable PSU Enable ret DC Status_ret ov erheat_rtn ov erheat gnd gnd...

Reviews: