RF Millivoltmeter
 
     
 
 

Test and Measuring Instruments
Auto Ranging RF Mill voltmeter 3145

 

RF Mill voltmeter 3145 has been designed to provide accurate RF level measurement from 20 KHz to 1GHz. It has useful response from 10 KHz to 1.5GHz and measures RF Voltages from 1mV to 3V F.S in eight ranges.

Linear dB scale from -60to +23 dBm complements volts sale. It suitable for RF voltage measurements of broad band amplifiers, oscillators & filters with minimum measuring Error as low capacity and high resistive probe minimize de- tuning and unwanted phase Shift in feed back networks.

 
 
It can be operated in auto mode for unknown voltages or the measurement range can be selected manually.

 
 
 
Specifications
Frequency Range 20 KHz to 1GHz
Voltage Range 1mV to 3VFs, Selectable
Display digital Meter
Resolution

0.5 dBm db scale -0.5dBm Mv scale -2%of FS measured in top black scale 3.3% of FS measured in bottom blackScale

Range Selection Auto or Manual
Voltage Accuracy(< 1Vrms input) with Tee adaptor And 50 ohms load
Basic Accuracy + (-) Frequency response
Basic Accuracy

+ (-) 2% FS at 25 Deg .CAt 100 MHz

Frequency Response

+ (-) 2%FS (200 KHz to 200 MHz)
+ (-) 5%FS (50 KHz to 500MHz)
+ (-) 11% FS (20 KHz to 1GHz)

Temperature Coefficient + (-) 0.2% FS per Deg. C
Crest Factor 4.2 to 1.4
Input Impedance
>100Kohms in parallel with 2.5 pf (typical)
Logarithmic Range

: +10 to -30 dBm. 50 Ohms in a single four Decade dB scale

Pen Recorder Output

Available from rear panel programme socket FS Equal 1V nominal Output Impedance 2 Kohms

Remote Programming

Range Selected by BCD code TTL levels. Negative logic.

 
General
Power Requirement : 230V AC + (-) 10%
Frequency 50Hz + (-) 10%
External DC

+ (-) 15V to + (-) 30 V, 200mA via rear panel Connector

Operative Temperature 0 to 55 0 C
Dimensions (Approx.)

(H*W*D)
95*235*275mm

Weight (Approx.) 3.3 Kg.
Accessories (supplied)

50Ohms Tee Connector and 50 Ohms Termination, Mains lead Probe earthing Clip, Operating Manual.

   
 
 
 
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   Design And Developed By Jingle info Soutions