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MULTICHANNEL DIGITAL ANALYZERS

Multichannel digital analyzers is a high-performance, fast(response) device with a standard PC, intended for checking and characterization of digital circuits. Carries out grouping of input channel in serial bus.

Analyzer's  operates in two different modes: 
  • internal synchronization mode(at recording of input data is used the internal clock frequency oscillator);
  • external synchronization mode (at recording of input data is used the external clock frequency oscillator)

 Multichannel digital analyzer includes: 

  • module of the logical analyzer;
  • personal computer (PC);
  • software. 

 

Analyzer's modifications Number of input channelClock frequencyNumber of analog inputs
DA 16/20,40,80 1620,40,80  --------
DA 32/20,40,80  3220,40,80  --------
DA-À1 16/20,40,80  1620,40,80  
DA-À2 16/20,40,80  1620,40,80  
DA-À1 32/20,40,80  3220,40,80  
DA-À2 32/20,40,80  3220,40,80  
DA-À3 32/20,40,80  3220,40,80  
DA-À4 32/20,40,80  3220,40,80  

 Modifications DA-A1…DA-A4 have the additional opportunity to measure the analog signal from 10 mV to 10 V.

SPECIFICATIONS 

Memory capacity of data acquisition for one channel 128 Kb
Program decoding of serial bus RS 232, SPI. 12C
PC connection LPT
DC Supply voltage from external source 5V
Max. power consumption 5W
User interface WINDOWS 95/98/NT/XP

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CONTROLLER BY TECHNOLOGICAL PROCESSES 

The controller by technological processes is indented for organization of remote switching ON/OFF,controlling and measuring up to 8 (with opportunity to increase up to 24), and regulation up to 8 (with opportunity to increase up to 16) parameters.

Provides the following types of adjustment: 

  • manual (by inserted the necessary value);
  • automatic (the algorithm and value of limits of adjustable parameters are set ). The accuracy of adjustment depends on the given algorithm. 

 

The main units of the controller are:
  • micro-controller (MC) with analog-digital converter based on pulse-duration modulation (ADC-PDM); 
  • analog-digital converter based on pulse-code modulation (ADC); 
  • nonvolatile RM;
  • interface of sequential standard ports RS-232 and RS-485;
  • interface of control and indication (ICI). Consists of the keyboard (16 keys) and liquid-crystal detector (LCD) with lighting control;
  • analog commutator (AC); 
  • clock with RAM;  
  • attenuator (Att);
  • analog filter and level converter (AFLC); 
  • keys (photon-coupled and transistor).

 SPECIFICATIONS

Interface with central computer  RS 232C or RS 485
Voltage:    
- input control signals  0…5 V
- output  control signals (six digit ADC has 64 discrete values of voltage)  0…12 V
Power consumption:   
 - in operation mode, no more than  1 W
 - in STAD BY mode  0,001 W
Measurement accuracy of input signals  0,02 V
Storage time of values of the adjustable parameters   
-independently of power supply, not less than  10 years

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MICROWAVE POWER AMPLIFIERS FOR  RRL

 Power amplifiers are intended for operation in transceiver of repeaters. Provide high reliability, low power consumption, having small dimensions and weight. 

Produced four modifications of amplifiers:  AMP-0,5/1, AMP-0,5/2, AMP-1,0/1, AMP-1,0/2

  

Type  Operating  frequency range        Output power  at input power 3,5 mW          
AMP-0,5/1  5670...5920 MHz  0,5 W  
AMP-0,5/2  5920...6170 MHz  0,5 W  
AMP-1,0/1  5670...5920 MHz  1,0 W  
AMP-1,0/2  5920...6170 MHz  1,0 W  

 SPECIFICATIONS 

Non-uniformity of amplification in bandwidth  ±20 MHz0,3
Supply voltage  minus (24 ± 2,4) V
Consumption current  0,35 A
Operating temperature range  0...550C
Weight   1,2 kg
Dimensions:   
AMP-0,5/1, AMP-0,5/2  245x65x65 mm
AMP-1,0/1, AMP-1,0/2  245x100x65 mm

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ULTRAHIGH FREQUENCY DUPLEXING FILTER 

It is applied in TV technique for joint operation of two transmitters with different frequencies (video and sound signal support), loaded on one general (common) antenna. 

Prevents mutual influence of transmitters and their cross modulation.
The device is made as double, 3-dB stubbed bridge with two band rejection  filters.

SPECIFICATIONS

Range frequencies  470…780 MHz
Operating frequency band  10 MHz
Input  VSWR  1,3
Losses of a path:   
    -sound support  1,5 dB
    - of the video-signal  0,6 dB
Power suppression of one transmitter to the input of other  30 dB
Dimensions  250x160x60 mm
Weight  1,5 kg

 

 
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BAND PASS FILTERS

It is intended for separation and selection of VHF,UHF and microwave  signals.
Used on the input or output systems of satellite, radio - relay  communication and TV engineering
Input /output of filters are coaxial ports  (SMA  Female).
Advantages:
    - low  insertion loss;
    - excellent  rejection.

 Filters are produced in following modifications:   

Type Frequency range, MHz Relative band pass(%) 
VHF TV-filters  50...250  2,5...13,0  
Band pass filters BPF-2,2  470...800  0,8...1,5  
UHF TV-filters  2000...2300  2,0  
Band pass filters BPF-2,6  2500...2700  1,0  
Band pass filters BPF-5,7  5700...5900  2,0  
Band pass filters BPF-7,5  7100...8500  1,75...2,1  

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