Products catalog
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Price:
on request
Product information updated 05 October 2024.
Found cheaper?
Let us know. Our price is the best.
Warranty:
12 months.
Warranty extension up to 5 years.
Terms of delivery:
To all regions of the country, international delivery.
Product information updated 05 October 2024.
Found cheaper?
Let us know. Our price is the best.
Warranty:
12 months.
Warranty extension up to 5 years.
Terms of delivery:
To all regions of the country, international delivery.
Technical characteristics
Microvoltmeter SMV8.5 is highly sensitive measuring heterodyne receiver, operating in frequency range 26MHz-1000MHz.
Device is designed to measure high-frequency sinusoidal voltage and quasi-peak voltage interference measurements. Selective microvoltmeter SMV8.5 can be used as measuring device of field strength interference with measuring antenna type DP 3/ATR 2, DP 1/ATR 2 or LPA1-ATR2.
Impulse voltage and sinusoidal interference measurements in order to eliminate reception of radio interferences;
Useful field strength measurements and field strength interference in electromagnetic fields in conditions of stationary operation, and outside laboratory at open air;
Operating temperature range SMV8.5 - of-30 º C to +50 º C;
Maximum permissible water vapor pressure for period of not more than 500 hours - 35torr; Shock resistance of 6ms duration - maximum acceleration 12g, strokes amount - 1000;
Frequency scale error after calibrating at nearest mark - ±(3∙10-3∙fe+200kHz);
Frequency marks - n∙5MHz and n∙20MHz;
Receiver part frequency instability without additional frequency scale calibration on internal frequency marks:
- battery voltage oscillations 15%, -5% at unregulated battery voltage 12V - <4∙10-4;
- battery voltage oscillations ± 10% at regulated battery voltage 16V-30V - <2∙10-5;
- with ambient temperature changes - 2∙10-4/ºС±10kHz / º C;
SMV8.5 reference voltage types:
- AV 2 - average value of AM signals, reference limit 40 dB;
- QP - quasi-peak CISPR value;
- P - peak value;
SMV8.5voltage measurement limits:
- At work form AV1:
- 0dB-125dB (comparatively to 1mkV) or 5dB-120dB (comparatively to 1mkV with amplification increase on 5 dB);
- Voltage at signal / noise 6 dB at bandwidth 20 kHz - ≤ 1mkV;
- At the form of work AV 2:
- The lowest voltage for devices indicator complete deviation - 20dB (comparatively to 1mkV);
- At work form QP - for CISPR;
- For impulse voltage interferences at impulse frequencies repetition:
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Impulse repetition frequency
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Measurement limit
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<2Hz
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10dB-45dB (75dB) (comparatively to 1mkV)
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≥2Hz
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10dB-50dB (80dB) (comparatively to1mkV)
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≥5Hz
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10dB-55dB (85dB) (comparatively to 1mkV)
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≥10Hz
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10dB-60dB (90dB) (comparatively to 1mkV)
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≥50Hz
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10dB-70dB (100dB) (comparatively to 1mkV)
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≥100Hz
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10dB-75dB (105dB) (comparatively to 1mkV)
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≥500Hz
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10dB-80dB (110dB) (comparatively to 1mkV)
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≥1kHz
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10dB-85dB (115dB) (comparatively to 1mkV)
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- the lowest voltage at complete devices indicator deviation - 10dB (comparativelyto 1mkV);
SMV8, 5 voltage measurement error:
- Sinusoidal voltage at work form AV1:
- At ambient temperature +23 º C measuring limits 70dB - 75dB (comparativelyto 1mkV) - in divider position BCh- 30 dB, in High Frequency divider position - 35 dB ± 0.8 dB;
- Additional measurement error in other divider position in frequency ranges:
- 300MHz-1000MHz - ± 0.7 dB;
- Depending on ambient temperature - ± 0.02 dB / º C;
- Sinusoidal voltage at AV2 work type - in addition to error ± 3 dB;
- Interference voltage at QP work type;
- Impulse voltage for values ≥ 10 dB (comparatively to 1mkV) within devices indication of 5dB-10dB:
- In dividers position of intermediate frequency 5dB - ± 3 dB;
- In dividers position of intermediate frequency 0 dB - ± 6 dB;
- Impulse voltage for values ≥ 10 dB (comparatively to 1mkV) within devices indication 5 dB-10 dB in noise characteristics adjustment:
- In dividers position of intermediate frequency 0dB- ± 2dB;
- Signals amplitude modulation in P work type - in addition to error ± 1 dB;
SMV8. 5 measurement error, connection of two voltages at AV1work type :
- Dividers error voltage in following ranges:
- 26 MHz -300MHz - ± 0.6 dB;
- 300MHz-1000MHz - ± 0.9 dB;
- Devices indicator calibration scale error in readings limit 0dB-10dB - ± (0.05 dB/1dB+ 0.1 dB);
SMV8.5 input resistance:
- Z = 50 Ohm;
- matching coefficient in High Frequency voltage attenuation ≥ 20 dB in frequency range:
- 26 MHz -300MHz - ≤ 1.11;
- 300MHz-1000MHz - ≤ 1.25;
- matching coefficient in High Frequency voltage attenuation 0dB - ≤ 2;
SMV8.5 bandwidth - 120 kHz, 20 kHz, 1 kHz (for frequencies oscillation mode - additional voltage measurement error ± 0.5 dB);
Intermediate frequency selectivity:
- bandwidth 120 kHz
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decrease
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6dB
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40dB
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bandwidth
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120kHz±20kHz
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<300kHz
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decrease
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3dB
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40dB
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bandwidth
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20 kHz ±5 kHz
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<200 kHz
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- 300 MHz /1000 MHz -> 60 dB;
- 20MHz-300MHz -> 80 dB;
Other types channels attenuation:
- Components of signal conversion attenuation fin=n∙fgen± ff -> 60 dB;
Automatic frequency control of SMV8.5 is made by second local oscillator or calibration generator;
Amplitude-and frequency-modulated signals audition device SMV8.5 device - with built-in speaker, main phone connection;
Network frequency - 48 Hz -62Hz and 400Hz;
Power consumption - 15 V ∙ A;
SMV8.5 power from external battery:
- battery voltage - unregulated - 12V +15%, 12V- 5%, regulated – 16V-30V;
- current consumption - 300mA;
SMV8.5 dimensions – 550x200x400mm3;
Weight - 22kg.
Photos SMV 8,5
SMV 8,5 device image.
SMV 8,5 front view.
SMV 8,5 side view.
SMV 8,5 rear view.
SMV 8,5 overhead view.
SMV 8,5 bottom view.
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