Sefram 7804 Dvb-c Digital Tv/cable Meter

US $450.00

  • ISRAEL, Israel
  • Jan 29th
FOR SALE IN EXCELLENT CONDITION SEFRAM 7804 DVB-C DIGITAL TV/CABLE METER The spectrum is displayed very nice for sake of picture I used a piece of wire as antenna... Perfect assistant for measurement of cable television signals (standards DVB -C and MCNS )   Durability and ease of operation With just four buttons on the front panel provides direct access to all measurements.  New robust and rigid body designed specifically for long-term use in the field, it protects sensitive to damage parts of the appliance.   Measurement standards DVB-C, MCNS , the analog measuring signal, and Model 7804 B / BT provide all measurement standards DVB-C and MCNS (J.83A standards and J.83B ) . Allow to measure: the bit error ratio ( BER ), modulation error rate ( MER ), and the lost data packets. For analog television signals in the device 7803 B / BT provides measurement: level, signal / noise ratio of the carrier frequency (C / N ), relations V/A1, V/A2.   7804BT device : external unit If you need to provide power external devices, choose a model 7804 BT , which provides 24V / 250mA (maximum) for external devices.   Having all of the functions necessary for signal analysis   Device 7804 B / BT includes a spectrum analyzer and displays the graph for the quadrature modulation QAM . The user can monitor 12 channels in graphical form, a convenient feature for balancing the amplifier output.   USB interface The device has a USB interface 7804B/BT to update firmware and embedded software free from external sources. To measure television signals can be used TR 7836 (optional for PC) to create reports or frequency card user.   Technical characteristics 7804B - 7804BT Frequency   Range 5-865 MHz Resolution 100 kHz (measured), 25 kHz (mapping) Level measurement   Dynamic range 20-120 dBuV Units of measurement dBuV , dBmV, dBm In Error ± 2 dB + / - 0.05 dB / ° C (± 3 dB to 100 MHz) Resolution 0.1 dB Measurement filter 100 kHz Modulation Analog, DVB-C (QAM), J.83A and (MCNS) J.83B Other measurements C / N, V/A1, V/A2 Measurement errors DVB-C and MCNS Bit error ratio (BER) BER, UNC (lost packets) Intensity modulation error (MER) 20-40 dB Symbol rate 1 - 7 mln.vyborok / sec Standards EN 300-429, J.83A, J.83B Spectrum Analysis   Frequency Sweep 300 ms typical Filter 100 kHz Attenuator Automatic (from 0 to 60 dB in 5 dB steps) Dynamic range (map) 60 dB (10 dB / div), 30 dB (5dB/delenie) Range From 10 MHz to complete the range in increments of 1, 2, 5 Measurement map   Capacity 12 programs Mapping (Histogram) Quadrature chart   Mapping   Scaling DVB-C: 4-QAM, 16-QAM, 32-QAM, 64-QAM, 128-QAM and 256-QAM MCNS: 64-QAM and 256-QAM  X1, X2, X3 Memory   Program 100 programs Capacity 1000 files up Input / output   Interface Mini USB Power supply input 8 V to 15 V DC, 1 A External voltage ( model 780 4 BT)   Voltage 24 V, 250 mA max RF input   Jack BNC (female), 75 Ohm The maximum input voltage 80 V DC, 80 V rms value / 50 Hz General characteristics   Display LCD display with backlight, 128 x 64 pixels Supply 8 - 15, the maximum 1A Battery 8 NiMH batteries, 1.2 V, 1700 mAh, size AA, or 1800 mAh NiMH battery Autonomy 3 hours (typical) Charging time Slow charge , 16 hours Operating temperature range From 0 ° C to 40 ° C Storage temperature From -10 ° C to 60 ° C (without batteries) Electromagnetic compatibility and safety Standards EN-61010-1, EN61326-A1 and A2, EN55022 (B) Measurements 200 x 190 x 100 mm Weight 1.6 kg (with batteries)   the batteries are good and all is very nice condition looks like it was never used or used very little!!! I ship world wide

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