LA314/314H Technical Specifications

Main Features

• 4 Channels
• Up to 500ps/div Time Resolution
• High-Speed Auto Setup
• Cursor Measurements
• Event and Burst Trigger Modes
• Full TV Trigger with clamping
• Save and Recall Panel settings
• Frequency Counter
• High-Input Offset Range
• High Intensity CRT
• Power for FET Probes

Specifications

• DC - 470 MHz, 4-CH, 10 traces: Four channels up to 470 MHz are available, with CH1 and CH2 boasting the widest frequency range with highest sensitivity (2mV/div). The fastest sweep speed is 500 ps/div.
• Input offset function: Suitable for the observation of small signals superimposed on large signals. The DC input offset function features an offset equivalent to ±500 div. max, which can be applied to CH1 or CH2.
• Counter measurement function: Built-in 5 digit counter for frequencies up to 470 MHz.
• Save/Recall up to 256 panel settings: Just turn the FUNCTION knob to recall panel setups. Stores up to 256 settings in memory.
• Power for FET Probe: Dedicated power supplies for 2 FET probes. Controls DC offset voltage of each probe as well.
• TV/HDTV Synchronization: TV triggering is available for NTSC, PAL, (SECAM) and HDTV. Field (EVEN, ODD, BOTH) and line select functions are included.
• TV Clamp Function: Easy observation of TV video signals with fluctuating average voltage. Back porch level of composite signals is fixed to ground level for display.
• Typical Applications:
  • Video, especially VCRs and TVs.
  • Data recording, finding servo anomalies, glitches and intermittent phenomena in the disk-drive head- signals.
  • Eye patterns (for DVDs) in optical disk measurements.
  • Wide-bandwidth noise measurements on magneto optical disks.
  • Radar/Lidar burst measurements.
  • Eye pattern measurements on ATM 155 Mbps signals.
• Display:
  • CRT: 6-inch rectangular, internal graticule (8 x 10 div) meshless CRT
  • Accelerating voltage: Approximately 20 kV
• Vertical Deflection System:
  • Mode: CH1, CH2, CH3, CH4, ADD (CH1 + CH2), ALT, CHOP
  • Channel 1, 2 Sensitivity: 2 mV/div - 5 V/div ±2%, 11 step (1-2-5)
  • Fine Adjuster: 2 mV/div - 12.5 V/div continuously variable
  • Bandwidth (-3dB):
    • Model LA314H: 470 MHz (5 mV/div - 50 mV/div); 440 MHz (2 mV/div, 100 mV/div - 5 V/div)
    • Model LA314: 400 MHz (2 mV/div - 5 V/div)
  • BW limiter: 20 MHz and 100 MHz selectable
  • VSWR: Less than 1.35:1 over DC - 400 MHz (with 50 ohm input)
  • Rise time:
    • Model LA314H: Approx. 745 ps @ 20 mV/div
    • Model LA314: Approx. 875 ps
  • Input coupling: AC, DC, GND
  • Input RC: Hi-Z input: 1 Mohm ±1.5%||16 pf ±2pf, Lo-Z input: 50 ohm ±1%.
  • Maximum input voltage: 1 Mohm input: ±400 V max.; 50 ohm input: 5 V RMS
  • Polarity switching: CH2 only
  • Probe sensors: 1:1, 1:10, 1:100 detection possible
  • Offset voltage variable range:

    Offset voltage	Vertical axis range
    ±1 V	2mV/div - 50 mV/div
    ±10 V	0.1 V/div - 0.5 V/div
    ±100 V	1 V/div - 5 V/div

  • Channel 3, 4 Sensitivity: 100 mV, 500 mV/div
  • Accuracy: ±3% (+10°C - +35°C)
  • Bandwidth (-3dB): 400 MHz
  • Rise time: Approx. 875 ps (bandwidth x rise time = 0.35)
  • Input coupling: AC, DC
  • Input RC: Direct: 1 Mohm ±1.5% || 16 pF+3pF, when using the probe (SS-082R): 10 Mohm ±2% || 13pF ±2pF
  • Maximum input voltage: ±400 V max
  • Probe sensors: 1:1, 1:10, 1:100 detection possible
• Triggering
  • A Triggering:
    • Sources: CH1, CH2, CH3, CH4
    • Coupling: AC, DC, HF-REJ, LF-REJ
    • Polarity: ±
    • TV sync - Line selection: NTSC: 1 - 525H; PAL (SECAM): 1 - 625H; HDTV: 1 - 1125H
  • B Triggering:
    • Sources: CH1, CH2, CH3, CH4, LINE
    • Coupling: AC, DC, HF-REJ, LF-REJ
    • Polarity: ±
    • Event Delay: Count: Setting range: 1 - 65535 maximum count freq.: 50 MHz
    • Burst: Time setting range: 0.15 µs - 9.99s
    • Auto setup: Input channels: CH1, CH2, Freq. range: 50 Hz - 100 MHz
• Horizontal Deflection System Display A, ALT, B, X-Y
  • A sweep:
    • Mode: AUTO, NORM, SINGLE
    • Sweep time: 5 ns/div - 500 ms/div ±2%, 25-step (1-2-5)
    • Fastest sweep time: 500 ps/div
    • Fine adjuster: 5 ns/div - 1.5 s/div
  • B sweep:
    • Delay:
      • Triggered delay: CH1, CH2, CH3, CH4
      • Continuous delay: B delayed by A
    • Sweep time: 5 ns/div - 20 ms/div ±2%, 21 step (1, 2, 5)
    • Delay time range: 0.2 div - 10.2 div;
    • Accuracy: + (setting value x 0.005) + (sweeptime x 0.1) -55 ns
    • Magnifier (MAG): 10 times
    • Accuracy: ±5% (+10°C - +35°C)
• X-Y Operation:
  • X axis: CH1
  • Y axis: CH1, CH2, CH3, CH4, ADD
  • Accuracy: ±2% (+10°C - +35°C)
• CH2 Out:
  • Output voltage: 20 mV/div ±30%
  • Frequency output: DC - 200 MHz (50 ohm load)
  • Output resistance: 50 ohm ±20%
• Utilities:
  • Save/Recall Function:
    • Number of panel setups: 256 max
    • Comments: 12 characters max
  • Modulation (Z-axis):
    • Minimum modulation voltage: 0.5 Vp-p
    • Polarity: Positive (dark)/negative (bright)
    • Frequency range: DC - 5 MHz
    • Max. input voltage: 40 V
  • Calibrator
    • Waveform: Square
    • Repetitive frequency: 1 kHz
    • Accuracy: ±0.1%
    • Output voltage: 0.6 V
    • Accuracy: ±1%
  • Power for FET probes
    • Voltage: 2 each +12 V outlets for 2 FET probes, offset control available
  • CTR Readout:
    • Counter
      • Display digits: 5 digits shown at all times
      • Accuracy: ±0.01%
      • Frequency measurement range: 2 Hz - 400 MHz
    • Cursor Measurement
      • Voltage axis: 2
      • Time axis: 2
      • Time difference: deltaT
      • Voltage difference: deltaV
      • delta T & delta V can be simultaneously measured
• Power:
  • Voltage range: AC 90 V - 250 V
  • Frequency range: 48 Hz - 440 Hz
  • Power consumption: 120 VA max
• Dimensions and Weight:
  • Dimensions: Approx. 320W x 160H x 420L mm
  • Weight: approx. 8.5 kg (19.8 lbs)
• Approvals:
  • EMC: Comforms to EN55011 and EN50082-2.
  • Low Voltage: Conforms to EN61010-1 Installation Category II, Pollution Degree 2.
• Safety:
  • UL and cUL Approved: Comfirms to UL3111-1 Confirms to Canadian Standard CSA-22.2, No. 1010.1-92