With three channels and up to 200 MHz bandwidth, the LA302 and LA303 analog oscilloscopes offer a high level of performance for relatively low cost.
Analog oscilloscopes offer unique benefits in solving specific measurement problems. The analog display provides important clues about the relative frequency content of signals mixed together or the occurrence of low rep-rate events on repetitive signals. The analog display effectively displays these "grey scaling" and "persistence" effects. The ultrafast display update rate lets you see how the waveforms behave in real time.
The LA302 and LA303 are perfect instruments for service and educational applications. Equipped with extensive TV triggering, both scopes are excellent for video testing.
The standard multipurpose trigger, five-digit counter, and comprehensive cursors make the LA302 and LA303 truly universal oscilloscopes.
Features
Convenient fine-adjustment mode
Pressing FINE and turning the knob enables slow scrolling of waveforms a function comparable to a digital storage scope's roll mode.
Line triggering provided for AC line measurement
AC line-related measurement of various frequencies can be obtained.
CH3 provides three sensitivity levels for a wider range of measurements.
Input with probe sensor function
When using a probe, the range display is automatically calibrated by detecting 10:1 or 100:1 with the probe sensor.
Specifications
Display
CRT: 6-inch rectangular, internal graticule (8 x 10 div with scale illumination), meshless CRT
Accelerating voltage: Nominal 16 kV
Vertical Deflection System
Mode: CH1, CH2, CH3, ADD, ALT, CHOP
Model LA302
5 mV/div - 5 V/div, DC 100 MHz; 2 mV/div, DC 50 MHz
Model LA303
5 mV/div - 5 V/div, DC 200 MHz;
2 mV/div, DC 50 MHz
Bandwidth Limiter: 20 MHz
Risetime:
Model LA302
3.5 ns or less
Model LA303
1.75 ns or less
Signal Delay Time: At least 30 ns
Input RC Direct: 1 MOhm ±1.5% // 20 pF ±2 pF
Input RC with Probe: 10 MOhm ±3% // 12.5 pF ±2 pF
Max. Input: Direct, ±400 V max, with 10:1 probe, ±600 V max
Polarity Switching: Possible only for CH2
Sensitivity: 2 mV/div - 5 V/div, 11 step (1-2-5); 2 mV/div - 12.5 V/div (with vernier)
Input Coupling: AC, DC, GND (The lowest usable frequency is 4 Hz with AC coupling.)
Sensitivity: 50 mV/div, 100 mV/div, 500 mV/div, ±2%
Triggering
A Triggering
Sources: CH1, CH2, CH3, LINE
Coupling: AC, DC, HF-REJ, LF-REJ
B Triggering
Sources: CH1, CH2, CH3
Coupling: AC, DC, HF-REJ, LF-REJ
TV Triggering:
ODD, EVEN, BOTH, line selection, TV system (NTSC, PAL/SECAM [HDTV optional in LA302, standard in LA303])
Trigger Sensitivity
LA302: DC - 10 MHz, 0.4 div
10 - 100 MHz, 1.0 div
LA303: DC - 10 MHz, 0.4 div
10 - 100 MHz, 1.0 div
100 - 200 MHz, 1.5 div
X-Y Operation
X-axis: Sensitivity, same as CH1; accuracy, ±3%; bandwidth, DC - 2 MHz
Y-axis: CH1, CH2, CH3, ADD
Horizontal Deflection System
Horizontal Display A, ALT, B, X-Y
A sweep
Model LA302
Sweep time: Fastest range, 20 ns/div; slowest range, 500 ms/div
Model LA303
Sweep time: Fastest range, 10 ns/div (1-2-5 step); slowest range, 500 ms/div
B sweep
Model LA302
Sweep time: Fastest range, 20 ns/div; slowest range, 5 ms/div; accuracy A/B, ±2%
Model LA303
Sweep time: Fastest range, 10 ns/div (1-2-5 step); slowest range, 5 ms/div; accuracy A/B, ±2%
Model LA302
Fastest Range: 2 ns/div
Model LA303
Fastest Range: 1 ns/div
Hold-off Time: Variable (up to sweep length or longer)
Auto Setup
Frequency Response: 50 Hz 50 MHz
CH2 Signal Output
EXT Z-axis Input
Utilities
Waveform: Square-wave, 1 kHz ±0.1%, 0.6 Vp-p ±1%
CTR Readout
Readout: Attenuator range, ADD, UNCAL, AC/DC/GND, vertical mode, CH2 polarity, A/B sweep range, x10 MAG, UNCAL, horizontal display mode, hold-off, trigger coupling, trigger source, trig slope, TV-field, TV-line, TV-system (NTSC, PAL/SECAM [HDTV in LA303])
Voltage difference: DeltaV
Division Calculation by DeltaT: 1/DeltaT
Frequency Counter
Display digits: 5 digits, decimal
Model LA302
Frequency measurement range:
2 Hz - 100 MHz (option six digit)
Model LA303
Frequency measurement range:
2 Hz - 200 MHz, reciprocal (option six digit)
Number of Panel Setups:
Model LA302 and LA303
32 max
Model LA302P
255 in banks of 63
Back-up: Battery back-up (approx. 30,000 hr)
Power Supply
Voltage range: AC 90 V - 132 V/ 180 V - 250 V
Frequency range: 48 Hz - 440 Hz
Power consumption: 110 VA max
Dimensions and Weight
Dimensions: 272W x 152H x 410L mm
Weight: approx. 7.5 kg (w/o access)
Environmental Conditions
Operating: 0°C +40°C, 90% RH (40°C)
Performance Guarantee: +10°C +35°C