|
 |
|
| |
SM1641(A) |
SM1642(A) |
SM1620(A) |
| Frequency |
0.1
- 2 MHz |
0.1
- 5 MHz |
0.1
- 10 MHz |
| Output Waveforms |
Sine,
Triangle, Square, Positive and Negative Pulse,
Positive and Negative Ramp |
| Output Impedance
|
50
¥Ø ± 10 £¥ |
| amplitude |
Not
less than 20 Vp-p(Open Circuit) |
| DCVoltage |
0 £±
10
V Continuously Adjustable |
| Symmetry Range |
90:10
-- 10:90 |
| Rising Edge of
Square |
less
than 100 ns |
less
than 50 ns |
less
than 25 ns |
| Sine
Characteristic |
| Distortion |
10
Hz - 100 kHz ±1 £¥ |
| Frequency Response
|
0.1
Hz ~ 100 MHz£ºless than ± 0.5 dB |
| 100
kHz ~ 2 MHz(SM1641)£ºless than ± 1 dB |
| TTL/CMOS
Output |
| Level
|
TTL
low level less than 0.4 V in pulse wave£¬high
level less than 3.5 V. |
CMOS
low level less than 0.5 V in pulse wave£¬high
leve5 V - 14 V
continuously variable. |
| Rising Time |
Less
than 100 ns |
| VCF
Input |
| Output Voltage
|
£5
V ~ 0 V ± 10 % |
| Max. Voltage Controlled
|
1000
: 1 |
| Input Signal |
DC
- 1 kHz |
| Frequency
counter |
| Measure Range |
1 Hz
- 10 MHz ¡Ã 10 VP-P |
| Input Impedance |
1 M¥Ø/
20 pF |
| Sensitivity |
100
mV RMS |
| Max. Input |
150
V (AC + DC) |
| Input Atttenuation |
20
dB |
| Accuracy |
Less
than 0.003 % ± 1 % |
| Line Power |
220
V / 110 V ±10 %£»50 Hz / 60 Hz |
| Dimension |
310(W£©x
230(H£©x 90(D£©mm |
 
PT-3C
| Specifications
|
| Frequency
Range |
Full sweep
: 1 - 300
MHz
Narrow
sweep :
Central
frequency
1-300MHz
Spot
frequency
: 1 - 300
MHz variable |
|
Output
Voltage
|
0.5
Vrms
/ 75 ¥Ø
|
|
Output
Flatness
|
Better
than ±
0.15 dB
|
|
Output
Attenuator
|
10
dB in 7
steps and
1 dB in
10 steps
|
|
Marker
Display
|
50
MHz, 10
MHz, 1 MHz
and external
frequency
|
|
Vertical
deflection
Factor
|
Better
than 2mVp-p
/ div
|
|
Display
|
CRT
|
|
Dimension
|
340
x 190 x
320
|
|
Weight
|
8
kg
|
Wow & Flutter Meter 668E
| Specifications
|
| Wow
Flutter
Measurement |
|
Measuring
Range
|
0.03,
0.1, 0.3,
1, 3 % Full
Scale in
5 Ranges
|
|
Meter
Accuracy
|
Within
±
5 % of full
scale indication
|
|
Indication
|
CCIR,
DIN, NAB,
JIS
|
|
Center
Frequency
|
3.15
kHz ±
200 Hz (DIN)
3
kHz ±
200 Hz (CCIR,
NAB, JIS)
|
|
Input
Level
|
5
mV ~ 10
Vrms
|
|
Function
|
LIN,
WOW, FLUTTER,
WTD
|
|
Tape
Speed Drift
Measurement
|
|
Range
|
3.15
kHz ±
200 Hz,
3kHz ±
200 Hz
|
|
Display
|
4
digit LED
|
|
Frequency
Counter
|
|
Frequency
Range
|
10Hz
~ 9999 Hz
|
|
Accuracy
|
Time
Base Accuracy
±
1 digit
|
|
Time
Base
|
3
MHz ±
100 ppm
|
|
Gate
Time
|
0.1s
and 1s
|
|
Display
|
4
digit LED
|
|
Input
Level
|
0.1
V to 10
Vrms
|
|
Input
Impedance
|
300
k¥Ø or higer
|
|
Power
supply
|
220
±
10 %, 50
/ 60 Hz,
15 W
|
|
Dimension
|
325(W)
x 100(H)
x 345(D)
|
|
Weight
|
5
kg
|
|
| |
|
|
)
