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Page 4
SPECIFICATIONS
INPUT*
Frequency Range
5 Hz to 110 MHz minimum (typ. 130 MHz at 25
°
C).
Sensitivity
15 mV rms.
Input Impedance
1 MS
-
t shunted by 15 pF.
Maximum Voltage
200 V rms.
TIME BASE OSCILLATOR (Referenced to 25
°
C after 1/2-hour warmup.)
Frequency
1 MHz.
Setability
±0.1 Hz.
Maximum Aging Rate
<1 ppm/mo (<7.5 ppm/yr).
Temperature Stability
±10 ppm, maximum, 0
°
to 40
°
C ambient.
EXTERNAL OSCILLATOR
Frequency
DC to 2 MHz.
Sensitivity
TTL or 2.5 V rms from 50 St source.
Protection
—5V peak to +10V peak.
RANGES-GATE INTERVAL
Manual
kHz - 1s, MHz - 10ms.
Auto
kHz
- 10s,
kHz
- 1s, MHz - 100ms or MHz - 10ms
(dependent on incoming signal).
GENERAL
Display Time
200ms plus Gate Interval.
Power Requirements
105-130V,
50/60
Hz,
25 watts maximum.
(210-260V,
50/60 Hz switch selected.)
Fuse:
125-volt Operation
250-volt Operation
1/4-ampere, 125V slow-blow.
1/8-ampere, 250V slow-blow.
Dimensions
2.75" high, 7.25" wide, and 10.5" deep (less handle).
(6.98 cm high, 18.4 cm wide, and 26.67 cm deep.)
Net Weight
5 lbs. (2.3 kgs.)
*
See Input curves Figures 1 and 2 on fold-out from Page 5. Specifications were obtained using a generator with 50 St source
impedance. This was connected to the counter with 50 St coaxial cable through a 50 St terminator (between cable and
counter).
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