DC504

Tektronix DC504A
100 MHz frequency counter Tektronix DC504A Produced from 1975 to 1993 Manuals Tektronix DC504 Manual (OCR, PDF) Tektronix DC504A Manual (OCR, PDF) (All manuals in PDF format unless noted otherwise)

The Tektronix DC504A is a 100 MHz frequency counter plug-in for the TM500 system.

Specifications

5 Digit LED Display
Frequency Range
- DC coupled: 0 Hz to at least 80 MHz
- AC coupled: 10 Hz to at least 80 MHz
Sensitivity (sine wave):
- 20 mV RMS (56,6 mV_pp) below 15 MHz
- 35 mV RMS (99 mV_pp) at or below 50 MHz
- 35 mV RMS @ 50 MHz derated down to 175 mV RMS (495 mV_pp) @80 MHz
Input impedance: 1 MΩ; 20 pF
Trigger Level Range: -1,5V to +1,5 V
Maximum Resolution
- Frequency kHz Positions: 0,1 Hz; 1 Hz and 10 Hz (Seven digit resolution possible in overflow kHz position)
- Frequency MHz Positions: 100 Hz and 1 kHz (Nine digit resolution possible in overflow kHz position)
- Period msec Positions: 1µs and 10 µs
- Period sec Positions: 10 ms; 1ms and 0,1 ms
Trigger Error: 0,5% of one cycle at min, trigger sensitivity
Internal Standard Time Base (1 MHz)
- Stability: 0°C to +50°C after 30 min warm up: 1E-5
- Long Term Drift: 1E-5 per month
- Accuracy: Adjustable to within 1E-7
Internal Time Base Option 1 (5 MHz)
- Stability: 0°C to +50°C after 30 min warm up: eE-7
- Long Term Drift: 1E-7 per month
- Accuracy: Adjustable to within 5E-9
Display Time: Variable ~0,1 sec ... ~10 sec and HOLD mode