Figure 1-50-2. Tektronix, Type DC 508, Frequency Counter.
Tektronix, Type DC 508, Frequency counter (fig. 1-50-2) measures from 10 Hz to 100 MHz in the direct input mode. The
prescaler input allows it to measure frequency from 75 MHz to 1 GHz. A nine-digit LED display shows frequency or
totalized events from 0 to 999,999,999. The decimal point is automatically positioned and leading zeros suppressed. The
RESOLN MULT X00 position provides two additional digits to the right of decimal point for additional resolution when
measuring frequencies below 25 kHz.