EZ Digital FG-7005C Operation Manual - page 19
may be easier to set to the desired frequencies if the dial setting is 0.5 or higher.
3-10. Use As Externally Controlled Sweep Generator
A ramp voltage, or any other type waveform desired, can be applied for externally
controlled sweep generator operation. 0 to 10 volt swing will sweep frequencies
over a 100:1 ratio(with dial set to 0.05) Set up the instrument as described for
internally controlled sweep generator operation, except turn the SWEEP WIDTH
control to OFF. Apply the sweep voltage with no DC component at the VCF Input
BNC. Set the FREQ. dial to the highest frequency to be swept and apply a
negative-going ramp voltage.
3-11. Use As External Frequency Counter
3-11-1. USE AS EXTERNAL FREQUENCY COUNTER
A. EXTERNAL AND INTERNAL COUNTER SELECTION
This instrument can be used as a counter by Push-in of INT/EXT selection switch.
B. EXT COUNT IN BNC accepts external frequency input.
C. COUNTER DISPLAY
Input frequency is displayed with high resolution on a 6 digit LED display.
D. mHz, Hz, KHz, MHz INDICATOR
mHz, Hz, KHz, MHz indicators & decimal points display the max. 50 MHz of
external frequency.
E. PUSHED-IN FREQ.RANGE S.W X1.
F. When there is no input signal, the most current data is displayed. And when the
new signal has entered, the display will show updated data.
CAUTION
1. APPLICATION OF INPUT VOLTAGES HIGHER THAN THE LIMITS LISTED IN
THE SPECIFICATIONS SECTION MAY DAMAGE THE COUNTER. BEFORE
APPLYING ANY SIGNAL TO THE INPUTS, MAKE CERTAIN THAT IT DOES NOT
EXCEED THESE SPECIFIED MAXIMUMS.
2. FREQUENCY COUNTER GROUND POINTS ARE CONNECTED DIRECTLY TO
EARTH GROUND. ALWAYS CONNECT FREQUENCY COUNTER GROUND
ONLY TO GROUND POINTS IN THE CIRCUIT UNDER TES