Kenwood FC-758 Instruction Manual page 12

Note : The m a x i m u m frequency to be handled in
t h i s measurement mode is 100MHz. The proper
range should be used according to input
frequencies w i t h each range characteristics f u l l y
in mind.
c. C H B / 1 . 3 G H z (frequency prescale) mode
The C H B / O G H z mode is an operational mode
in which t h i s product measures the frequencies of
input signals to channel B and outputs them to
the display section. They are displayed in
MegaHerz ( M H z ) .
A desired resolution value can be selected w i t h
G A T E s w i t c h © .
d. PER/0.3j«s ( P E R I O D )
The P E R / 0 . 3 / * s mode is an operational mode in
which t h i s product measures the cycle times of
input signals to channel A and then outputs
them to the display section. They are displayed
in microseconds.
A desired resolution value can be selected w i t h
G A T E s w i t c h © .
e. T O T A L / 1 0 M H z (event input t o t a l count)
The T O T A L / 1 0 MHz mode is an operational mode
mode
mode
in which t h i s product counts the number of
channel A input cycles and then outputs each
count value to the display continuously.
T h i s cycle count and display operations can be
externally controlled w i t h the gate signal input
to the T O T A L I Z E I N P U T S T A R T / S T O P
juck on the rear panel or the H O L D s w i t c h
on the f r o n t panel,
f. C H E C K / 1 0 M H z Mode
The C H E C K / 1 0 M H z mode is an operational mode
in which t h i s frequency counter checks internal
functions. If this s e l f - c h e c k mode is selected, the
frequency of the internal time base t i m e r ( 1 0 M H z )
w i l l be displayed by the 8—digit 7-segment L E D s .
Look a t the display value to see if t h i s product
operates n o r m a l l y or not.
A desired resolution value can be selected w i t h
G A T E s w i t c h @ .
@ G A T E S w i t c h / G A T E L E D
The G A T E s w i t c h is provided to select a desired
display resolution value f o r the period mode
( P E R / 0 . 3 u s ) or the frequency mode ( M H z / 1 0 0 M H z ,
k H z / 1 0 M H z , or C H B / 1 . 3 G H z ) s t a r t e d by F U N C
input