Kenwood FC-757 Instruction Manual page 10

© Display ( L E D )
The display consists of eight-digit
indicating a l l the current measurement value.
© O V E R F L O W Indicator ( L E D )
• The O V E R F L O W
the user t h a t an overflow
© C H A N N E L B (5Hz to 2 M H z ) Input
The C H A N N E L B input juck is provided
allow object signals to enter the
T h i s juck is used for
ment and time
The C H A N N E L B input juck is a B N C connector
terminated w i t h a resistor of
The m a x i m u m
© A T T x 10 S w i t c h
The A T T (enuation) x 10 switch is provided
enable the internal
operation.
If this switch is pressed ( x 10), the input
signal to channel B is attenuated
then reaches the counter.
If this switch is pressed again ( x 1 ) , the input
signal to channel B reaches the counter
10
L E D s
L E D is provided to
has occurred.
j c k
U
counter.
frequency r a t i o measure-
interval measurement.
1.2megaohm.
input voltage is 125Vrms.
A T T e n u a t o r circuit
into 1/10 and
attenuatjon.
Note t h a t t h i s s w i t c h can work together
channel B only but does not affect channel A .
© - S L O P E
notify The - S L O P E switch is provided to permit
user to select positive-going
going edge of the C H A N N E L
to chronization.
If t h i s s w i t c h is pressed ( m ) ,
edge w i l l
If this switch is pressed again ( J U L ) ,
going edge w i l l
© C H A N N E L A (5Hz to
The C H A N N E L A input juck is provided to
signals to be input to the counter for
to measurement and
In the frequency r a t i o measurement mode, the
r a t i o between the C H A N N E L B inputs and the
C H A N N E L A
In the time
difference in time
inputs and the C H A N N E L A
w i t h o u t
The C H A N N E L A
S w i t c h
edge or negative-
B signal for s y n -
negative-going
be selected for synchronization.
be selected for synchronization.
175MHz) Input
period measurement.
inputs is measured.
interval measurement mode, the
between the C H A N N E L B
inputs is measured.
input juck is a B N C connector
w i t h
the
positive-
juck
allow
frequency