Kenwood FC-757, Инструкция по эксплуатации, Страница: 19 / 40

5. O P E R A T I N G P R O C E D U R E S
E v e r y time when you s t a r t using the FC-757 M u l t i -
Functional universal counter, look a t the rear panel
and v e r i f y t h a t the power supply voltage selector
setting indicates the level of the supply voltage to
be a c t u a l l y applied.
1) Connect the accessory power cord w i t h the power
input connector (inlet) of the rear panel and
insert the A C plug into the nearby outlet.
2) Press the P O W E R s w i t c h ( m ) . T h e counter w i l l
be turned on.
3) When the counter is switched on w i t h a l l the
functional switches set to O F F , the L E D display
indicates ' 0 ' .
4) Read c a r e f u l l y Chapter 3 P R E C A U T I O N F O R U S E
(on page 7) to handle t h i s instrument correctly.
5-1 Frequency measurement
5 - 1 - 1 Frequency Measurement w i t h Channel A (5Hz
to 175MHz)
(1) Input a target signal (to be measured) to
C H A N N E L A input juck © .
(2) Select the F R E Q / A mode by using F U N C
s w i t c h @ .
(3) Select the measurement unit w i t h display unit
select s w i t c h @ .
If the display unit select s w i t c h is pressed
( - J M - ) ,
the measurement value w i l l be
displayed in M H z / m s . In t h i s case, display
unit L E D © w i l l be turned on.
If the s w i t c h is pressed again ( J U L ) , the
measurement value w i l l be displayed in
k H z / ^ s . In t h i s case, display unit L E D
(3)
w i l l be turned on.
Note : The m a x i m u m measurement frequency
in each display range v a r i e s depending
on the measurement modes. In the
k H z / ^ s measurement mode, up to
10MHz-frequency can be processed while
the m a x i m u m frequency t h a t can be
handled in the M H z / m s mode is 175MHz.
The proper range should be used accord-
ing to input signal frequencies w i t h
each range c h a r a c t e r i s t i c s f u l l y in mind.
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