Tektronix FG 5010 User Manual

Operating
Instructions -
FG 5010
restart the
generator
and
repeat the
burst
.
If desired
, the
burst can
be
triggered with the
manual
trigger
button .
Phase
Lock
Output
The
FG 5010 utilizes
Auto
Scanning Phase
Lock for this
mode of operation . The control circuit automatically
changes
frequency
ranges
until the
input
signal is
within
capture
range and
phase
lock
can
occur . The
instrument
will
automatically
lock
on any
toggling
input
of
sufficient
ampli
tude within the 20 Hz to 20 MHz range . When phase lock
has
occurred
, the
LOCK'D
indicator will
be illuminated
.
Modulated and Voltage Controlled Output
The FG 5010 output can be amplitude modulated ( AM ) ,
frequency modulated ( FM ) , or swept with a voltage applied
to the input connector ( VCF ) .
Amplitude Modulation ( AM ) - A modulating signal of ap
proximately 5 V
peak to peak
applied to the AM
INPUT con
nector will provide 100 % modulation of the output . It should
be noted that when AM is selected , with no input signal
applied , the amplitude of the output waveform is reduced by
50 % . This is done so that at 100 % modulation , the peak - to
peak
amplitude
of the output
will be as
selected
by the
operator
.
Frequency
Modulation ( FM ) - When
this function
is acti
vated , the output signal becomes the FM carrier . A modulat
ing signal applied to the input connector will deviate the
output
approximately 1 % per
volt .
Voltage Controlled Frequency ( VCF ) - The frequency of
any selected waveform can be swept within a range of
1000 : 1 by connecting a voltage source to the FM / VCF IN
PUT connector . The polarity of the VCF input signal deter
mines which direction the output will deviate from the
selected frequency . A positive going voltage increases the
2-10
frequency ,
while
a
negative going
voltage
decreases
the
fre
quency
.
The
amplitude
and
polarity of
the
input
voltage
can
be
selected within
a range
of +10 V
to -3 V
depending on
the
output
frequency
selected .
It
should
be
noted that ,
although the
FG
5010 is capable
of
three
decades of
sweep , the
full 1000 :
1 frequency
vari
ation
may
not be
possible . The
generator
can only
be
swept
to
the top
of its
normal
frequency
ranges . The
FG
5010 fre
quency
ranges
change
at 2
in
decade
steps
from
.02
Hz
through
20
MHz
.
When the VCF function is activated , the range within
which
the
selected output
frequency falls is
locked , which
sets
the upper
sweep limit . If for
instance
, 10
kHz ( which
falls within the 2 kHz to 20 kHz range ) is selected as the
output
frequency ,
the
generator can
only be
swept
up to
20
kHz . If a second
, or start ,
frequency is not
selected after
activating VCF , 10 kHz will be the assumed start frequency .
With sufficient positive voltage applied to the input connec
tor
, the
output will
sweep
between
10 kHz
and 20 kHz
. It
will take significantly less than 10 volts to accomplish this ,
resulting in
considerably
less than
a 1000
: 1 sweep .
The out
put can also be swept downward as far as a negative 3 volt
signal
will
take
it
.
A
second ,
or start ,
frequency can
be
selected after acti
vating the VCF function . Provided the two frequencies are
not more than three ranges apart , the output can be swept
between them . For example ; select 10 kHz ( 20 kHz is top of
range ) ,
activate VCF
, and
select 20
Hz .
Under
these condi
tions , with adequate positive voltage applied , the output will
sweep
between 20
Hz and 20
kHz , a full
three decades .
Since zero frequency can be selected , total external con
trol of the frequency capabilities of the FG 15010 is possi
ble
. The
generator can
be swept
between and
2 Hz
( 1000 : 1 ) with a positive 10 volt input signal .

Tektronix FG 5010 Specifications

General

Brand	Tektronix
Model	FG 5010
Category	Portable Generator
Language	English