Tektronix 2247A

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my
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my
Operators Familiarization
If DELAY Is selected, the C/T is used to measure the time Intervals, as
explained above for ALT horlzontal mode (except that no Intensified
zones are displayed in B horizontal mode). The k- OR DELAY control
knob positions both delay times (reference and delta) together, and
the -4 control knob positions the Independent delta delay.
If
horizontal
mode
Is
changed
from
B
back
to
ALT
when
Cursor
Knob
Allocation
menu
2
Is
displayed,
this
menu
will
disappear,
and
the
measurement
will
continue,
using
the
C/T
to
make
the
measurement.
The
following
error
messages
are
possible
for
|
SEC
1,
l-
1/SEC
+4,
and
|-
PHASE
-4,
In
the
modes
where
the
C/T
Is
used:
Message Reason
NO A SWEEP No A sweep was detected after timeout
{ALT or B Horizontal MODE).
NO
B
SWEEP
No
B
sweeps
were
detected
at
all
(ALT
or
B
Horizontal
MODE).
NO
B
TRIG
No
triggered
B
delay
sweep
was
detected
(ALT
or
B
Horlzontal
MODE).
NOBATAIG
No
triggered
B
delta
sweep
was
detected
(ALT
or
B
Horizontal
MODE).
NO
A
TRIG
No
A
trigger
detected
after
timeout
(PHASE
in
A
Horizontal
MODE
with
360°
tracking
enabled)
.
>10GHz
1/delta
time
value
greater
than
10
gigahertz.
<0.01Hz
1/delta
time
value
less
than
0.01
hertz
(timeout
disabled).
>100s
Delta
time
value
greater
than
100
seconds
(timeout
disabled)
.
A
PER
>100s
A
trigger
perlod
greater
than
100
seconds
(PHASE
with
360°
tracking
enabled,
timeout
disabled).
2247A Operators 3-19