STUDER REVOX C278 User Manual

=;TUDER
Rd/OX
c27g
I
In
trläy
mode
the
recorded
data
are
read
in and
displayed
alternately
with the corresponding
LED.
trlhile
the data
channel
reproduces
e.q-
the
time
and
date. the
TIHE or
the DATE
key
can
be
pressed
to
Ertppress
the
value
that
i= ncrt
of interest
so
that
e,g-
only
the time
is
disPlaved.
As
soon
as the
next
plav
conmand
täctiväted
within
play
or in
stop
mode)
i= entered!
both
values
ere
agäin
displayed.
Although
the
däta
are
recsrded
tHitre
Fer
second
in
order
to
imFrove
the
tränEmissic:n
reliability.
only the
first
value
ig
displayed
and
output
via
the serial
inter{ace
so
that
thä
displaY
r+ilI re=pond
as
quickly ä5
possible. Haximltm
data
integrity
i5 ächi.eved
only
a{ter
two
recorded
välues
have
been
read
and the
internal
errtrr
correction
system
häs
been
able
to
(]perate
sn
these.
If
no data
can be
reÄd
cErrectly!
the
values
are
interpolated
for a
short
time
after
which the
data
+eilure
is
signalled
t:n
the
di=play
with
"--
lelhen a
stop
i= initiated.
the
data
gelested
for
recording
are
again
displayed
iin
the
case
of the
counter
thi= would
be
the
reäL-tir.le
caunter.)
The last
values
read
from
t*pe can
be
recailed
on
ths di=plÄy
by
pre==ing
the
stop
key,
provided the
tape
hes not
advanced
Yet.
The readinq operÄtitrn
is only
performed in
C-TRACK
mode. However, it
is enabled
regardless
o+
the
output selector setting.
In sync mode the
deta are
read
froar
the
record
head.
FIMjl-*eE!-time--EsuDge...rl
If the lnächine in
play
mode detects
that the datä
relate to the
counter content,
the mechanically
implernented reel-time
counter is overuritten
r'rith
this value and
the tape is continuously
resynchr{]nized. For
this reeson there cannot
be two
di{ferent
counter contents,
either in record
or in
reprodutre ,node.
Note:
I+ the
counter
content
i.s modified
by the
recorded
cgunter
content,
the addreEE
locator
is
nt]t
retrotnFuted.
F"ean."q-h-i.n"e-,-q-...-t-n"p-e-..'L"e"s.'sJ.i.-o--n.-*
ldi.th
the SEARtrH
1111 key
and the
real-titne
counter
ytru
can
lscate a tape
eddreqs
baged
crn
the
recorded
time
or date.
The desired
value
is
entered
with SELECT
t8l end STEP
t9l e5
h,ae
dsne
when
the
data
were
stored, but
in=tead o{
storing,
the search
process
is
initiated u,ith
the SEARCH
1111
key-
The
tap=
advances
in spooling
mode
ts
a
position
that
is a
{er+ seconds
ahead
o+
the
desired
location.
The
exact location
is
then
approached
in
play
mode,
There are
two search
algorithms
that
can
be
rnsdified
via the
RS ?3?
inter+atre:
I
One
+or
cgntigucrus
time recording
and
r
Fne
+or non-ctrntiguou=
tine
recording.
The
defäutt
method
o+
the C?7A
is the
first
of
these
twe. In the
search
with
non-centiguous
time
recording,
the tape
location
is
gearched
in steps
that
become
smaller
and
smaller.
If
the
seerched location
does
not e!{ist
En
tapet
the
tape
stops at
the
start
of the
next
higher
valure
or at the end
of the
data
recordinq!
or
when
the
trÄnspärent
leader
is reached.
In the
5eär€h algorithm
for trBntiguous
recording:
the
locatisn
is
gearched
directly
by cornputing
the
di++erence bettdeen
the
start
address
and
the
targei
addre=g
which is
translated
into
a tape
length
via the reÄl-time
coltnter-.
I+
the
correct tape
location
is not
found,
a second
attempt
is made
so that a
tape Iocation
will
be
found
even i{ there
ere
small
gaFE
in
the
time
code,
cauged bv taFe
editing.
To
prevent
unthreadinq
of the
tape.
the transtrarent
leader
nust be sr-r*ficiently
long
5o
that
the
recorder
does not
overehsot
it
when decelerating
to a
stotr dLtring
the
goooling
{unction.
In
the
C27Et the search
bäsed on
the date
is
not
implemented
becauge this
would not
tneke much
sense.
given
the ma:rirnum recording
duration
of
abor:t 3
hours.
Searching for a
csde is not
{easible
because
the
data
chännel cannot be
read in spoolinq
mode.
The
{ollowing comrnänds or
feedbacks are
pcrssi.hle
via
this
inter{ace:
!
I
I
I
Data
recording on/of{,
Store
the data to be
recorded: time.
date.
code.
and counter content
Recall
the stored data
Data type to be
recorded: time
only, date
onlvt
code
only, counter EnIy!
(]r
any
trombination
o{
two of these.
Recalt the data
read from
tape
(valr-res
before
and after
erFor correctitrn)
Enter
the data based
on which
a tape
location
is
to be
gearched:
counter and
tirne.
Select
the search
algorithrn
{or contiguous
end
non-contiguou=
recording,

STUDER REVOX C278 Specifications

General

Brand	STUDER REVOX
Model	C278
Category	Measuring Instruments
Language	English