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r
f:
r
l
l
L
TTS 58AXPJ
Model
58BXPJ
b
.
WithREAD switchintheADJUST
FOR MINIMUM position, slowlv
adjust control
for minimum meter
readin~(~~·t.
<
1
~ , . -
,,_t./l,C(_,J;_(/~(/
~
/
t:J
/>-j=')
c
.
Place switch in the READ position
and readjust for minimum reading·
~
Read phase jitter in peak to peak
degrees directly
on meter
.
3
.
6
TO MEASURE PHASE SHIFT DUE
TO IMPULSE.
a
.
Patch cord between phase mea-
suring set TIP-RING binding posts
or
jack for
310
plug designated
OUTPUT and the LINE input of the
IMPULSE COUNTER (58B, 58BR,
TTS 58A,
etc.)
Section 3
c.
Set Model58B
front panel controls
as
follows:
1.
Turnbutton switch to MEAS.
position.
2.
Depress pushbuttons
for
600r.l
BRDG and BAL
XFMR.
3.
NETWORK switch
set
to
EXT
.
position.
4.
Set
BLANKING INTER VAL
for desired
count
rate, between
4 pps to 100 pps.
5.
Set SELECTOR switch to
Channel A
.
6
.
Set MIN
.
.
LEVEL control
(IMPULSE NOISE)
and
INCRE-
MENT control to sensitivity
corresponding to desired span
of
degrees to be measured.
(See Table
3-2)
b.
TTS 58A: Set front panel
controls
as follows:
3
.
7
Adjust for minimum reading
as
outlined in paragraph 3. 5 a
.
and
b
.
above
.
1
.
INPUT switch set to
60.0
r.l
2.
Place BRDG- TERM switch
to BRDG position
.
3
;
WTG switch set to EXT
position
4.
Connect strap bE;)tween IN
and OUT binding posts
5. Set channels A, B, and C
sensitivity controls and main
sensitivity control to
cover
desired span
of
degrees to be
measured. (See Table
3-1)
TABLE
3-1
Main Sens. Control
Channel
Sens.
Controls
70
70
70
Min. Level
(Impulse Noise dBrn)
70
70
70
70
c
B
A
10
6
0
TABLE
3-2
Increment
Thresh. Level
12
8
4
0
NOTE
:
Peak to peak phase
jitter
reading
on
meter must be
below the span
of
interest
.
when making
phase hits
measurements.
Channel Sens
.
Corresponding
Phase Hits
80
dBrn
76 dBrn
70 dBrn
Channel
Sens
.
D -82 dBrn
C-78 dBrn
B-74 dBrn
A-70 dBrn
Corresponding
Phase Hits
zo
0
12.5
0
80
5
0
3-3
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