Marconi Instruments 2955 - Page 64

OPERATION
TABLE
3-2a
ERROR
CODES
FOR TEST
1
:
CHECK
RF
COUNTER
AGAINSTSiG.
GEN.
FREQUENCY
1
CODE
(hex.)
10
-
Test
passed
11
-
FREQ
0*
fails
-
HIGH FREQ
(>50
Hz
above
set
frequency;
12
-
FREQ 0 fails
-
LOW FREQ
(
>50 Hz
below set
frequency
)
13
-
FREQ
I fails
-
HIGH
FREQ
14
-
FREQ
1
fails
--
LOW FREQ
15
^
FREQ 2 fails
"
HIGH FREQ
16
-
FREQ 2 fails
-
LOW
FREQ
17
-
FREQ 3 tails
~
HIGHFREQ
18
--
FREQ 3 fails
-
LOW FREQ
19
-
FREQ
4
fails
-
kighfreq"^
IA‘-
FREQ
4
fails
-
LOW
FREQ
IB
-
Frequency
read
fails
FREQO
=
20 MHz (sig, gen.
mixed range)
FREQ 2
=
21S
MHz
(sig,
gen.
oscillator
1)
FREQ 1
=
111 MHz (sig. gen.
divided
range)
FREQ 3
-
340 MHz
(sig. gen.
oscillator
FREQ
4
~
480 MHz
(sig.
gen.
oscillator
TABLE
3-2b
ERROR
COOES FOR TEST2: CHECK
RF
POWER METER
AGAINST
SIG. GEN.
CODE
(hex.)
20 Test
passed
21
-
FREQ
U-.
-
fails
22
-
FREQ
0
fails
23
-
FREQ
! fails
24
-
FREQ
1
fails
25
-
FREQ
2 fails
26
-
FREQ
2 fails
27
~
FREQ
3 fails
28
™
FREQ
3 fails
-
LOW
POWER
02
uB
below
set
level)
~
HIGH POWER 02
dB
above set
level)
-
LOW
POWER
-
HIGH POWER
LOWPOW'ER
^
high
POWER
LOW POWER
-
HIGH POWER
Sig.
gen.
Power
meter
sorting
reading
FREOn
=
300
MHz
0.25
mW
79 mW'
FREO 1
—
N49MHz
0.25
mW
79
mW
FRE0
2
~
20
MHz
0.25
mW
79 mW
FREO
3
=
20 MHz
0.
1
25
mW
dO
mW
Note...
The
difference
in
setting
and
reading
is
due to
1
port
dupie.x
selection
for
the
test.
3-40
46881-622N
Apr,
88
C.J
to