Panasonic RJ-3600 Service Manual page 13

v
ISPURIOUS
EMISSION CHECK
IINTEGRATED
CTRCUITS,TRANSTSTORS
AND
DIODES
D+t
D+o
Dr
+
Dr
s 1fi[
Dsz
.D
lCz
D:e
Deo
CONNECTION/CONDITION ADJUSTMENT REMARKS
Set transceiver in
receiving
condition. (Heter to fig.
22)
1) Connect
RF signal generator to spectrum
analyzer,
as shown in
Fig.
22
(al.
2) When the impedance of signal generator
output is
50
Q,
set signal
generator output to
56
dB (2
nW).
3) Confirm standard
level
on the spectrum
analyzer.
4) Then @nnect transceiver
to Spectrum
analyzer as shown in Fig.22
(b).
5) Conlirm that spurious emission should be less
than standard
level.
Note:
Do
not transmit while checklng receiving spurious.
f,
I
--
Spectrum analyzer
standard
level
Fundamental frequency
Set transceiver
in transmit-
ting condition.
(Refer to fig.
23)
'l
) Confirm that spurious should be rnore than
60 dB.
It
sll
^
I
(Transmission)
Spurious emission
Sisnal
I
?
Fundamental frequency
+
Harmonic
v
Dr
Dzs
Dic
Dzs Dzz
Dzt
(Fis.24)
RJ.3600
[E