Fluke 6060B - Harmonic and Spurious Test

MAINTENANCE
PERFORMANCE TESTS
f.
Set the Measuring Receiver to make relative level measurements to the
-107
dBm signal
applied.
g.
Disconnect
the sensor from the OUT, and terminate the
UUT
RF OUTPUT
with the
Type-N Termination.
h. Connect the
two-turn
loop to the
Measuring
Receiver
sensor,
i. Program
the UUT
to
+13
dBm.
j.
Verify
the instrument leakage is less than
-107
dBm
(1
fxV)
as indicated by the
Measuring Receiver by moving the Two-Turn Loop over the UUT
surface
at a
distance of
one inch from the UUT.
k. Repeat steps d through
j
at 550 MHz, 850 MHz, and 1050 MHz.
4A-11. HARMONIC
AND
SPURIOUS TEST
Using a spectrum Analyzer, the level of the harmonic and
spurious
signals are compared
to the desired signal at various programmed frequencies.
REQUIREMENTS
RF
harmonics
<-30
dBc; spurious
(non-harmonic)
<-60
dBc for offsets
>10
kHz,
frequency
>
OJMHz.
TEST
EQUIPMENT
RF Spectrum
Analyzer
PROCEDURE
a. Connect the
UUT
RF OUTPUT to the Spectrum Analyzer
input.
b.
Program the UUT to
[RCL]
[9][8].
Then program the Generator to
+13
dBm.
c.
program the UUT to 0.4
MHz.
d. Set the
Spectrum
Analyzer controls to display the UUT
output signal and its
harmonics (at least
three harmonics wherever possible). Be
careful not to
overload the Analyzer
input. Overloading the Analyzer causes it
to generate
harmonics, thus invalidating the
test.
e. Verify
that
all the harmonics are more than 30 dB below
the fundamental signal.
f.
Repeat steps c through
e for
UUT
frequencies of 50 MHz, 240
MHz,
300
MHz,
500
MHz, and 750 MHz.
g.
Program
the UUT to 185 MHz.
h. Verify the
spur at 245 MHz is <
-60
dBc.
i. Program the
UUT
to 244 MHz.
j.
Verify the spur
at
312 MHz is
<
-60
dBc.
k.
Program
the UUT to 244.99 MHz, 0 dBm.
4A-11