TEST PROCEDURES
46882/439 7-13
Select 24.0 SPCL to enter selective power measurement mode.
Select 23.1 SPCL to set the LO to external.
(4) Set the signal generator to a carrier frequency of 470.455 MHz, RF level 0 dBm.
(5) On the measuring receiver:
Select 24.5 SPCL to establish the IF reference value (in volts).
Select 24.6 SPCL to set the reference to 0 dBm.
(6) Fine-tune the signal generator frequency until a maximum value is displayed on the
measuring receiver.
(7) Offset the signal generator by 20 kHz.
(8) On the measuring receiver:
Select 24.7 SPCL to normalize the measurement for a 1 Hz bandwidth.
(9) Measure the level on the receiver (the SSB phase noise in a 1 Hz bandwidth), checking that
the result is within the specification shown in Table 7-24.
(1
0) Repeat (2) to (9) for source B and, if Option 1 is fitted, source C.
RF leakage
Test procedure
UUT
2386/2380
Spectrum Analyser
and Display
Initial connection
Terminate with
50 loadΩ
Two turn loop
25 mm diameter
C3496
RF
INPUT
Fig. 7-7 RF leakage test set-up
(1) Press PRESET then CAL on the spectrum analyzer.
(2) Connect the test equipment as shown in Fig. 7-7.
(3) On the UUT set source A to:
[Carrier Freq] 469.03 [MHz]
[RF Level] −30 [dB]
(4) If using the 2386 Spectrum Analyzer select
REF FREQ 469.03 MHz
SPAN/DIV 10 Hz
PEAK FIND
MKR 1 SET REF FREQ
(5) Disconnect the cable from the UUT RF output socket and place a 25 mm 2-turn loop on the
end of the cable.
(6) Connect a 50 Ω sealed load to the UUT RF output.
To Next Page
Loading...
General