Rohde & Schwarz 1125.5555.02, Руководство по эксплуатации

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External Modulation Source AMIQ SMIQ
1125.5555.03 2.366 E-9
CLOCK Sets a clock rate, at which samples can be read out of the output buffer and
transferred to the output connectors I and Q via the D/A converters.
Range: 5 MHz to 200 MHz
CLOCK SOURCE
Selection of the clock signal source (model AMIQ03 or higher).
INT The internal clock is used. This is the standard setting present
upon switching on the unit or changing the clock.
EXT_SLOW For external clock < 4 MHz
EXT_FAST For external clock > 2 MHz
OUTPUT
RESOLUTION
Output resolution of the signal. The resolution set for output cannot be higher
than for waveform generation.
BIT ERROR RATE
TEST This menu enables configuration and performance of BER measurement.
SAVE/RE
SELECT
MODE
EXECUTE
EXT TRI
FILTER
LEVEL..
MARKER.
REFEREN
BIT ERR
FREQ
100. 000 000 0
MHz L EV E L
- 30.0
d Bm
F RE Q UE N CY
L EV E L
A NA L OG MO D
V EC T OR MO D
D IG I TA L M O D
D IG I TA L S T D
A MI Q C T RL
L F O UT P UT
S WE E P
L IS T
M EM SE Q
BIT ERROR RATE (BER) 2.3
DATA BITS 10000000
ERRORS 23
TERMINATED BY NUMBER OF DATA BITS
_______________________________________________________
MODE OFF AUTO SINGLE
EXECUTE SINGLE
TERMINATION ATTRIBUTES
DATA BITS 10000000
ERRORS 100
PRBS 9 11 15 20 23 Bit
DATA POLARITY NORM INV
CLOCK SLOPE POS NEG
MASK POLARITY OFF LOW HIGH
UNIT OFF % ppm
Fig. 2-233 Menu AMIQ CTRL – BIT ERROR RATE TEST...
(BIT ERROR RATE
TEST...) BIT ERROR RATE
(BER) Cyclical indication of the BER measured, ie the ratio
of errors occurred to the number of data bits
transmitted.
DATA BITS
Number of data bits transmitted so far.
ERRORS Number of errors occurred so far.
TERMINATED BY The cause of the indicated measurement result is:
NUMBER OF DATA BITS The specified number of
data bits has been
attained.
NUMBER OF ERRORS The specified number of
errors has been detected.
USER User's manual interruption
of the measurement
---- Measurement in progress