GW Instek GSP-810 User Manual - Manual (Page 16)

GSP-810 User Manual
14
SPAN
This field is the value for the frequency range covered by the GSP-810 as it
sweeps its receiver. This span value may be changed by the SPINNER to roll
through the list of valid spans.
The range of valid entries is 2 kHz / division through 100 MHz / division plus zero
span (0 Hz / div). If changing SPAN will cause Center Frequency to change, the
“Limt” message will appear on LCD. It means that the SPAN has exceeded the
frequency range for Center Frequency setting. For example, if the Center
Frequency is 25MHz and the Span is changed from 5MHz to 10MHz, a “Limt” will
appear because the start frequency of span has exceeded the frequency range of
GSP810.
CENTER
SPAN
RBW
7 8
.
6
SHIFT
PK->MKR
MKR->CF
SETUP
TRACE
MKR
MKR
E
N
T
E
R
MHz
dBm 4 5
2 1
0
3
9
-
SPAN
CENTER
REF LVL
DEMOD
MEM
TRK GEN
RBW
PWR MTR .
500.000MHz 20 dBm
100MHz/div 4 MHz
500.000MHz 20 dBm
100MHz/div 4 MHz