Gw Instek GSP-830Spectrum analyzer, spectrum analyzerBandwidth (RBW) 3/30/300 kHz/4 MHz GSP-830 数据表
产品代码
GSP-830
AMPLITUDE
57
Set Input Impedance
Select input impedance (50Ω/75Ω)
Background
In most cases, the default 50Ω is appropriate. Use 75Ω
when specifically required, such as in cable TV signals.
when specifically required, such as in cable TV signals.
1. Press the Amplitude key.
Amplitude
2. Press F6 (More).
More
F 6
Panel operation
3. Press F1 (Input Z 50Ω/75Ω) to
select the impedance.
4. When 75Ω is selected, the
amplitude icon appears at the
bottom of the display.
bottom of the display.
Set impedance offset (75Ω only)
Background
Impedance transformation to 75 Ω is also available
through external devices such as impedance converter
module (optional accessory ADP-101). In these cases an
external loss will be induced. Impedance offset can
compensate this effect.
through external devices such as impedance converter
module (optional accessory ADP-101). In these cases an
external loss will be induced. Impedance offset can
compensate this effect.
1. Press the Amplitude key.
Amplitude
2. Press F6 (More).
More
F 6
Panel operation
3. Make sure 75Ω is selected in F1
(Input Z).
4. Press F2 (Input Z Cal).
Input Z Cal
5.9dB
F 2
5. Enter the offset using the
Numerical keys and dB or Enter
key.
key.
BK SP
dB
Enter
GHz /
Sec
mSec
MHz /
kHz /
Sec
μ
Range
−10dB to +10dB, 0.1dB resolution