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参数资料
型号： 2650
厂商： B&K Precision
文件页数： 71/75页
文件大小： 0K
描述： SPECTRUM ANALYZER 3.3GHZ HANDHLD
标准包装： 1
系列： 2650
类型： 工作台/手持型
频率范围： 50kHz ~ 3.3GHz
放大（级别）范围： -60 ~ +10dBm
特点： 自动微调，RS232 端口，保存/载入
包括： 电池，电源，袋
相关产品： MB400-ND - BATTERY FOR 2650A/2652A/2658A
MA400-ND - ADAPTER 120V 60HZ AC FOR 2650A
LC2650A-ND - CARRY CASE FOR 2650A/2652A/2658A
M406-ND - ANTENNA DIPOLE 4.7 TO 6.2 GHZ
M405-ND - ANTENNA DIPOLE 300 TO 500 MHZ
M404-ND - ANTENNA DIPOLE 2.25 TO 2.65 GHZ
M403-ND - ANTENNA DIPOLE 1.7 TO 2.2 GHZ
M402-ND - ANTENNA DIPOLE 1.25 TO 1.65 GHZ
M401-ND - ANTENNA DIPOLE 0.8 TO 1.0 GHZ
其它名称： BK2650
25.4 The display accuracy of the frequency span
Adjust the frequency of the calibration equipment so that the peaks are at the positions of f 1 and f 9 , and
measure the frequencies of f 1 and f 9 . Calculate from f 1 and f 9 the display accuracy of the frequency span.
Setting of 2650
f 1
f 9
(f 9 - f 1 )
Frequency span
Center
Frequency
RBW
Specifications
Measurement Measurement
value value
×
1.25
Judgment
200kHz 100MHz
10MHz 100MHz
20MHz 100MHz
200MHz 100MHz
500MHz 1GHz
2GHz 1GHz
FULL(3.3GHz) 1.65GHz
3kHz
100kHz
300kHz
3MHz
3MHz
3MHz
3MHz
within ±26kHz ±1dot
within ±320kHz ±1dot
within ±0.8NHz ±1dot
within ±6.2MHz ±1dot
within ±15.2MHz ±1dot
within ±60.2MHz ±1dot
within ±99.2MHz ±1dot
* f 1 : 1st div from the left on the trace screen f 9 : 9th div from the left on the trace screen
· Setting of 2650
· Setting of calibration unit
Reference level
VBW
:
:
-15dBm
AUTO
Frequency
:
Adjust it to the positions of f 1
and f 9 .
Sweep time
Detection mode
Display scale
:
:
:
1s
SMPL
2dB/div
Output power :
-15dBm
25.5 Linearity of the amplitude axis
Adjust the level of the calibration unit so that the peak is at the top of the amplitude axis (0th div), and
regard the point set at that time as the reference. Gradually lower the output, starting from the reference,
and measure the amplitude value of 2650 .
Setting of 2650
Display scales
10dB/div
Output of calibration unit
X dBm (adjust it to the 0th div)
X -10dBm
Specifications
Reference(-15dBm)
Within -25dBm±0.8dB±1dot
Measurement value
(-15dBm)
Judgment
X -70dBm
Within -85dBm±1.6dB±1dot
X dBm (adjust it to the 0th div)
Reference(-15dBm)
(-15dBm)
2dB/div
X -2dB
Within -17dBm±0.2dB±1dot
· Setting of 2650
X -10dB
Within -25dBm±0.8dB±1dot
· Setting of calibration unit
Center frequency
:
100MHz
Frequency
:
100MHz
Reference level
Frequency span
RBW
VBW
Sweep time
Detection mode
:
:
:
:
:
-15dBm
10MHZ
3MHz
1MHz
1s
SMPL
– 65 –
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