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参数资料
| 型号： | 2658A |
| 厂商： | B&K Precision |
| 文件页数： | 41/89页 |
| 文件大小： | 0K |
| 描述： | SPECT ANALYZER HANDHELD 8.5GHZ |
| 标准包装： | 1 |
| 系列： | 2658 |
| 类型： | 工作台/手持型 |
| 频率范围： | 50kHz ~ 8.5GHz |
| 放大（级别）范围： | -60 ~ +10dBm |
| 特点： | 自动微调，保存/载入，USB 端口 |
| 包括： | AC 适配器，电池，线缆，外壳，软件 |
| 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 |
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* Differing from base band at which the up-conversion of input frequency is done with a frequency mixer, the
spurious response peculiar to band 1- and band 1+ is generated because the down-conversion is done at those
two bands.
* About SPURIOUS FREE mode
1. SPURIOUS FREE mode is a mode by which the spurious response peculiarly caused at band
1+ is simply deleted.
2. SPURIOUS FREE mode is especially effective in the measurement of a stationary wave.
3. If SPURIOUS FREE mode is used in measurement of a signal with level change or frequency
change, the phenomenon that the level goes down will occur.
4. The noise level goes down a little in case of a noise changing at random. In short, the same
phenomenon as MIN HOLD function happens.
* How to judge SPURIOUS response at band 1- and band 1+
The procedure for judging SPURIOUS response at band 1- and band 1+ is as follows.
1. Set the center frequency to < (current setting value) + f >.
2. The spectrum shifting left by f is a correct spectrum, but another spectrum shifting such as left
by 2f, left by 3f, right by f, right by 2f or right by 3f is a spurious response.
* “f ” should be changed according to SPAN for easy judgment. For reference;
f = SPAN / (10 to 50) (corresponding to 0.2 to 1 div)
Example: judging a spectrum displayed at 6.92 GHz
(setting : center frequency 6.92 GHz and SPAN 500 MHz)
1. Set the center frequency to < 6.92 GHz + 500 MHz/25 > = 6.94GHz.
2. A spectrum at 6.92 GHz (shifting left by f from 6.94 GHz) is correct. A spectrum at 6.98 GHz (shifting
right by 2f from 6.94 GHz) is spurious.
* Additionally, a spurious response mentioned above shifting right by 2f at band 1+ is largest, and other
spurious response are about 25 to 50 dB smaller than that.
17. Marker & Peak Search <MKR>
When
MKR
is pushed, the following function menu is displayed.
● Main menu of marker function
MARKER
CENTER FREQ
CONV
NORMAL
F1
DELTA
F2
OFF
F3
NORMAL
F4
ZONE
F5
dBm → W
F6
35
相关PDF资料 |
PDF描述 |
|---|---|
| 2658 | SPECT ANALYZER HANDHELD 8.5GHZ |
| 265 | DIGITAL CLAMP W/CAPACITANCE/FREQ |
| 2707437 | CONN DIN RAIL FOR TRANS 5POS |
| 2708203 | ANALOG MODEM 3-WAY 24V DIN |
| 270 | CLAMP-ON TESTER W/DMM |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 2658C | 制造商:未知厂家 制造商全称:未知厂家 功能描述: |
| 2659 | 制造商:PRO POWER (FORMERLY FROM VOLTREX) 功能描述:CARD EDGE CONNECTOR; Accessory Type:Card Guide; For Use With:-; Guide Width:6.4mm; Guide Length:63.5mm; Connector Type:Card Edge ;RoHS Compliant: Yes |
| 2659/19 | 制造商:DURABLE OFFICE PRODUCTS 功能描述:POCKETS A4 PUNCHED 100PK 制造商:DURABLE OFFICE PRODUCTS 功能描述:POCKETS, A4, PUNCHED, 100PK |
| 26590 | 功能描述:螺丝刀、螺母起子和套筒扳手 NUTDRIVER 8PC SET-mm RoHS:否 制造商:Wiha 产品: 类型:Wiha Magic Ring Ball End Hex Keys 大小: |
| 265908-000 | 制造商:TE Connectivity 功能描述:81044/9-14-0 - Cable Rools/Shrink Tubing |
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