隔离，这是抗干扰的主要措施。PLC的输人、输出接口电路一般采用光电耦合器来传递信号。这种光电隔离措施，使外部电路与内部电路之间避免了电的联系，可有效地抑制外部干扰源对PLC的影响，同时防止外部高电压串人，从而减少故障和误动作。
Anritsu MT8802A/07 Radio Com & 3 GHz Spectrum Analyzer
ANRITSU MT8212B CELL MASTER TEST SET-NEW IN BOX
SPECTRUM/NETWO?RK ANALYZER/CABLE?/TEST/POWER METER
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Anritsu/ Nettest CMA4000 w/ CMA 4425 Single-mode OTDR
inc; CMA 4425 1310/1550 SM module w/ Power Meter & VFL
Wiltron Anritsu 3620-D-15825 Microwave Coupler .5-40GHz
One-day shipping available
Anritsu ICN50 InstaCal Calibration Module
ANRITSU MT-8802A WIRELESS COMMUNICATION TEST SET
CDMA/GSM/TDMA/?SPECTRUM ANALYZER 900/1800/1900/?2100MHZ
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Anritsu MS2711A handheld Spectrum Analyzer 100kHz-3GHz
Anritsu MS8604A/03/13 Digital Radio T/S 100Hz-8.5GHz
MINT Anritsu 15NNF50-1.5C RF Test Cable Site Master
One-day shipping available
Wiltron / Anritsu 37211B 3 GHz Vector Network Analyzer
Unit Tested and Guaranteed Functional w/ ROR!
Anritsu MP721B Attenuator 6dB DC-12.4GHz 2W Fixed
ANRITSU MS2721A SPECTRUM ANALYZER 300KHZ-7.1GHZ
TESTED AND CALIBRATED WITH 90 DAY WARRANTY
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