It's just a signal generator, an AC voltmeter, and a phase meter, gussied up with attenuators and digital displays. They're usually VERY expensive as you want the network analyzer to be perfectly flat in amplitude and phase, which takes a lit of very precise analog electronics and tuning to do.
Two, you should always insert quotation marks at the beginning and at the end of your quote to indicate that the sentence in your paragraph is borrowed from another source. 1  Examples: 2  You may also want to read how to quote in an essay, or how to quote in APA, or how to quote in MLA.
The first reference you cite will be numbered 1 in the text, and the second reference you cite will be numbered 2, and so on. If you cite reference number 1 again later in the text, you will cite it using the number 1. References are listed in numerical order in a bibliography at the end of your essay. The references in the bibliography must follow a set format: there are examples of this below.