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 MLA (Modern Language Association) style of writing requires you to cite the name of the author and the page number when citing quotes in essays. If you're citing poetry, then you'll have to cite the lines of poetry instead of page numbers. Unlike in APA style, you do not have to provide the year the quote was written in the actual body of your essay, though you will need to do so in a detailed references page at the bottom of your essay.