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.
A block quote is similar to a direct quote except that it is four or more lines in length. When a quote becomes four or more lines in length in your essay, the quote should be set off from your text (see the example below). MLA conventions state that the block quote should be double-spaced and indented ten spaces from the margin. Also, the period that is usually placed after the parentheses is omitted.