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.
Write the quote within quotation marks. If you are quoting someone else, you must write it correctly word for word. Place the author's name at the end of the quote followed by a comma followed by the date and the page number of the publication -- surround all this with brackets. Example: to evaluate performance 'a simple questionnaire can reveal a lot about what your customers think' (Morrison, 2011:23).