freq meter vs. spectrum analyzer for sweeping

[A. Melon]

bob said:

>You need a spectrum analyzer, which shows you signal strength vs.
>frequency.
>
>And you need to worry about intermittent ('burst') bugs.
>
>And WTF is an 'infinity' transmitter?

  Umm, all the stuff being sold for counter surveillance are frequency
counters of one sort or another.  
   Infinity transmitter? I guess you don't know much about bugs
if you don't know that -- try a web search on the term.