The Protec doesn't seem to have the resolution you desire, and the specs on the Tenma don't seem to say what the sweep resolutions are, but the other three are suitable for your broadcast, notch tuning needs. As recall field strength is frequency dependent when related back to the power in dBm. Seems like it's expressed in micro-volts/meter (uV/m) and/or in dBuV/m. I have locals 7 miles away that 'swamp' my amp that are 'killing' desired reception of stations 55 miles away no less in the same direction. I probably considered this more 'hobby' use, but for the pratical side and how it relates to this forum is for tuning channel traps to reduce overload from local transmitters without impacting 'desired' signals. Originally Posted by videobruce This is a tough question since because of the difficulty of describing exactly what I want to accomplish and how I would use the device. I just don't know if that Protek 3290 would fit the bill, being a 'different' (cheaper) type of analyzer. It's really more than I wanted to spend, but obviously, the 37XP is the best of this bunch and the most expensive. The B&K seems to be the most limited in features of the true 'Spectrum' Analyzers (also considering it's age) and while the AVCOM 65C is popular in the 2-way communications field, but a few hundred more gets you the newer and full coverage LCD screen 37XP. The AVCOM 65c, the Protek 3201 and the B&K 2630 are the oldest.
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