Considering that most people on this site are scanner owners/listeners; I think it is only appropriate to mention that the Signal Stalker (II) feature of the PRO-97 scanner is essentially a frequency counter. Now if you are tweaking the local oscillators of receivers it is not what you want, but if you're tring to measure something being broadcast it might fit the bill better than some traditional model. Price .. $200 normally, $150 on sale or even less used.