We all rely on Blind Faith, Educated Guesses & Intuition when setting-up, installing or Spec'ing wireless systems. What if you could completely eliminate the unknown and unseen factors? Introducing the Spectran HF4040, the world's first low-cost, handheld field spectrum analyzer which eliminates all of the guess work. The Spectran HF4040 is a true 10MHz to 4GHZ spectrum analyzer allowing you to view all RF activity and potential interference in the wireless bands. No more Channel Selection Guessing! No more Frequency Allocations Charts! No more RF Ambushing!And unlike RF Scanners, which allow for missed intermittent interference, the Spectran HF4040 is a true RF Spectrum Analyzer displaying all RF activity in the spectrum. So whether you are using wireless in a touring or industrial audio production, installing wireless in a church, corporate auditorium, or theater, or setting up 2.4GHz computer and remote control networks, as a professional you no longer need to rely solely on Blind Faith. Attention Wireless Microphone Users Many wireless users are getting "squeezed-out" with the FCC's UHF band reallocation and the Digital Television (DTV) UHF mandate, plus the prevalence of the Wi-Fi bands. Finding interference free channels can be a challenge and will only become more challenging as time goes on. The Spectran HF4040 is certainly an investment that will pay for itself time & time again! Blind Faith, Educated Guesses & Intuition are a thing of the past with the New Spectran HF4040 - the World's First Low Cost, RF Field Spectrum Analyzer!