The HF58 is a low expense and expert high frequency broadband measurement technology Its functions and functions are tailored to the requirements and useful experiences of the structure biology. More Features: -A quantitative differentiation between pulsed and un-pulsed radiation - an unique function within the broadband determining technology (based on our patent DE10317805) -A NiMH battery, a battery charger and a power supply unit inclusive -An Air Conditioner- and a DC-output (Air Conditioner: demodulated signal) -LEDs keeping an eye on the function of the antenna -Sensing unit: Optimised logarithmic periodic antenna: Less ripple, much better directionality, enhanced shielding vs. ground -Audio Analysis: Identification of pulsed radiation sources (mobile radio (GSM, UMTS/G3), cordless telephones (DECT), WLAN (Bluetooth), air-traffic control-radar) by methods of an acoustic signal proportional to the modulation frequency -Signal Score: Show of peak value, peak hold along with average value (switchable) A quantitative differentiation between pulsed and un-pulsed radiation - an unique function within the broadband determining technology.