• selective frequency selection
• easy to operate
• calibrated measured values
• connected between antenna and measuring device

The multi-frequency filter MFF-1 enables a selective measuring of individual frequency ranges used for mobile radio and data transfer. There are five switch positions: D-network, E-network, DECT, UMTS, WLAN/bluetooth and broadband (all frequencies).

MultiFrequenzFilter MFF-1 is simply connected between the measuring antenna and the HF measuring device (HFR-1, HFR-2, PDM, etc.). Simply change over in order to select the individual frequency ranges.

The pass-band attenuation of all filters is set to approx. 6dB. When MFF-1 is used, the displayed measured values of a field strength meter (V/m) have to be doubled. When a power flux density meter (W/m²) is connected, the displayed value has to be quadrupled.

Technical Data MFF-1

Ranges of measurement :

• Allpass
• D-Netz 935-960 MHz
• E-Netz 1805-1880 MHz
• DECT 1880-1900 MHz
• UMTS 2110-2170 MHz
• WLAN, microwave oven, Bluetooth 2400-2500MHz

Measurements:

• ca. 165mm x 80mm x 35mm

Weight:

• ca. 320 g

Power supply:

• 9 V E Block