| {  "RF characteristics" : {  "Modulation" : "Wideband FM",  "Frequency ranges" : {  "A1" : "470 - 516 MHz",  "A" : "516 - 558 MHz",  "AS" : "520 - 558 MHz",  "G" : "566 - 608 MHz",  "GB" : "606 - 648 MHz",  "B" : "626 - 668 MHz",  "C" : "734 - 776 MHz",  "D" : "780 - 822 MHz",  "E" : "823 - 865 MHz",  "JB" : "806 - 810 MHz",  "K+" : "925 - 937.5 MHz",  "1G8" : "1785 - 1800 MHz"  },  "Receiving frequencies" : [  "Max. 1680 receiving frequencies, adjustable in 25 kHz steps",  "20 frequency banks, each with up to 12 factory-preset channels, no intermodulation",  "1 frequency bank with up to 12 programmable channels"  ],  "Switching bandwidth" : "up to 42 MHz",  "Nominal/peak deviation" : "±24 kHz / ±48 kHz",  "Receiver principle" : "True diversity",  "Sensitivity (with HDX, peak" : "< 2.5 μV for 52 dBA eff S/N",  "deviation)" : "",  "Adjacent channel selection" : "Typically = 65 dB",  "Intermodulation attenuation" : "Typically = 65 dB",  "Blocking" : "= 70 dB",  "Squelch" : {  "low" : "5 dBμV",  "middle" : "15 dBμV",  "high" : "25 dBμV"  },  "Pilot tone squelch" : "Can be switched off",  "Antenna inputs" : "2 BNC sockets"  },  "AF characteristics" : {  "Compander system" : "Sennheiser HDX",  "EQ presets (switchable, act on line and monitor outputs)" : {  "Preset 1" : "Flat",  "Preset 2" : "Low Cut (-3 dB at 180 Hz)",  "Preset 3" : "Low Cut/High Boost (-3 dB at 180 Hz, +6 dB at 10 kHz)",  "Preset 4" : "High Boost (+6 dB at 10 kHz)"  },  "Signal-to-noise ratio (1 mV, peak deviation)" : "= 110 dBA",  "Total harmonic distortion (THD)" : "= 0.9 %",  "AF output voltage (at peak deviation, 1 kHz AF)" : {  "6.3 mm jack socket" : {  "(unbalanced)" : "+12 dBu"  },  "XLR socket" : {  "(balanced)" : "+18 dBu"  }  },  "Setting range “AF Out”" : "48 dB (3 dB steps)"  },  "Overall device" : {  "Temperature range" : "-10 °C to +55 °C",  "Power supply" : "12 V DC",  "Current consumption" : "300 mA",  "Dimensions" : "Approx. 190 x 212 x 43 mm",  "Weight" : "Approx. 980 g"  }  } |