User manual VAISALA RM32 DATASHEET

[. . . ] www. vaisala. com Vaisala Telemetry Antenna RM32 Features and benefits Radiation pattern optimized for radiosonde reception Easy installation Long telemetry range ­ 200 km with RS92-SGP High elevation angle coverage ­ improved data availability The Vaisala Telemetry Antenna RM32 is an omnidirectional UHF antenna used with the Vaisala DigiCORA® Sounding System to receive radiosonde signals in the 400 MHz meteorological band. [. . . ] The mounting sleeve at the bottom of the tubular stand makes it easy to install the whole antenna assembly on top of an external mast. All the amplifier parts are housed in a watertight box at the base of the antenna mast. The amplifier runs on DC voltage, supplied by the UHF receiver. Technical data General Frequency range Vertical antenna Directivity Polarization Horizontal pattern Helix antenna Gain Polarization Horizontal pattern 400 . . . 406 MHz 5 dBi Vertical Omnidirectional 3dBic Right-hand circular Omnidirectional with hemispheric coverage Mechanics Cable connector Total height including mast Inner diameter of mounting sleeve Weight Standard cable length Coaxial N-type male 1760 mm 61. 5 mm 11. 4 kg with the feeder cable 6. 3 kg without the cable 33 m Environmental conditions Operating temperature range Operating humidity range Operating precipitation Maximum wind speed -40 . . . 100 %RH Unlimited 65 m/s Telemetry range With RS92-SGP radiosonde 200 km Amplifier Gain Noise figure Power input Output impedance 20 dB typical <2 dB +10 . . . 12 VDC, typically 130 mA through RF cable 50 ohms, VSWR <1. 5 For more information, visit www. vaisala. com or contact us at sales@vaisala. com Ref. [. . . ] All specifications -- technical included -- are subject to change without notice. [. . . ]