R&s®hk353a Vhf/uhf Omnidirectional Atc Antenna

Transcript

VHF/UHF Antennas R&S®HK353A VHF/UHF Omnidirectional ATC Antenna R&S®HK353A VHF/UHF Omnidirectional ATC Antenna 100 MHz to 156 MHz (VHF) 225 MHz to 400 MHz (UHF) For air traffic control (ATC) The R&S®HK353A VHF/UHF omnidirectional ATC antenna is designed for ground-to-air ATC communications. Due to its modular design, any number of antenna configurations (up to an overall height of 10 m) can be set up on the mast. The most important system components are the selfsupporting antenna mast, the VHF dipole, the UHF dipole and the specially developed decoupling unit. The coaxial arrangement of the dipoles permits several transmitting and receiving antennas to be set up. For easy transport, the antenna mast made of glassfiberreinforced plastic comes in two sections (for masts longer than 6 m). The modular dipoles and the decoupling units are arranged inside the supporting cylinder. Key facts ❙ Modular VHF and UHF dipoles ❙ Extremely high isolation with minimum space requirement ❙ Components individually combinable ❙ Self-supporting antenna mast Rohde & Schwarz HF – VHF/UHF – SHF Antennas | Catalog 2014/2015 Antennas2014_2015_cat_en_0758-0368-42_v0700.indb 114 04.06.2014 09:56:49 VHF/UHF Antennas R&S®HK353A VHF/UHF Omnidirectional ATC Antenna 10 kHz 1.5 10 100 MHz 10 18 1 1.3 GHz 1 40 26.5 2 Specifications R&S®HK153D2 VHF dipole VSWR < 2.5 (with radome) > 2 dBi per dipole 3 Frequency range 100 MHz to 156 MHz Gain Polarization linear/vertical Horizontal radiation pattern omnidirectional Max. input power 700 W CW per dipole Uncircularity < ±1 dB Input impedance 50 Ω Dimensions (Ø × L) VSWR < 2.5 (with radome) approx. 130 mm × 925 mm (5.1 in × 36.4 in) Gain > 2 dBi per dipole Weight approx. 1.6 kg (3.5 lb) Horizontal radiation pattern omnidirectional General data Uncircularity < ±1 dB Max. wind speed Dimensions (Ø × L) approx. 250 mm × 1850 mm (9.8 in × 72.8 in) Weight approx. 6 kg (13.2 lb) R&S®HK253D2 UHF dipole Without ice deposit 4 5 190 km/h With 50 mm radial ice deposit 177 km/h MTBF > 500 000 h Operating temperature range –30 °C to +50 °C Frequency range 225 MHz to 400 MHz Storage temperature range –40 °C to +70 °C Polarization linear/vertical Dimensions (Ø × H) Max. input power 450 W CW per dipole approx. 280 mm × 2 m to 10 m (max.) (11 in × 78.7 in to 393.7 in (max.)) Input impedance 50 Ω Weight depends on system configuration 6 Ordering information Type Order No. VHF/UHF Omnidirectional ATC Antenna R&S®HK353A on request 7 8 9 Typical VHF radiation patterns at 125 MHz Azimuth pattern Elevation pattern –30° Azimuth pattern Elevation pattern 0° 1.0 30° –30° 0° 1.0 0.6 60° 0.6 –60° 0.4 0.4 0.2 0.2 90° φ, ϑ –90° –120° 120° –150° 150° ±180° 11 30° 0.8 0.8 –60° 10 Typical UHF radiation patterns at 225 MHz 60° 12 90° φ, ϑ –90° –120° 13 120° –150° 150° ±180° Rohde & Schwarz HF – VHF/UHF – SHF Antennas | Catalog 2014/2015 Antennas2014_2015_cat_en_0758-0368-42_v0700.indb 115 04.06.2014 09:56:49