R&s®hm525 Active H-field Measurement Antenna

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HF Antennas R&S®HM525 Active H-Field Measurement Antenna R&S®HM525 Active H-Field Measurement Antenna 100 Hz to 30 MHz Extremely high sensitivity measurement of alternating magnetic fields The R&S®HM525 active H-field measurement antenna is a loop antenna. The voltage at its output is proportional to the amplitude of the alternating magnetic field that is present. Overview measurements are performed in the broadband mode, which covers the entire frequency range from 100 Hz to 30 MHz. To obtain maximum sensitivity, the antenna can be locally or remotely switched to the subrange mode. The frequency range is then divided into five subranges with different amplifier concepts in the active antenna part. For a function check, the antenna can be operated in the test mode. The antenna is individually calibrated by comparison method and comes with a calibration certificate. Key facts ❙ ❙ ❙ ❙ ❙ ❙ ❙ Extremely high sensitivity Wide dynamic range Wide frequency range Compact design Selftest possible Remote control capability (optional) Calibration certificate supplied with antenna Rohde & Schwarz HF – VHF/UHF – SHF Antennas | Catalog 2014/2015 Antennas2014_2015_cat_en_0758-0368-42_v0700.indb 22 04.06.2014 09:55:03 HF Antennas R&S®HM525 Active H-Field Measurement Antenna 10 kHz 1.5 10 100 MHz 10 18 1 1.3 GHz 26.5 1 40 2 Specifications Frequency range Broadband mode 100 Hz to 30 MHz Subrange mode Power supply 18 V ±0.5 V DC (max. 0.7 A) RF connector N female 3 Test signal connector N female Range 1 100 Hz to 600 kHz MTBF > 300 000 h Range 2 600 kHz to 1.2 MHz Operating temperature range –10 °C to +55 °C Range 3 1.2 MHz to 2.6 MHz Dimensions (W × H × D) Range 4 2.6 MHz to 8 MHz Range 5 8 MHz to 30 MHz approx. 640 mm × 730 mm × 400 mm (25.2 in × 28.7 in × 15.8 in) (without support) Input impedance 50 Ω Weight approx. 10 kg (22.5 lb) Field strength sensitivity see diagrams Class of application laboratory Calibration by comparison (as standard) Ordering information Type Order No. Active H-Field Measurement Antenna R&S®HM525 4031.0508.02 4 5 6 Recommended extras Pedestal R&S®HM525Z1 4036.1402.02 Control Unit R&S®GS525 4035.5004.02 Set of Fiber-Optic Cables R&S®GS525K1 4035.5604.02 Junction Unit R&S®GX525 4015.9256.02 Cabinet for Junction Unit R&S®KK524 4015.9004.02 Integration R&S®AM524-K 4015.7024.02 7 8 9 10 Field strength sensitivity in broadband mode 20 Measurement range 1 Measurement range 2 Measurement range 3 Measurement range 4 Measurement range 5 Field strength sensitivity in dB(µA/m) 0 –20 –40 –60 –80 –100 100 1000 10000 105 106 107 Frequency in Hz 108 11 20 0 Field strength sensitivity in dB(µA/m) Field strength sensitivity –20 12 –40 –60 13 –80 –100 100 1000 10000 105 106 107 Frequency in Hz 108 Bandwidth = 1 Hz; S/N ratio = 0 dB (measurement ranges 1 to 5 active). Rohde & Schwarz HF – VHF/UHF – SHF Antennas | Catalog 2014/2015 Antennas2014_2015_cat_en_0758-0368-42_v0700.indb 23 04.06.2014 09:55:03