HF AntennasR&S®HFH2-Z2E Active Loop Antenna
56 Rohde & Schwarz HF – VHF/UHF – SHF Antennas | Catalog 2020/2021
The R&S®HFH2-Z2E active loop antenna measures the
magnetic field strength in the LF, MF and HF range. It can
be used for EMI measurements in line with various stan-
dards (i.e. CISPR, MIL, FCC, ANSI, ETSI).
Each antenna is individually calibrated.
It is characterized by an almost frequency-independent
antenna factor and very high sensitivity.
In strong field environments, an attenuator can be activat-
ed to reduce distortion. An integrated RF detector with a
threshold circuit reports overload of the antenna.
The antenna is supplied via a coaxial cable using the op-
tional R&S®IN600 bias unit.
Key facts
► Wide frequency range
► High sensitivity
► Wide dynamic range
► Compact design
► Integrated overload warning
► R&S®IN600 bias unit for power supply via coaxial cable
available
► No batteries needed
► Individual calibration certi cate supplied with antenna
► Virtually constant antenna factor
8.3 kHz to 30 MHz
Broadband active loop antenna for measuring
magnetic field-strength components
R&S®HFH2-Z2E
ACTIVE LOOP
ANTENNA
Antennas_Catalog_2020_21_cat_en_0758-0368-42_v0900.indb 56 15.06.2020 15:29:30
30
20
10
0
–10
–20
–30
–30
–40
–50
–60
–70
–80
Frequency in MHz
Field strength in dB(μA/m/Hz)
0.01 0.1 1 10
Field strength in dB(μV/m/Hz)
1
2
3
4
5
6
7
8
9
10
11
12
13
10 kHz 1.5
10
100 MHz 1 1.3 GHz
10 18
26.5
40
HF AntennasR&S®HFH2-Z2E Active Loop Antenna
Rohde & Schwarz HF – VHF/UHF – SHF Antennas | Catalog 2020/2021 57
Lower limit field strength level (for SNR = 1) in normal mode (meas.)
Ordering information Type Order No.
Active loop antenna R&S®HFH2-Z2E 4110.2002.02
Recommended extras
Bias unit R&S®IN600 4094.3004.13
Transport case R&S®HFH2-Z7 4110.2925.02
Tripod R&S®HFH2-Z8 4110.2902.02
3D adapter for X, Y, Z plane measurements on
R&S®HFH2-Z8
R&S®HFH2-Z9 4110.2919.02
Height adaptation set R&S®HFH2-Z11 4110.2948.02
Specifications
Frequency range 8.3 kHz to 30 MHz
Polarization linear
Nominal impedance 50 Ω
VSWR 8.3 kHz to 20 kHz < 1.8
> 20 kHz to 30 MHz < 1.6
Antenna connector N female
Antenna factor
Normal mode 8.3 kHz to 20 kHz 20 dB (1/m) ± 2 dB
> 20 kHz to 30 MHz 20 dB (1/m) ± 1.5 dB
Attenuation mode 8.3 kHz to 20 kHz
30 dB (1/m) ± 2 dB
> 20 kHz to 30 MHz
30 dB (1/m) ± 1.5 dB
Lower limit magnetic field strength in normal
mode
8.3 kHz to 1.5 MHz see diagram
> 1.5 MHz to 30 MHz <–70 dB(µA/m/Hz) (meas.)
Upper limit magnetic field strength normal mode typ. 85 dB(µA/m)
attenuation mode typ. 95 dB(µA/m)
Destructive field strength 8.3 kHz to 30 MHz > 30 V/m
> 30 MHz to 2 GHz > 10 V/m
MTBF > 100 000 h
Power supply (via coaxial cable) +24 V DC –3 V/+1 V (max. 150 mA)
Operating temperature range +5 °C to +40 °C
Dimensions W × D × H
approx. 596 mm × 90 mm × 822 mm
(24 in × 4 in × 32 in)
loop diameter approx. 600 mm (24 in)
Weight approx. 3 kg (7 lb)
Antennas_Catalog_2020_21_cat_en_0758-0368-42_v0900.indb 57 15.06.2020 15:29:30