HF AntennasR&S®HFH2-Z6E Active Rod Antenna
58 Rohde & Schwarz HF – VHF/UHF – SHF Antennas | Catalog 2020/2021
The R&S®HFH2-Z6E active rod antenna measures the elec-
trical field strength in the LF, MF and HF range. It can be
used for EMI measurements in line with various standards
(i.e. CISPR, MIL, FCC, ANSI, ETSI).
Individual calibration in line with CISPR/ANSI standards
available.
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.
Different standards require different ground planes. For
MIL-STD-461G, the R&S®HFH2-Z12 ground plane is
60cm × 60cm. For CISPR measurement applications, the
R&S®HFH2-Z13 ground plane is 60cm × 125cm.
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 certicate supplied with antenna
► Virtually constant antenna factor
8.3 kHz to 30 MHz
Broadband active rod antenna for measuring
electrical field components in EMI test setups
R&S®HFH2-Z6E
ACTIVE ROD
ANTENNA
R&S®HFH2-Z6E (model .03) incl.
R&S®HFH2-Z12 ground plane
Frequency in MHz
Field strength in dB(μV/m/Hz)
0.01 0.1 1 10
0
–5
–10
–15
–20
–25
–30
–35
–40
–45
–50
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-Z6E Active Rod Antenna
Rohde & Schwarz HF – VHF/UHF – SHF Antennas | Catalog 2020/2021 59
Lower limit field strength level (for SNR = 1) in normal mode
with average detector (meas.)
Ordering information Type Order No.
Active rod antenna, without ground plane R&S®HFH2-Z6E 4110.1006.03
Recommended extras
Calibration adapter R&S®HFH2-Z10 4110.1570.03
Bias unit R&S®IN600 4094.3004.13
Wooden tripod R&S®HZ-1 0837.2310.02
Rod antenna stand R&S®RAS 5611.5035.02
Ground plane for R&S®HFH2-Z6E,
for MIL-STD-461G (60 cm × 60 cm)
R&S®HFH2-Z12 4110.1141.02
Ground plane for R&S®HFH2-Z6E, for CISPR
measurement applications (60 cm × 125 cm)
R&S®HFH2-Z13 4110.1158.02
Specifications
Frequency range 8.3 kHz to 30 MHz
Polarization linear/vertical
Nominal impedance 50 Ω
VSWR < 1.6
RF connector N female
Antenna factor in normal mode, rod length: 1 m 12 dB(1/m) (nom.)
attenuation mode, rod length: 1 m
25 dB(1/m) (nom.)
Lower limit field strength in normal mode 8.3 kHz to 1 MHz see diagram
> 1 MHz to 30 MHz < –37 dB(µV/m/Hz) (meas.)
Upper limit field strength normal mode typ. 125 dB(μV/m)
attenuation mode typ. 135 dB(μV/m)
Destructive field strength 8.3 kHz to 30 MHz > 50 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
base (W × L × H)
approx. 160 mm × 160 mm × 92 mm
(6 in × 6 in × 4 in)
rod height approx. 1000 mm (39 in)/1040 mm (41 in)
Weight without ground plane approx. 2.6 kg (6 lb)
with ground plane approx. 6.5 kg (14 lb)