Rohde & Schwarz R&S HL300 User manual

R&S®HL300
Handheld Log-Periodic Antenna
Manual
Manual
(XïQL2)
4097.3328.02 ─ 01
Radiomonitoring & Radiolocation

This manual describes the following R&S®HL300 models:
●R&S®HL300 Handheld Log-Periodic Antenna 4097.3005.02
© 2012 Rohde & Schwarz GmbH & Co. KG
Muehldorfstr. 15, 81671 Munich, Germany
Phone: [phone] - 0
Fax: [phone]
E-mail: [email protected]
Internet: http://www.rohde-schwarz.com
Printed in Germany – Subject to change – Data without tolerance limits is not binding.
R&S® is a registered trademark of Rohde & Schwarz GmbH & Co. KG.
Trade names are trademarks of the owners.
The following abbreviations are used throughout this manual: R&S®HL300 is abbreviated to R&S HL300, R&S®FSH4/8 is abbreviated
to R&S FSH4/8.

Contents
R&S®HL300
3Manual 4097.3328.02 ─ 01
Contents
1Characteristics.......................................................................................5
1.1 Use..................................................................................................................................5
1.2 Description....................................................................................................................6
1.3 Specifications................................................................................................................6
1.4 Equipment Supplied.....................................................................................................7
1.5 Recommended Extras..................................................................................................8
1.6 Ordering Information....................................................................................................8
2Preparation for Use................................................................................9
2.1 Use of a Commercial Tripod........................................................................................9
2.2 Assembling the Belt......................................................................................................9
2.3 Attaching the Belt to the Antenna.............................................................................11
3Operation..............................................................................................14
3.1 Operating Elements on the Handle...........................................................................14
3.2 RF and Control Cable.................................................................................................14
3.3 Activating or Deactivating the LNA in the R&S FSH4/8...........................................15
3.4 Notes on Practical Use...............................................................................................16
4Maintenance and Repair......................................................................18
4.1 Maintenance................................................................................................................18
4.2 Disassembly and Reassembly...................................................................................18
4.3 Functional Check........................................................................................................18
4.4 Storage and Transport................................................................................................18
5Diagrams and Patterns........................................................................20
5.1 VSWR...........................................................................................................................20
5.2 Antenna Factor and Practical Gain...........................................................................20
5.3 Radiation Patterns......................................................................................................21
6List of Appendices...............................................................................22

Contents
R&S®HL300
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Characteristics
R&S®HL300
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1 Characteristics
1.1 Use
The handheld log-periodic antenna R&S HL300 in conjunction with portable spectrum
analyzers (for example the R&S FSH4/8) is used to determine RF parameters and local-
ize potential interfering sources. The direction of signal sources is found by pointing the
antenna towards the direction of maximum signal voltage.
Fig. 1-1: R&S HL300 antenna overview.
1 = GPS/electronic compass unit
2 = toggle switch
3 = antenna handle
4 = log-periodic dipole array
The overall frequency range from 450 MHz to 8 GHz is covered by a log-periodic dipole
array antenna structure with a distinct directional pattern. The antenna does not have to
be tuned within its frequency range.
A built-in GPS receiver with an integrated patch antenna and an electronic compass
provide position and bearing data for further processing in the connected spectrum ana-
lyzer. A toggle switch at the antenna handle activates or bypasses the LNA (Low Noise
Amplifier) inside the R&S FSH4/8, thus allowing the use of the system in the vicinity of
strong transmitters.
The R&S HL300 is characterized by the following features:
●Unambiguous direction finding, i.e. distinct directional pattern with the receive maxi-
mum pointing to the front in the frequency range from 450 MHz to 8 GHz.
Use

Characteristics
R&S®HL300
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●The maximum of the antenna output signal serves as a directional criterion (maximum
direction finding).
●Handy size despite extreme broadband capability.
●Fatigue-free operation due to the antenna design and the material used, which keep
its weight to a minimum.
●Mainly used for vertical polarization but for test purposes horizontal polarization can
also be used by turning the antenna by 90°.
●May be mounted on a tripod (¼” mounting thread).
●Power supply via the connected R&S FSH4/8 through the data and control cable.
1.2 Description
The R&S HL300 comprises the following elements:
●Log-periodic dipole array antenna with a nearly frequency-independent directional
pattern
●GPS receiver and electronic compass
●Toggle switch for activating and deactivating the LNA within the R&S FSH4/8; indi-
cation by adjacent LED
●RF and control cable (length approx. 1.5 m with N-type connector and control con-
nector)
●Tripod mounting thread
A green LED on the rear of the supply and display unit indicates activation of the LNA
within the R&S FSH4/8.
1.3 Specifications
Table 1-1: Electrical specifications.
Frequency range 450 MHz to 8 GHz
Polarization Vertical
(horizontal polarization is also possible when turning
the antenna by 90°)
Nominal impedance 50 Ω
VSWR < 2.5 (500 MHz to 8 GHz)
< 3 (below 500 MHz)
for typical values see figure 5-1
RF connector N-male
Antenna factors for typical values see figure 5-2
Practical gain for typical values see figure 5-2
Directional patterns for typical values see figure 5-3 and figure 5-4
Description

Characteristics
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Control connector “Binder” 7 pin male
Supply voltage 5V ± 0.2 V (supplied by spectrum analyzer)
Current consumption max. 100 mA
GPS
Acquisition time
Time pulse frequency
Time pulse accuracy
Navigation update rate
typ. 26s (cold start, all satellites with -130 dBm)
1 Hz
30 ns RMS (under good GPS signal conditions)
1 Hz
Electronic compass
Azimuth coverage
Elevation range
Compass accuracy
0° to 360° in 1° steps
-60° to 60° in 1° steps
typ. 2° RMS for 0° elevation
typ. 4° RMS for ± 60° elevation
Table 1-2: Mechanical and environmental specifications.
Dimensions
max. length
max. width
max. depth
approx. 580 mm
approx. 310 mm
approx. 90 mm
Weight approx. 1 kg (excluding transport bag)
Temperature ranges
Operating temperature range
Nominal temperature range
Storage temperature range
-30 °C to +55 °C (no condensation)
-10 °C to +50 °C
-30 °C to +60 °C
Vibration resistance
according to DIN EN 60068-2-64
random 10 Hz to 300 Hz: 0.01 g2/Hz
300 Hz to 500 Hz: 0.003 g2/Hz
every 30 minutes in the three orthogonal axes; accel-
eration approx. 1.9 g rms
Shock resistance
acc. to DIN EN 60068-2-27 and MIL STD 810 E
max. 40 g, crossover frequency 45 Hz in three orthog-
onal axes
MTBF
according to SN29500, ground benign, 45°C
> 100 000 hours
1.4 Equipment Supplied
Delivery of the R&S HL300 includes:
●1 Handheld Log-Periodic Antenna R&S HL300
●1 transport bag
●1 carrying belt
Equipment Supplied

Characteristics
R&S®HL300
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●1 CD-ROM with manual
●Safety instructions and customer information (print version)
1.5 Recommended Extras
The following extras are recommended:
Designation Order number
R&S FSH4/8 Handheld Spectrum Analyzer 1309.6000.xx
Commercial tripod available in specialist shops
1.6 Ordering Information
Designation Order number
R&S HL300 Handheld Log-Periodic Antenna 4097.3005.02
Recommended Extras

Preparation for Use
R&S®HL300
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2 Preparation for Use
2.1 Use of a Commercial Tripod
The R&S HL300 has a ¼" tripod mount in the lower part of the handle, which is suitable
for attachment to a commercial tripod. The antenna is fastened to the tripod via the tripod's
fastening screw.
2.2 Assembling the Belt
Upon delivery the belt is disassembled. It consists of the following components:
●1 belt
●2 fastening straps
Fig. 2-1: Belt (1) and fastening straps (2).
●Attach the two fastening straps to the belt as shown in figure 2-2, figure 2-3 and 
figure 2-4.
Make sure you insert the end of the belt in the plastic fastener facing away from the
neoprene (see red arrow in figure 2-2).
Use of a Commercial Tripod

Preparation for Use
R&S®HL300
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Fig. 2-2: Attaching the fastening strap, step 1.
1 = belt
2 = fastening strap
Fig. 2-3: Attaching the fastening strap, step 2.
1 = belt
2 = fastening strap
Assembling the Belt