¸FSH
Handheld Spectrum Analyzer
¸FSH3 100 kHz to 3 GHz
¸FSH6 100 kHz to 6 GHz
¸FSH18 10 MHz to 18 GHz
Fourth Edition March 2007
Spectrum analysis
anywhere, anytime
– on earth and in space
The ¸FSH is the ideal spectrum analyzer for
rapid, high-precision, cost-effective signal investi
gations. It provides a large number of measure-
ment functions and so can handle anything from
the installation or maintenance of a mobile radio
base station up to on-site fault location in RF
cables as well as development and service –
an extensive range of applications.
-
Due to its excellent characteristics,
the ¸FSH3 is used on board the
International Space Station (ISS) for
distance-to-fault measurements on RF
antenna cables.
2 ¸FSH Handheld Spectrum Analyzer2
Handy, robust, and
portable
The ¸FSH has been designed as a robust,
Trace
Memory Trace
Clear/Write
Max/Min Hold
Average
View
Detectors
– Auto Peak
– Sample
– Max/Min Peak
– RMS
portable spectrum analyzer that can be used in
the field.
Robust edge protection,
stable carrying handle
Easy operation
Four hours operating time on battery power
Storage of up to 256 traces and setups
Easy data transfer to PC
High measurement accuracy
Softkey functionFunction keys
Best RF characteristics in its class
The ¸FSH can, of course, also be used on
the lab bench. The ¸FSH has an adjustable,
fold-out stand to position the instrument to an
optimal display viewing angle.
The ¸FSH and its accessories can be stored and
transported in the compact and sturdy aluminum transit
case.
12Handheld Spectrum Analyzer ¸FSH
Selection of measurement
functions:
Spectrum analysis
Scalar network analysis
Vector network analysis
Receiver mode
Channel power
TDMA power
Occupied bandwidth
DTF
3GPP code domain power
Isotropic antenna
C/N measurement
Power
Transducer factors
Limit lines
Display line
Selection of following functions:
Marker
Delta marker
Noise marker
Frequency counter
Multimarker
Memory for up to 256 traces
and setups
Direct printout of measure-
ment results
Transflective color display with
320 × 240 pixel, switchable to
monochrome display for highcontrast display when used in
direct sunlight in the field
RS-232-C optical interface
Simple menu-based operation
via softkeys
General instrument setups
Current instrument setting
Rotary knob
Default setting
Cursor keys
3¸FSH Handheld Spectrum Analyzer
AC power supply connector
Generator output, N connector
Power sensor connector
Trigger input/
external reference input
RF input, N connector
Headphones connector
Data in brief
¸FSH3 ¸FSH6 ¸FSH18
Frequency range 100 kHz to 3 GHz 100 kHz to 6 GHz 10 MHz to 18 GHz
Resolution bandwidths 1 kHz to 1 MHz (model .13)
100 Hz to 1 MHz (models .03 and .23)
Video bandwidths 10 Hz to 1 MHz
Displayed average noise level typ. –114 dBm (1 kHz) (model .13)
typ. –135 dBm (100 Hz) (models .03 and .23)
TOI typ. 13 dBm typ. 7 dBm
SSB phase noise <–100 dBc (1 Hz) at 100 kHz from carrier –90 dBc (1 Hz)
Detectors sample, max/min peak, auto peak, RMS
Level measurement uncertainty <1.5 dB, typ. 0.5 dB <1.5 dB to 6 GHz
Reference level –80 dBm to +20 dBm
Dimensions 170 mm × 120 mm × 270 mm (6.69 in × 4.72 in × 10.63 in)
Weight 2.5 kg (5,52 lb)
100 Hz to 1 MHz
typ. –135 dBm (100 Hz) typ. –128 dBm (100 Hz)
<2.5 dB to 16 GHz
<3 dB to 18 GHz
¸FSH – options and applications
The ¸FSH can be used for measurements up to an upper frequency limit of 3 GHz, 6 GHz, and
18 GHz. The 3 GHz and 6 GHz are available with or without internal tracking generator. When the track
ing generator is included, the ¸FSH can be used for distance-to-fault (DTF) measurements, scalar
and vector network analysis, and one-port cable loss measurement. Almost all models come standard
with an adjustable preamplifier, making them suitable for measuring very small signals. Power sen-
sors are available as accessories for high-precision terminating power measurements up to 8 GHz or
18 GHz as well as for directional power measurements up to 4 GHz. The following tables show possible
configurations for various applications and an overview of available models.
Product
¸FSH (models .03/.06)
with preamplifier
¸FSH (model .13)
with tracking generator
TDMA power measurements
Application
Channel-power measurements
Field-strength measurements/
measurements with isotropic antenna
C/N measurements
Channel tables
+¸
FSH-K3
+¸
FSH-K3
Receiver mode
Code domain power measurements
on 3GPP base stations
+¸
–
FSH-Z1/
-Z18
+¸
–
FSH-Z1/
-Z18
1)
Power measurements up to 8 GHz/18 GHz
Directional power measurements up to 1 GHz/4 GHz
+¸
FSH-Z14/
-Z44
+¸
FSH-Z14/
-Z44
Measurements on cables (distance-to-fault)
– – – –
+¸
FSH-Z2/Z3
+¸
FSH-B1
-
Scalar transmission measurements
Scalar reflection measurements
Vector transmission measurements
+¸
FSH-Z2
Remote control via RS-232-C
Vector reflection measurements
+¸
FSH-K1
+¸
FSH-K1
interface
FSH-Z2/Z3
2)
One-port cable loss
measurements
+¸
+¸
FSH-K2
2)
¸FSH (models .23/.26)
with tracking generator and
preamplifier
¸FSH18
¸FSH – models
¸FSH3 model .03
¸FSH3 model .13
¸FSH3 model .23
¸FSH6 model .06
¸FSH6 model .26
Frequency range Tracking generator Output power of
100 kHz to 3 GHz – –
100 kHz to 3 GHz
100 kHz to 3 GHz
100 kHz to 6 GHz – –
100 kHz to 6 GHz
+¸
FSH-K3
+¸
FSH-K3
1
)
For ¸FSH 3 model .23 with serial no. 103500
or later.
2)
¸FSH-K2 required.
+¸
FSH-Z2/Z3
+¸
-Z44
FSH-B1
-Z44
–
Preamplifier Resolution bandwidth
– – –
¸FSH standard function
– Not available
+¸
FSH-Z2/Z3
100 Hz to 1 MHz
100 Hz to 1 MHz
100 Hz to 1 MHz
100 Hz to 1 MHz
-Z18
-Z18
+¸
FSH-Z14/
+¸
FSH-Z14/
+¸
FSH-K4
tracking generator
–20 dBm – 1 kHz to 1 MHz
–20 dBm/0 dBm, selectable
–10 dBm (f < 3 GHz)
–20 dBm (f > 3 GHz)
+¸
FSH-Z1/
+¸
–
FSH-Z1/
+¸
FSH-K1
+¸
FSH-K1
+¸
FSH-Z2/Z3
+¸
FSH-K2
¸FSH18
¸FSH Handheld Spectrum Analyzer4
10 MHz to 18 GHz – – – 100 Hz to 1 MHz
TDMA power measurements
By means of the TDMA POWER function, the ¸FSH performs time-domain
power measurements within a timeslot of TDMA (time division multiple access)
methods. All the settings required for the GSM and EDGE standards are
predefined on the ¸FSH to make these measurements easier for the user.
In addition, up to five user-definable instrument setups can be loaded into the
¸FSH using the ¸FSH View software.
Channel-power measurements
The ¸FSH determines the power of a definable transmission channel
by means of the channel-power measurement function. A channel-power
measurement for the digital mobile radio standards 3GPP WCDMA, cdmaOne,
and CDMA2000® 1x is performed at a keystroke with all the correct instrument
settings. With the ¸FSHView software, the user can quickly and easily
define further standards and load them into the ¸FSH.
CDMA2000® is a registered trademark of the Telecommunications Industry Association (TIA USA)
Field-strength measurements
When measuring electric field strength, the ¸FSH takes into account the
specific antenna factors of the connected antenna. Field strength is displayed
directly in dBµV/m. If W/m2 is selected, the power flux density is calculated
and displayed. In addition, frequency-dependent loss or gain of, for
example, a cable or an amplifier can be corrected. For quick and easy result
analysis, the ¸FSH provides two user-definable limit lines with automatic
limit monitoring.
¸FSH with ¸HE 200 active directional antenna (optional accessory)
Field-strength measurements with isotropic
antenna
When used with the ¸TS-EMF isotropic antenna, the ¸FSH can
determine the direction-independent resultant field strength in the frequency
range from 30 MHz to 3 GHz. For measuring the resultant field strength, the
antenna has three orthogonal antenna elements. The ¸FSH successively
triggers the three antenna elements and calculates the resultant field strength.
The calculation takes into account the antenna factors for each individual
antenna element as well as the cable loss of the connecting cable.
¸FSH with ¸TS-EMF isotropic antenna (optional accessory)
5¸FSH Handheld Spectrum Analyzer
C/N measurements
The ¸FSH offers a carrier/noise (C/N) measurement for determining the
ratio of carrier power to noise power or carrier power to noise power density.
The ¸FSH supports three different modes for carrier power measurement.
In the CW TX mode, the ¸FSH determines the power of an unmodulated
carrier. In the digital TX mode, it determines the channel power of a reference
channel, as is common with digitally modulated carriers (e.g. the DAB, DVB,
DVB-T, DVB-H, and J.83/A/B/C standards). Furthermore, the ATSC standard for
digital terrestrial television with 8VSB modulation is supported. In the analog
TV mode, the ¸FSH measures the peak power of the vision carrier with
amplitude-modulated TV signals.
Channel tables
If preferred, the ¸FSH can be tuned by channel numbers rather than by
entering the frequency. The channel number is displayed instead of the center
frequency. Users who are accustomed to channel assignments, which are
common in TV and mobile radio applications, can operate the ¸FSH more
easily. The channel tables are generated with the ¸FSHView software
and loaded into the ¸FSH. The ¸FSH includes TV channel tables for a
number of countries
Receiver mode
When equipped with the ¸FSH-K3 option, the ¸FSH can be operated
as a receiver for monitoring and precompliance EMC applications. Measure-
ments are performed at a predefined frequency with a user-selectable measure-
ment time. In the scan mode, the ¸FSH sequentially measures each level
at various frequencies defined in a channel table. The channel tables are
generated with the ¸FSHView software and loaded into the ¸FSH. For
a few TV transmitter and mobile radio standards, the tables are predefined.
In addition, the CISPR bandwidths 200 Hz, 9 kHz, 120 kHz, and 1 MHz are
available for EMI emission measurements. The ¸FSH offers peak, average,
RMS, and quasi-peak detectors.
¸FSH Handheld Spectrum Analyzer6
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