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Rohde & Schwarz FSH6 Handheld spectrum analyzer 100 kHz - 6 GHz,
RBW 100 Hz -1 MHz, LCD color display, preamplifier
The Rohde & Schwarz FSH6 spectrum analyzer is a wide band, very sensitive
receiver. It works on the principle of "super-heterodyne receiver" to convert
higher frequencies (normally ranging up to several 10s of GHz) to measurable
quantities. The received frequency spectrum is slowly swept through a range of
pre-selected frequencies, converting the selected frequency to a measurable DC
level (usually logarithmic scale), and displaying the same on the CRT of the
Rohde & Schwarz FSH6. The CRT displays received signal strength (y-axis)
against frequency ( x-axis).
Some applications for Rohde & Schwarz FSH6 Spectrum Analyzers include
Site Monitoring: Verify that the frequency and signal strength of your
transmitter is accurate. Interference: Before a system is installed you use a
Rohde & Schwarz FSH6 spectrum analyzer to verify that the frequencies (you
plan to use) are not occupied or if the presence of a very strong signal will
interfere with your new setup. Interference can be created by a number of
different situations. Other tests that utilize the Rohde & Schwarz FSH6
spectrum analyzer features include antenna isolation, co-channel interference,
adjacent channel power, occupied bandwidth, intermodulation, microwave or
satellite antenna alignment, and characterization of components.
The FSH is the ideal spectrum analyzer for rapid, high-precision,
cost-effective signal investigations. It provides a large number of measurement
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 FSH is used on board the International Space
Station (ISS) for distance-to-fault measurements on RF antenna cables.
Features
- Frequency range 100 kHz to 6 GHz
- Internal preamplifier with frequency range from 100 kHz to 6 GHz
- Displayed average noise level typ. -135 dBm (RBW 100 Hz)
- 0.5 dB typ. level accuracy up to 6 GHz
- Resolution bandwidths 100 Hz to 1 MHz, 1 and 3 steps
- Wide range of detectors: sample, max/min peak, auto peak, RMS
The Rohde & Schwarz FSH Series is the ideal spectrum analyzer for rapid,
high-precision, cost-effective signal investigations. It provides a large number
of measurement functions to handle anything from the installation or maintenance
of a mobile radio base station, to on-site fault location in RF cables, to
development and service.
| Model |
Frequency Range |
Tracking Generator
Output |
Preamp |
Resolution
Bandwidth |
| FSH6 |
100 kHz to 6 GHz |
None |
Yes |
100 Hz to 1 MHz |
TDMA Power Measurements
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 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 channel-power measurement function is for determining the power in a
transmission channel specified by the user. After a few preliminary settings
have been made, a single keystroke starts the FSH's spectrum measurement inside
the channel, using a resolution bandwidth that is small relative to the channel
bandwidth. The FSH then integrates the measured values indicated by the trace to
obtain and display the total power. All the settings required for the digital
mobile radio standards 3GPP WCDMA, cdmaOne, CDMA2000 1x are predefined ready for
use. The FSH also takes the characteristics of the selected display mode (lin or
log), the selected detector and the resolution bandwidth into account so that
the result accuracy is comparable to that obtained with a thermal power
meter.
Measurements on Cables (distance-to-fault)
For rapid and accurate determination of the distance to any faults in an RF
cable. Distance-to-fault measurements using the VSWR Bridge FSH-Z2 give an
immediate overview of the state of the device under test (return loss and
distance). The marker-zoom function allows detailed analysis of faults with a
resolution of up to 1024 pixels.
Requires FSH313/323/626 (with built-in tracking generator), option FSH-B1
(distance-to-fault measurement) and FSH-Z2 (VSWR bridge and power divider).
Scalar Network Analysis
The FSH313/323/626 (with built-in tracking generator) can be used to
determine the transmission characteristics (i.e. attenuation or gain) of two
ports such as cables, filters, amplifiers, etc, rapidly and with a minimum of
effort. A simple calibration procedure compensates for the attenuation
introduced by measurement cables or any attenuators used for amplifier
measurements. When the VSWR Bridge FSH-Z2 is attached, the matching (return loss
or VSWR) at the input or output of two ports can be determined as well as their
transfer function. The bridge is screwed directly onto the RF input and tracking
generator output, and no extra or cumbersome cabling is required.
| Frequency |
R&S FSH6 |
|
Frequency range |
100 kHz to 6 GHz |
Reference Frequency |
Aging |
1 ppm/year |
|
Temperature drift
|
0 °C to +30 °C
|
2 ppm
|
| +30 °C to +50 °C |
In addition 2 ppm/10°C |
| Frequency counter |
Resolution |
1Hz |
Counter Accuracy
|
S/N > 25 dB |
± (frequency × reference frequency error) |
| Frequency Span |
model .06/.26 |
0 Hz, 100 Hz to 6 GHz |
| Spectral Purity |
| SSB phase noise |
f = 500 MHz,
+20 °C to +30 °C |
|
30 kHz from carrier |
<–85 dBc (1 Hz) |
100 kHz from carrier |
<–100 dBc (1 Hz) |
1MHz from carrier |
<–120 dBc (1 Hz) |
| Sweep Time |
span=0 Hz |
1 ms to 100 s |
| span>0 Hz |
20 ms to 1000 s, min. 20 ms/600 MHz |
| Bandwidths |
Resolution bandwidths (–3 dB) |
model .03/.23,
model .06/.26/.18 |
in addition 100 Hz, 300 Hz |
Tolerance
|
=300 kHz |
±5 %, nominal |
| 1 MHz |
±10 %, nominal |
Video Bandwidths |
|
10 Hz to 1 MHz in 1, 3
steps |
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