Activate "View Spectrogram Window" in the "View" menu (or press the F5 key):
After that, a complex Design of new Functions appears, as:
(If the windows are placed "wrong", just start the Software with holded STRNG-Button.)
Using
the left-hand menu "Scan range", you can now adjust all parameters and
control SPECTRAN remotely! After doing all desired adjustments, just
click on the "Upload-Button":
On
the other hand, you can also download all parameters from SPECTRAN to
your PC. For example, press "Hotkey 7" (GSM900) on your SPECTRAN. All
relevant settings & parameters can now be downloaded to the PC
using the "Download-Button":
The
easiest way to communicate is to activate"Always send Parameter
immediately to unit". All settings & parameters will now directly
be send to the SPECTRAN.
This Function is automatically set "on":
Like
with a video cassette recorder, you can start (PLAY-Button), stop
(STOP-button), suspend (PAUSE-button) the sweep mode or start a record
(Record-Function / red Dot):
In
the "Sweep Area" window, you can adjust the most important parameters.
You can also select from a list of PRESETS (profiles) for UMTS, DECT,
WLan, mobile phones etc. etc.:
Profil-menu:
Select the desired profile (for example DECT)
Sensor = Choose Sensor of NF-SPECTRAN [Magnetic Field, E-Field, Stat.Magnet., Analoginput.]
Attenuator = Choose Attenuator of NF-SPECTRAN [Auto, 0dB, 10dB, 20dB, 30dB, 40dB]
X = Choose X-Axis of NF-Magnetic Field Sensor
Y = Choose Y-Axis of NF-Magnetic Field Sensor
Z = Choose Z-Axis of NF-Magnetic Field Sensor
3D = Activate Isotrop (3D) Measuring of NF-Magnetic Field Sensor
Range-menu (HF):
Start = START-Frequency [MHz]
Stop = STOP-Frequency [MHz)
Span = FREQUENCY span (Start to Stop) [MHz]
Center = CENTER-Frequency [MHz]
Range-menu (NF):
Start = START-Frequency [kHz]
Stop = STOP-Frequency [kHz)
Span = FREQUENCY span (Start to Stop) [kHz]
Center = CENTER-Frequency [kHz]
Sweep-menu: (HF)
Sampletime = SAMPLETIME (1mS to 10000mS) [mS]. A Sampletime lower than 100mS is only usable with the SPECTRANV4.
PEP = Peak Envelope Power Measuring (as long as saved in Profil), otherwise the Measurement will be in RMS.
Pulsmode = PULSMODE [ON/OFF]
Sweep-menu: (NF)
Sampletime = SAMPLETIME (50mS to 10000mS) [mS].
RBW = FilterBandwith (RBW).
Bandwith-menu:
Resolution = FilterBandwith (RBW)
Video = Videofilter (VBW)
Pre-Ampliefier:
Turn ON/OFF the optional Pre-Amplifier of the Spectran4
Detector-menu:
Choose between RMS and Min/Max
Trace-menu:
Sweep = Show regular Sweep
Shadow = Activate Sweepshadow
Avg = Activate Average. Aside: Choose number of Sweeps, wich should be used (1-100). Aside (CLR): Delete Avg Cache.
Max hold = Activate HOLD Function. Aside (CLR): Reset HOLD-View.
Trace History = Any areas in the Spectrogram could be viewed again by
moving the mouse over the Spectrogram. By holding the left mouse
button, any areas could be marked. (AVG or Max Hold).
In the "Spectrogram" window you can change any setting and scale of the Spectrum- and Spectrogram-View:
Level-menu (HF):
Reference = Adjust Reference level (lowest level, where anything should be displayed) [dBm]
Dynamic = Adjust Dynamic (dB over Reference level) [dB]
Noise = Adjust Noise level (All lower level will not be displayed) [dBm]
Compression = Continous compression of the Spectrogram from 1:1 to
1:40. Allows a quick overview of mounts of datas [whole number]
Scale-menu (NF):
Unit = Fix the unit, wich will be used for the Scale of the Spectrum [femto, pico, nano, micro, milli, 1:1, kilo]
Scale = Adjust Dynamic. Highest value, wich should be viewed [1 - 1000 bzw. LG10, LG100, LG1000]
Noise = Adjust Noise level (All lower level will NOT be displayed) [%]
Compression = Continous compression of the Spectrogram from 1:1 to
1:40. Allows a quick overview of mounts of datas [whole number]
Adjust = Allows a quick and optimal scale of the Spectrum- and Spectrogram-View per mouse click.
Autom. = Constant and ideal Scale of the Spectrum- and Spectrogram View.
Marker-menu (HF):
No. = Change number of Markers. Possible are 1-10 Marker.
Minimum = Level, from which on the marker will be showed [dBm]. Level-Resolution: 1dB.
Marker-menu (NF):
No = Change number of Markers. Possible are 1-10 Marker.
Minimum = PERCENTAGE (Relation between bottom edge and top edge of the
screen), from which on the marker will be showed [%]. Resolution: 1%.
In the "Calibration" window, you can perform a highly precise calibration of the entire measurement subsystem:
- "Antenna" = Here you can select EXTREMELY PRECISE calibration data of various antennas (exact to 10MHz!). The corresponding entries for our HyperLOG antennas are included.
By selecting "None (0dBi)", no antenna is being chosen.
- "Cable" = Here, EXTREMELY PRECISE calibration data of a wide variety of cables can be selected. The matching entry for our included 1m RG316U cables is available as a preset.
By selecting "None (0dB)", no cable is being chosen.
- "Attenuator" = Here you can select EXTREMELY PRECISE calibration data of a wide variety of attenuators. ATTENTION: This function is ONLY
applicable to the HF-6080! The matching entry for our 20dB attenuator
is already included.
By selecting "None (0dB)", no attenuator is being chosen.
- "Calibration" (OFFEST) = Here
you can perform a MANUAL PRECISION CALIBRATION using a slider or direct
numeric entry. A really nice function, as this way precision is
adjustable in 0,1dB steps! Hence, you can, for example, "normalize" the
readings of SPECTRAN as close as 0,1dB to the readings of foreign
units. Another use of this function would be to do a HIGHLY EXACT
calibration of your SPECTRAN including the used cables, in the desired
frequency range, using an external signal generator! As a precaution, the current setting is continuously being displayed in the spectrum window.
In
the "Exposure limits" window, you can choose from a variety of complex
authoritative exposure limits and perform a wide range of special
displays and calculations:
- "Standard Limits" = Here you can choose among different exposure limits. After you made
your selection, the current reading is being displayed as a green bar
with percentage. Upon exceeding the limit, the bar becomes red.
Additionally, you can display up to 4 further bargraphs:
- "Average" = Displays the current average (over the exposure time).
- "Average Maximum" = Displays the highest average maximum (over the exposure time) that has ever occured.
- "Local Maximum" = Displays the current maximum over the exposure time.
- "Absolute Maximum" = Displays the highest reading that ever occured.
- "Limit" = Informational field. Displays the selected exposure limit and its unit.
- "Period" = Here you can adjust the timespan used for the functions "Average",
"Average maximum" and "Local maximum" via slider or direct input.
- "Linear" = Here you can change the scaling of the exposure limit display. Very
helpful with "overflowing" or "hardly changing" exposure limit
readings.
- "Logarithmic" = Here you can change the
"dynamics" of the exposure limit display. Especially helpful for
getting "sudden peaks" or "very low rates of change" under control.
- "Reset Datas" = Resets all bargraphs. All exposure limit calculations are restarted.
"LCS" offers infinite possibilities for calculating and displaying exposure limits. Here are two examples:
Authoritative exposure limit calculation according to ICNIRP (as percentages):
Building biological exposure limits according to ISB-2003 (readings in mW/m2):
ADVANCED HINT: Press the right mouse button in the exposure limit window for loading
CUSTOM exposure limits. These can be added to the file "limits.ini".
Various examples of the complex functionality are already included,
amongst others, a comparison (simultaneous display) of the old
"Salzburg precautionary limit" and the ICNIRP limit. For the scripting
master, everything is possible here ;-)
The "Results" window can be used to have the highest reading displayed, as well as for selecting the physical unit to use:
Results:
Shows the maximum reading and the corresponding frequency. The unit
selected under "Units" is being used for display. The size of the main
display (font size) is adjusted automatically. Furthermore, if there is
enough space, the unit is also being displayed in the big main display.
Units:
SIMULTANEOUSLY shows the current reading in dBm, dBµV, V/m, A/m and
W/m². In case of "small" values, an autorange feature (for example, pW/m²) is automatically activated.
You can also choose a physical unit here, which will be used
automatically for the spectrum display as well as the "Results" display.
"HOLD Maximum" activates the Hold feature.
"Marker accumulate" simply shows an accumulation of all Markers.
ATTENTION: The selected unit also influences the spectrum display. As
these values are not displayed logarithmically, it might be necessary
to adjust dynamics so that the complete sweep becomes visible again.
EXAMPLES:
Well visible here: Optimal use of colour for displaying the level of a 1945 MHz signal modulated at different frequencies.
PRO feature: Up to 10! markers are being created automatically (what more could you ask).
By the way: the readings used to create the waterfall display can also
be queried AT A LATER TIME. Just move your mouse to the desired spot in
the diagram, and hold the CTRL key. While holding the CTRL key, you can
also just continue moving your mouse. The values will get updated
continuously.
Nice
graphical display of the influence of various filter types on a single
UMTS signal (first 3MHz, then 1MHz, then 300kHz). Using the "Waterfall"
display, this weak signal is still well visible in spite of backgrund
noise:
An amazing PROFESSIONAL feature is the display of channel grids! With this feature, arbitrary grids can be displayed and labelled in any
desired way. Using this feature, you can, for instance, visualize the
exact SERVICE PROVIDERS of transmission towers etc. in CLEAR TEXT,
WITHOUT the need for looking them up in tedious tables. Even several
hierarchical levels are possible: You could display an additional level
"Uplink" and "Downlink" in addition to the "Providers" level.
The channel labels can be toggled in the "View" menu using the "Display channel labels" option.
Want
exposure limits ? No problem with LCS. Various ways of displaying a
variety of exposure limits are at your disposal. Even a precise
calibration up to 0,1dB is possible with LCS:
The
intuitive zoom feature simplifies operation considerably. As shown,
simply select the desired range with your mouse, and a new, full
resolution sweep is initiated in the zoomed range. Simply AMAZING!
HINT:
In the included file "scanprofile.ini", you can create CUSTOM profiles
which then become available for instant selection in the spectrum
analyser software. Various examples are already included.
|