DECT analysis
Using the “0” key, you can call up the DECT analyser to measure active DECT
phones. By pressing the DECT key (0 key) more than once, you can even ana-
lyze all 10 channels (display reads: “DECT 0-9”) INDIVIDUALLY. You will quick-
ly be able to see which of the 10 channels is currently being used and when
channel hopping occurs. This channel separation is particularly practical in Audio
mode. However, a very special feature is the AUTOMATIC-DECT-CHANNEL-
HOPPING-MODE (DECT Auto-Rotate). It is automatically activated after pres-
sing the DECT key for the first time. Here, all 10 channels are CONSTANTLY
being measured and displayed one after the other. Like this, you will never miss
a channel hopping and can e.g. quickly evaluate the exposure caused by ALL
channels, using HOLD mode. Also see chapter 7.11
Exposure limit calculation and display in W/m² with “weak” signals
Simply set the marker level
Marker
to “-90dBm”
“Conversion” of measurement results to other physical units
As you know, using the HOLD function, you can “freeze” readings. Now, simply
change the unit [V/m, mA/m, dBm, dBµV] in the
Unit
menu and the old reading
will instantly be converted after leaving the menu.
Correct settings for manual input/measurement
For this, it is best to use our PC analysis software “LCS”. Here, dozens of opti-
mized “profiles” ranging from model making to 5GHz WLan are available at a
mouseclick. Additionally, information like channel number, provider etc. is being
displayed. You can simply “copy” these parameters and transfer them to SPEC-
TRAN.
Generally, the following rules apply to most signals:
1.)
Whenever possible, use only small frequency ranges (SPAN) from 10-
20MHz to eliminate interference or aliases and to have fast sweep times
2.)
RBW
setting of “3MHz” and
SpTime
of “5” is optimal.
3.)
ONLY use
Pulse
-mode on pulsed signals!
Should you e.g. want to measure the GSM900 Uplink (active mobile phone),
use:
fLow
=”876”;
fHigh
=”915”;
RBW
=”3MHz”;
SpTime
=”0.5”;
Pulse
=”Pulse”
Analysis on your PC
We offer the FREE PC analysis software “LCS” for SPECTRAN on our home-
page. This really versatile PRO software unleashes SPECTRAN’s full potential.
Whenever possible, you should use this software for getting everything possible
out of your SPECTRAN device.
9.0 Tips and tricks
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