- 5 -
- 4 -
Operating functions standard
Function
operated from:
Switch on
Push the key »down« after that key »up« or key »mode« shortly
(according of the desired mode)
Switch off
Push the keys »up« and »mode« simultaneously and shortly
Cursor move
key »down«
shortly
–
one step to left
key »up«
shortly
–
one step to right
Menu
key »mode«
long (>0.5 s)
–
one menu point forward
key »mode«
shortly
–
one menu point back
Switch on
after that
Special mode with »DC-ON«
Continue in operating scheme
Continue in operating scheme
after that
Level mode
with the stored menu.
with the stored menu.
Attentation!
At the measuring socket are
now 5 V available to supply
special accessories.
Switch off
Push the keys »up« and »mode« simultaneously. This is general possible in all
menu points and by that also a kind »emergency exit«.
Store switch on measuring range
The measuring range, which shall be available after switch on, can be defined by storage.
For it the wanted measuring range has to activate:
Push now the keys »down« and »mode«
At the next switch on of the instrument this measuring range is available at once.
SCAN -
- BK - SAT - DVB-T - WLAN
simultaneously until the storage symbol
appears.
3-KANAL
Measuring ranges
Menu
Display
4 SAT
5 DVB-T
-with antenna and VVT 20
6 WLAN
- with ANT 2,45 and VUW 2,45
1 SCAN
2 3-KANAL
dBµV/m
3 BK
dBµV
dBµV
dBµV
dBµV
dBµV
Menu
Display
1 SCAN
dBµV
2 3-KANAL
dBµV
3 BK
dBµV
4 SAT
dBµV
5 DVB-T
dBµV
- with antenna
After switch on of the instrument the last stored measuring range appears at the display. With the
key »up« or the key »down« can be selected another measuring range. At the SPM 22 the following
ranges are available:
1.) SCAN - 3-KANAL - BK - SAT - DVB-T
2.) SCAN - 3-KANAL - BK - SAT - DVB-T - WLAN
1
2
SCAN
3-KANAL
BK
SAT
Used for quick overview of an existing frequency spectrum. It enables the selection
of three ranges: channels in the CATV range, frequencies in an extended CATV
range and frequencies in the SAT range. The highest measured level is displayed at
channel/frequency (at digital signals are to add the following correction values: +8
dB at QAM, COFDM and +13 dB at QPSK). Now it can by repeatedly zooming the
displayed channel or frequency range further be analyzed.
This measuring range is suitable for a quick check, e. g. at the system outlets as ell as
especially for evaluation and adjustment of slopes. Here the levels are measured of
every three channels / frequencies / »D« channels, which are placed on one of the
storage places. Digital frequencies must be stored at this as »D« channel; otherwise
there is no automatic level correction! During the subsequent menu »SCAN« is
usually carried out a channel scan. Should be programmed on a channel to be
measured a frequency or a digital channel, it will then performed a frequency scan.
This measuring range is suitable for fast measurements in CATV systems. In this
case can go on switched in the channel raster inclusive return path and fm radio.
Digital channels are automatically detected and the precise level value is
displayed.
Special feature from V 41.83:
If the SPM 22
…
detect on S2/S3 digital signals, they are considered as 8 MHz
channels. (S2: 109
–
117 MHz; S3: 117
–
125 MHz)
This range is designed for the service of SAT receiving systems. The receiving
spectrum can be displayed in several resolutions. At digital QPSK-signals are to add
+13 dB to the measured level value. ATTENTION! For the control and power supply
of LNB is the additional accumulator AU-SPM necessary. This one must be ordered
separately as accessories.
continued on page 9