Publicité
Les langues disponibles
Les langues disponibles
RF-EXPLORER/3
ELECTRONICS FOR SPECIALISTS
ELECTRONICS FOR SPECIALISTS
4.1 Menu operation mode
-10
USB
2421.135
5/s
-88.5
MENU
dBm
nOR
FIR
-120
2408.000M
2433.000M
-5
USB
25/
ENTER
dBm
2 3 4 5
6
1
MxH
FIR
-120
2412.000M
2442.000M
ENTER
OPERATIONAL MODE
*
240-960MHZ
Spectrum Analyser
WiFi Analyser
[ACTIVE]
RF Connection
15-2700MHZ
Battery
64KB RAM Extra found
About
2MB ROM Extra found
INTERNAL BATTERY
BATTERY LEVEL:84%
Connect to USB and
set Pwr Switch to ON
for battery to charge
RF Explorer
Spectrum Analyzer
MENU
S/N:B3B985L7K8BM8NCF
ver01.23 20-Sep-17
www.rf-explorer.com
Fig. 5 Menu operational mode
To call the menu OPERATIONAL MODE, press the button
MENU (repeatedly). Select the desired function using the
button or and press the button ENTER to call the
function.
Spectrum Analyser: spectrum analyser mode
(chapters 4.2 – 4.4)
WiFi Analyser: Wifi analyser mode (chapter 5)
This menu line is only available if the frequency range
"15 – 2700M" has been selected in the bottom line
"Module" of the frequency menu (chapter 4.2).
RF Connection: indication of the activated frequency
range (240 – 960 MHz or 15 – 2700 MHz; chapter 4.2)
with the antenna jacks used and indication of memory
size
Battery: battery status indication
About: indication of information relating to the unit, e. g.
serial number and firmware version
ELECTRONICS FOR SPECIALISTS
4.2 Frequency menu
FREQUENCY MENU
Center Freq: 2433.000
Freq Span: 050.000
Start Freq: 2408.000
Stop Freq: 2458.000
Module: 15-2700M
2458.000M
Fig. 6 Frequency menu
11
8 9
10
12 13
This menu which allows to change frequency settings is
7
probably the menu most used.
2472.000M
When, after switching-on the RF EXPLORER, the
*
spectrum is displayed and the button MENU is pressed
twice, the frequency menu appears. However, this pro-
cedure is changed in the following. Each time the button
MENU is pressed while the spectrum is displayed, the last
menu called appears. Thus, time is saved as it is not nec-
essary to navigate through all menus to return to the
previous one.
There are two different methods to change the frequency
range shown in the spectrum display:
1. Center Freq and Freq Span
This is the usual spectrum analyser adjustment all
experts are familiar with. The center frequency (Center
Freq) of the frequency band to be analysed is adjusted
and then the bandwidth (Freq Span).
2. Start Freq and Stop Freq
Only a few spectrum analysers offer this user-friendly
method. The lower frequency (Start Freq) and the
higher frequency (Stop Freq) of the frequency range
to be analysed are adjusted.
When Center Freq and Freq Span are adjusted, Start Freq
and Stop Freq are changed accordingly and vice versa. In
general, Center Freq / Freq Span are adjusted when the
frequency is known and Start / Stop Freq to check a cer-
tain range.
To go to an option, use the buttons and . Then press
the button ENTER to be able to edit the option. Go to the
position to be changed with the button or . Adjust
the desired value with the button or and confirm
the adjustment with the button ENTER or cancel it with
the button RETURN.
In the line Module, use the button ENTER to select
the frequency range to be analysed (240 – 960 MHz or
15 – 2700 MHz). After selection, the display will briefly
indicate the activated frequency range with the antenna
jacks used:
MONACOR INTERNATIONAL GmbH & Co. KG • Zum Falsch 36 • 28307 Bremen • Germany
ELECTRONICS FOR SPECIALISTS
ELECTRONICS FOR SPECIALISTS
*
240-960MHZ
[ACTIVE]
15-2700MHZ
64KB RAM Extra found
2MB ROM Extra found
Fig. 7 Indication of the activated frequency range
(in this example: 15 – 2700 MHz)
Then the display will automatically return to the frequency
menu.
Notes: The bandwidth can be adjusted between 0.112 MHz
and 600 MHz. The lowest and the highest frequency to be
adjusted depend on the settings in the menu lines "Freq Span"
and Module".
Example of a change of bandwidth from 9 MHz to
6.5 MHz; the lower and the higher frequency will be up-
dated automatically:
FREQUENCY MENU
Center Freq: 0435.000
Freq Span: 009.000
Start Freq: 0430.000
Stop Freq: 0439.000
Module: 15-2700M
Fig. 8 Reducing the bandwidth from 9 MHz to 6.5 MHz
Exit the menu with the button RETURN and return to the
spectrum display.
-50
USB
432.098
5/s
-90,0
dBm
nOR
FIR
-110
431.750M
435.000M
438.250M
Fig. 9 Spectrum display with bandwidth 6.5 MHz
The new frequency range is adjusted. As a further exam-
ple, repeat the procedure to change the bandwidth to
2.5 MHz. For this purpose press the button MENU again:
The previous menu option (Freq Span) is selected. Change
the value to 2.5 MHz and confirm with the button ENTER.
Then press the button RETURN to return to the spectrum
display.
FREQUENCY MENU
Center Freq: 0435.000
Freq Span: 002.500
Start Freq: 0433.750
Stop Freq: 0436.250
Module: 15-2700M
Fig. 10 The bandwidth is changed to 2.5 MHz
The new frequency range is adjusted but what is interest-
ing now is that the center frequency can also be changed
with no need to call the frequency menu. For this purpose
press the button or (repeatedly) when the spectrum
is displayed: Each time the center frequency is reduced or
increased by
∕
of the bandwidth, i. e. at a bandwidth of
1
8
ELECTRONICS FOR SPECIALISTS
2.5 MHz by 0.3125 MHz by just pressing a key. This direct
*
method is especially useful with a narrow bandwidth.
During the spectrum display the measuring values and
the measuring curve can be frozen by pressing the but-
ton ENTER. This facilitates the reading for values rapidly
changing. In this case, the indication
axis is flashing. To return to the present values, press the
button ENTER again.
The frequencies of the scan range are indicated at the
X axis. Alternatively to this, the bandwidth
tre frequency
be indicated. To switch over, press the button RETURN.
When the button or is now pressed (repeatedly), it is
not the centre frequency which is changed but the band-
width. Thus, the bandwidth can also rapidly be changed
FREQUENCY MENU
without calling the menu.
Center Freq: 0435.000
Freq Span: 006.500
4.3 Attenuator menu
Start Freq: 0431.750
Stop Freq: 0438.250
This menu allows to change the level display in the Y axis.
Module: 15-2700M
To call the menu, press the button MENU repeatedly until
the menu is displayed.
ATTENUATOR MENU
Calculator: Normal
Top dBm: -010
Bottom dBm: -120
Iterations: 004
Offset dB: +000
Units: dBm
Fig. 11 Attenuator menu
This menu has some interesting options:
Calculator: offers five modes for the level display. To
change the mode, press the button ENTER.
Max: The peak values of the last frequency band scan
iterations [sweeps] (see menu option below) are used,
in this case the peak values of the last 4 scans. This
is the standard mode by which rapidly changing RF
signals may be detected or the channel assignment
can be found in difficult cases. (The selected mode is
shown in the spectrum display on the left of the Y axis,
-50
434.999
for this mode with
USB
-49.5
5/s
→
dBm
Average: The arithmetic media average during the
RETURN
nOR
last scan iterations is calculated. This mode is especially
FIR
-110
suitable to find the average of the noise floor and to
433.750M
435.000M
436.250M
display signals with constant frequency and amplitude
(Continuous Wave).
(This mode is shown in the spectrum display with
Overwrt: Higher level values overwrite lower values
until the button RETURN is pressed or the center fre-
quency is changed with the button or .
(This mode is shown with
English
ELECTRONICS FOR SPECIALISTS
ELECTRONICS
next to the Y
HLD
, the cen-
SP
and the resolution bandwidth
can
C
RBW
.)
MAx
.)
AVG
.)
OWR
5
Publicité
