USER’S MANUAL. PROPOWER-5
02/2007
Page
21
En
g
lis
h
Figure 17.-
Frequency tuning.
Figure 18.-
Configuration.
4.2.3.2 Frequency
tuning
When in
CHANNEL-FREQUENCY
operating mode, pressing the
CH-FR
[10]
key switches
tuning by channel
to
tuning
by frequency
and vice versa. In the
tuning by
frequency mode
in the case that LEVEL mode has
been selected (see section “4.2.3.3 CHANNEL-
FREQUENCY mode configuration”) the instrument
becomes a receiver with a resolution of 10 kHz in the
1 to 50 MHz band. In this mode you may tune to any signal within the band, including
leakage pilots, telephone and communications signals. To change tuning simply press
the rotary selector [9] until the digit you want to change is underlined and then turn the
rotary selector [9]. The channel number will appear to the left of the tuning frequency, as
long as it corresponds to an active channel.
Remark
:
When switching from frequency to channel, if the tuned frequency does not
correspond to any channel, the
PROPOWER-5
will search for the channel
nearest to this frequency and will stay tuned to this channel. This operation
may take a few moments.
4.2.3.3 CHANNEL-FREQUENCY mode configuration
In
CHANNEL-FREQUENCY
mode,
pressing the
CONFIG
key [14] will access
the first page of the configuration menu of
the parameters relative to this mode.
The parameters which may be changed and their
margins are shown in the following table. To change a
given parameter turn the rotary selector [9] until the field
is activated (it will appear shadowed) and then press. The value of the parameter will be
activated and may be changed by turning the rotary selector. When the value you want
appears, press the rotary selector [9] to validate it.
DESCRIPTION PARAMETER VALUES
(
only when tuning by frequency
)
Frequency steps
FREQ. STEP
From 0.01 to 10.00 MHz
Digital PLC channel
bandwidth
CHANNEL BW
From 0.3 to 9.9 MHz
Frequency where noise is
measured in the C/N measurement.
NOISE FREQ.
±9.9 MHz (relative mode). 1.00
MHz to 50.00 MHz absolute
mode.
Noise measuring mode.
NOISE MODE FREQ
(Absolute): Noise level is
measured at the frequency
defined by
NOISE FREQ.
∆
F
(Relative): The value defined
by
NOISE FREQ.
is added to
the tuning frequency.
Содержание PROPOWER-5
Страница 3: ...USER S MANUAL PROPOWER 5...
Страница 11: ...USER S MANUAL PROPOWER 5 Page 8 02 2007...
Страница 33: ...USER S MANUAL PROPOWER 5 Page 30 02 2007...
