Vertex Standard VX-900 ユーザーズマニュアル
24
Alignment
Channels
The following parameters may be adjusted individu-
ally for each channel. For example, minor variations
in the power output across the operating band may
be equalized by following this section’s instructions.
ally for each channel. For example, minor variations
in the power output across the operating band may
be equalized by following this section’s instructions.
(2) Channels TX :
- [0] T
- [0] T
X
H
I
P
OWER
T
RIM
This parameter is used to trim Tx power on the
displayed channel. From the “(2) Channels Tx”
section, select [0] to adjust the “T
displayed channel. From the “(2) Channels Tx”
section, select [0] to adjust the “T
X
Hi Power Trim
”
setting(s).
• Use the [t] or [u] key to select the channel to be
adjusted.
• Press the [space] key on the keyboard to activate
the transmitter.
• Press the [p] or [q] key, as needed, to trim the
power output to the power that is programmed
by CE39 channel editor, as indicated on the exter-
nal wattmeter.
by CE39 channel editor, as indicated on the exter-
nal wattmeter.
• Press [ENTER] to lock in the new data.
- [1] T
X
L
OW
P
OWER
T
RIM
(L1, L2 or L3)
This parameter is used to trim Tx power on the
displayed channel. From the “(2) Channels Tx”
section, select [1] to adjust the “T
displayed channel. From the “(2) Channels Tx”
section, select [1] to adjust the “T
X
Low Power
Trim
” setting(s).
• Use the [t] or [u] key to select the channel to be
adjusted.
• Press the [space] key on the keyboard to activate
the transmitter.
• Press the [p] or [q] key, as needed, to trim the
power output to the power that is programmed
by CE39 channel editor, as indicated on the exter-
nal wattmeter.
by CE39 channel editor, as indicated on the exter-
nal wattmeter.
• Press [ENTER] to lock in the new data.
- [2] M
AXIMUM
D
EVIATION
T
RIM
This parameter is to trim maximum deviation on
the displayed channel. From the "(2) Channels Tx"
section, select [2] to adjust the deviation level.
the displayed channel. From the "(2) Channels Tx"
section, select [2] to adjust the deviation level.
• Use the [t] or [u] key to select the channel on
which you wish to adjust the deviation.
• Press the [space] key on the computer keyboard
to start alignment. This activates the transmitter,
and injects a 1 kHz test tone.
and injects a 1 kHz test tone.
• Press the [p] or [q] key, as needed, to set the
deviation to the desired value (typically 3.9~4.2
kHz, or 2.0~2.3 kHz for "narrow band" channels).
kHz, or 2.0~2.3 kHz for "narrow band" channels).
• When the desired deviation level is attained, press
[ENTER] to lock in the new value.
- [2] S
UB
A
UDIO
D
EVIATION
T
RIM
This parameter used to is to trim Subaudible de-
viation on the displayed Sub-audio channel. From
the "(2) Channels Tx" section, select [2] to adjust
the Subaudible Deviation level.
viation on the displayed Sub-audio channel. From
the "(2) Channels Tx" section, select [2] to adjust
the Subaudible Deviation level.
• Use the [t] or [u] key to select the channel on
which you wish to adjust the Subaudible Devia-
tion.
tion.
• Press the [space] key on the computer keyboard
to start alignment. This activates the transmitter,
and injects a subaudible test tone.
and injects a subaudible test tone.
• Press the [p] or [q] key, as needed, to set the
deviation to the desired value (typically 0.6±0.1
kHz, or 0.4±0.1 kHz for "narrow band" channels).
kHz, or 0.4±0.1 kHz for "narrow band" channels).
• When the desired deviation level is attained, press
[ENTER] to lock in the new value.
(3) Channels Rx :
- [0] M
- [0] M
ANUAL
T
UNING
This parameter is used to tune the RF front-end
components for the current channel manually.
From the "(3) Channels Rx" section, select [0] to
peak the receiver performance.
components for the current channel manually.
From the "(3) Channels Rx" section, select [0] to
peak the receiver performance.
• Use the [t] or [u] key to select the channel on
which you wish to adjust the front end alignment.
• Connect the signal generator to the Antenna jack,
and set its level to +20 dBµ EMF (5 µV).
• Press [ENTER] to lock in the new data.
(4) Other :
- [0] B
- [0] B
ATTERY
W
ARNING
L
EVEL
This parameter sets the battery warning level.
From the "(4) Other" section, select [0] to align
the battery warning voltage sensor.
From the "(4) Other" section, select [0] to align
the battery warning voltage sensor.
• Set the DC supply voltage to 6.5 Volts.
• Press [ENTER] to lock in the new data.
• Set the DC supply voltage to 7.5 Volts.
• Press [ENTER] to lock in the new data.
• Set the DC supply voltage to 7.5 Volts.