Vertex Standard VX-800 Service Manual page 20

Alignment
Alignment Sequence
Although the data displayed on the computer's
screen during alignment is temporary data, it is im-
portant that you follow the basic alignment sequence
precisely, so that the displayed data and the data
loaded into the transceiver are identical.
Basic Alignment Sequence
1. Enter the alignment mode
2. Upload data from transceiver
3. Align data
4. Download data to transceiver
Alignment Tool Menu
Common Data
The parameters in this section represent "common"
data for all channels. Once these "Common Data"
parameters are correctly aligned, the "T
"M D ," and "S A
AX EV UB UDIO
each channel, if needed.
During alignment, each parameter is adjusted for a
higher or lower value via the computer's [
[ ] keys. When the desired value is reached, type
[ENTER] to lock in the new value.
(0) Common Tx :
The first alignment section adjusts transmit-mode
parameters which are common to all channels.
- [0] F
REQUENCY
This parameter is used to adjust the PLL refer-
ence frequency. From the "(0) Common Tx" sec-
tion, press [0] to activate this alignment section.
• Press the [space] key on the keyboard to acti-
vate the transmitter.
• Press the [ ] or [ ] key, as need, so the counter
frequency is with in 50 Hz of the channel center
frequency for the MID channel.
• When the frequency is attained, press [ENTER]
to lock in the new data.
• Now verify that the HIGH and LOW channels
are also with in tolerance.
- [1] H
IGH
This parameter is used to align Tx High power
(5W). From the "(0) Common Tx" section, press
[1] to activate this alignment section.
• Use the [ ] or [ ] key to select the "MID (Ver. A)"
or "LOW (Ver. C)" frequency channel in the align-
20
P
X OWER
D ," can be trimmed for
EV
] and
ment range.
• Press the [space] key on the keyboard to acti-
vate the transmitter.
• Press the [
power output to 5 Watts, as indicated on the
external wattmeter.
• When the 5 Watt level is attained, press [EN-
TER] to lock in the new data.
- [2] L1
This parameter aligns the L1 power (0.25 W) lev-
el. From the "(0) Common Tx" section, press [2]
to activate this alignment section.
• Press the [space] key on the keyboard to acti-
vate the transmitter.
• Press the [ ] or [ ] key, as needed, to set the
power output to 0.25 W, as indicated on the ex-
,"
ternal wattmeter.
• When the 0.25 W level is attained, press [EN-
TER] to lock in the new data.
- [3] L2
This parameter aligns the L2 power (1 W) level.
From the "(0) Common Tx" section, press [3] to
activate this alignment section.
• Press the [space] key on the keyboard to acti-
vate the transmitter.
• Press the [ ] or [ ] key, as needed, to set the
power output to 1 Watt, as indicated on the ex-
ternal wattmeter.
• When the 1 Watt level is attained, press [EN-
TER] to lock in the new data.
- [4] L3
This parameter aligns the L3 power (2.5 W) lev-
el. From the "(0) Common Tx" section, press [4]
to activate this alignment section.
• Press the [space] key on the keyboard to acti-
vate the transmitter.
• Press the [ ] or [ ] key, as needed, to set the
power output to 2.5 W, as indicated on the ex-
ternal wattmeter.
• When the 2.5 W level is attained, press [EN-
TER] to lock in the new data.
- [5] M D
AXIMUM
This section adjusts the transmitter's voice devi-
ation level. From the "(0) Common Tx" section,
select [5] to enter this section.
] or [ ] key, as need, to set the
EVIATION