Nautel V10, Руководство пользователя по установке и эксплуатации

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V10/V7.5/V5/V3.5 Installation and Operation Manual
Issue 3.5 Section 2 Preparation for Use and Installation
(m) From the diagnostic display’s metering
screen, scroll through the meter
readings and verify they are close to
the level in the Critical Parameters
sheet. Verify that the reflected power
indicated is less than 63 W (V10),
57 W (V7.5), 23 W (V5) or 16 W (V3.5)
into a 50
Ω
load.
(n) Verify the reject load power levels
indicated are less than 100 W. If any of
the meters indicate a level that is
greater than 100 W, swap the RF
power modules as detailed in Table
4-1 until the meter indicates less than
100 W.
(o) Using the
Module Status menu (see
3.6.5), scroll through each PA
module’s status screen while verifying
that the PA volts and PA dc currents
for each module are close to the
values indicated in the Critical
Parameters sheet.
(p) Ensure all other RF power related data
in the Critical Parameters sheet has
been verified.
NOTE
Due to variation in the dummy load or
antenna system, it may be necessary to
adjust the PA voltage slightly to obtain the
desired power level. If the data in the
Critical Parameters sheet cannot be
substantiated, contact Nautel.
(q) If a standby IPA module is installed,
select IPA B as main (see 3.6.13) and
verify the transmitter operates at the
assigned power level with no alarms.
Select the desired main IPA module (A
or B).
(r) For
V5/V3.5 only: If a standby IPA PS
module is installed, select IPA PS B as
main and verify the transmitter
operates at the assigned power level
with no alarms. Select the desired
main IPA PS (A or B).
(s) If a standby exciter is installed, select
exciter B as main and verify the
transmitter operates at the assigned
power level with no alarms. Select the
desired main exciter (A or B).
(t) If a standby fan PS is installed, select
Fan PS B as main and verify the
transmitter operates at the assigned
power level with no alarms. Select the
desired main Fan PS (A or B).
(u) Transmitter commissioning is
complete.
2.4.4 Placing Transmitter On-Air
When the initial turn-on procedure is
complete, place the transmitter on-air as
follows:
(a) Ensure the transmitter’s RF power
stage is switched off (press the
Control - RF Off button).
(b) Verify the transmitter's RF output is
connected to an antenna system.
(c) Connect the station program as the
transmitter's modulating audio source.
NOTE
Connection of the audio cable's shield is
dependent on the presence or absence of
ground loops. In some installations, it may
be necessary to connect the shield at one
end only. In these cases, connect the end
that provides the best results.
(d) Select the desired preset in the presets
menu (see 3.6.4).
(e) Switch on (enable) the transmitter’s RF
power stage (press the Control - RF
On button).