Vector-LP Radio Beacon Transmitter Technical Instruction Manual
Page
1-1
Section 1 General Information
Issue 1.1
Vector-LP Radio Beacon Transmitter
TECHNICAL INSTRUCTION MANUAL
Section 1
GENERAL INFORMATION
1.1 INTRODUCTION
The Vector-LP radio beacon transmitter:
x
Automatically
transmits
specific
beacon identification signals at pre-
selected repetition rates. Special codes
may also be transmitted when
commanded from an external source.
Provision is made for local or remote
operation of the transmitter as well as
antenna fine-tuning through controls on
the transmitter's front panel. Emission
is continuous carrier (NON), beacon
keyed identification tone (A2A) and
beacon with voice (A2A/A3A).
x
Provides continuous carrier power for
two different power configurations:
VR125
125 W maximum
VR250
250 W maximum
x
Can be modulated from 0 to 95%.
x
Operates in the LF/MF band (190 kHz
to 535 kHz).
x
VR125 has provision for extended
band operation, up to 125 W, in the MF
band (536 kHz to 1200 kHz and
1600 kHz to 1800 kHz).
x
Has provision for a standby exciter
section, which duplicates the PDM
and RF drive generation circuitry and
low voltage power supplies.
x
Has provision for single side or dual
side (A and B) RF power sections,
which can be manually or
automatically selected.
x
Can be serially connected to Nautel’s
ATU-LP or ATU500 Antenna Tuning
Unit, allowing a variety of control/
monitoring features, including
stabilization of the antenna current
(ATU-LP only) by automatically
adjusting transmitter power level.
1.2 FACTORY SUPPORT
Nautel provides after sales factory
support. Technical assistance is available
on a 24 hour, seven days a week basis. A
factory service facility for repair of
modules/assemblies is also available.
Refer to the
Factory Support
portion of the
Warranty
pages at the front of this manual
for additional information.
1.3 PURPOSE AND SCOPE OF
MANUAL
This
Technical Instruction
manual
provides the information required to
install, operate and maintain the
equipment. Where applicable, changes
have been incorporated to reflect non-
standard customer requests.
1.4 PURPOSE OF EQUIPMENT
When combined with an appropriate
antenna system, the Vector-LP transmitter
provides reliable facilities for an NDB
reference station. It is ideally suited for
remote or unmanned sites. Remote control
facilities are incorporated to allow
unattended operation from a remote
location.
