RADIOBEACON TRANSMITTER
ND500II (125 WATTS) DOUBLE SIDEBAND - NO VOICE
Page 1-1
01 November 2003
SECTION 1
GENERAL INFORMATION
INTRODUCTION
1.1
The ND500II-x1x-x2x double sideband
(no voice) radiobeacon transmitter can operate in the
LF/MF band (190kHz to 650kHz) at 125 watts
maximum carrier power or in the MF band (651kHz
to 1250kHz and 1600kHz to 1800kHz) at 100 watts
maximum carrier power. It 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) and
beacon keyed identification tone (A2A).
PURPOSE AND SCOPE OF MANUAL
1.2
This manual provides the information
necessary to install, operate and maintain the subject
transmitter (see figure 1-1).
PURPOSE OF EQUIPMENT
1.3
The subject transmitter, when combined
with an appropriate antenna system, provides
extremely reliable facilities for airfield locator or
aeronautical en route requirements. It is ideally
suited for installation at remote or unmanned sites.
Figure 1-1 ND500II-125 Watt Radiobeacon Transmitter
