Nautel VS300, Руководство по предварительной установке, Страница: 19 / 62

VS300 Pre-installation Manual Description
Issue 2.0 2010-12-01 Page 1-1
Section 1: Description
This section provides a basic description of the VS300 transmitter and includes the following topics:
• Capabilities
• Options - see page 1-2
Capabilities
Power
The VS300 is a solid-state, VHF, frequency modulated broadcast transmitter that is capable of
continuous RF output power up to 330 W (in analog mode of operation) into a 1.2:1 VSWR (300 W
into a 1.5:1 VSWR).
The operator can vary the power continuously or switch to preset power levels using the VS300 front
panel UI or the advanced user interface (AUI). Presets store the power level, frequency and audio
input settings.
Frequency
The VS300 is broadband and can operate at any frequency in the FM broadcast band (87.5 -
108 MHz), into a nominal 50 ohm, unbalanced transmission line. This design is ideally suited for all
N+1 configurations.
Antenna tolerance
The VS300 will operate at rated power with a VSWR of 1.5:1. A higher VSWR results in a protective
foldback of output power. The greater the VSWR, the greater the reduction in RF power.
Remote control and monitoring
You can monitor all key parameters of VS300 operation, as well as control common functions such as
power output and exciter settings, from a remote location.
The VS300 allows for discrete remote control and monitoring using a multiconductor signaling cable,
connected between the transmitter and a remote control unit. You can also use a web browser, on any
web-interfaced device, to access 100% of the transmitter’s local functionality.