Nautel NARF79, Installation Manual

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VX150 TO VX2 INSTALLATION MANUAL DESCRIPTION
VERSION 0.3 2021-01-14 PAGE 1.1.1
SECTION 1.1: DESCRIPTION
This section provides a basic description of the VX150 to VX2 transmitters and includes the following
topics:
 Capabilities
 Transmitter Configuration - see page 1.1.2
 Options - see page 1.1.3
Capabilities
Power
The VX150 to VX2 transmitters are solid-state, VHF, frequency modulated broadcast transmitters that
are capable of continuous RF output power up to 165 W (VX150), 330 W (VX300), 660 W (VX600),
1100 W (VX1), 1650 W (VX1.5) or 2200 W (VX2) into a maximum 1.2:1 VSWR.
The operator can vary the power continuously or switch to preset power levels using the transmitter’s
remote advanced user interface (AUI) or the front panel user interface (UI).
Frequency
The transmitter 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.
Antenna Tolerance
The VX transmitter will operate at rated power even 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 until
shutdown occurs at 3:1 VSWR.
Remote Control and Monitoring
You can monitor all key parameters of VX transmitter’s operation, and control common functions, such
as power output and preset settings, from a remote location.
The VX series transmitter allows for discrete remote control and monitor wiring to two 9-pin D-sub
connectors on the rear panel. You can also use a web browser, from any web-interfaced device, to
access most of the transmitter’s local functionality (excludes system parameters that must be
configured locally and factory settings).