Clear-Com Cellcom Instruction Manual download pdf (Page 7)

Vitec Group Communications

PTX-3 UHF Digital Hybrid IFB Transmitter

1-1

GENERAL TECHNICAL

DESCRIPTION

INTRODUCTION

The PTX-3 adds DSP capability and a convenient LCD interface to this

popular IFB transmitter, with the same physical size and interface

capabilities. The PTX-3 also offers new features such as selectable LF

roll-off and compatibility with some other popular brands.

The features include a graphics type backlit LCD display with a menu

system. The PTX-3 can be “Locked” to prevent a user from changing

any settings but still allow browsing of the current settings.

Figure 1-1: PTX-3 Digital Hybrid IFB Transmitter

The transmitter can be powered from any external DC source of 6 to

18 Volts at 200 mA maximum or from the provided 12 Volt power

supply with a locking power connector. The unit has an internal

self-resetting fuse and reverse polarity protection.

The PTX-3 is housed in a machined aluminum case with a tough

electrostatic powder coating. The front and rear panels are anodized

aluminum with laser etched engraving. The included antenna is a right

angle, ¼ wavelength monopole with a BNC connector, constructed of

polymer coated flexible steel cable.

These features, along with 250 milliwatt RF output power and a wide

range of selectable audio input types and levels, make the PTX-3 an

excellent choice for IFB and other applications where extended

operating range is required.

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Clear-Com Cellcom Instruction Manual Page 7