Clear-Com PRC-2 User Manual

0 (0)

CLEAR-COM WIRELESS IFB

PRC-2

UHF MULTI-FREQUENCY BELT-PACK IFB

RECEIVER

INSTRUCTION MANUAL

Part Number 810400Z Rev. 2

Vitec Group Communications LLC

850 Marina Village Parkway

Alameda, CA 94501

U.S.A

Vitec Group Communications Ltd

7400 Beach Drive

IQ Cambridge

Cambridgeshire

United Kingdom

CB25 9TP

Vitec Group Communications

Room 1806, Hua Bin Building

No. 8 Yong An Dong Li

Jian Guo Men Wai Ave

Chao Yang District

Beijing, P.R. China 100022

® Clear-Com, CellCom/FreeSpeak and the Clear-Com Communication Systems logo are registered trademarks of The Vitec Group plc.

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

General Technical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

General Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Control Knob . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

LED Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Headphone Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Mono Plug/Stereo Plug Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Audio Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Frequency Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Receiver Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Receiver Normal Operation (already programmed) . . . . . . . . . . . 1-6

ProgrammingAdd a New Frequency To the Next Open Channel 1-6

Erase All 5 Channel Memories . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

Multiple Transmitter Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

Battery Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

LIMITED WARRANTY . . . . . . . . . . . . . . . . . . . . . . . W-I

Warranty Period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .W-i

Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .W-i

Warranty Repairs and Returns . . . . . . . . . . . . . . . . . . . . . . . . . . . . W-ii

Non-Warranty Repairs and Returns . . . . . . . . . . . . . . . . . . . . . . . . W-ii

Extended Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . W-ii

Liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . W-iii

Vitec Group Communications	i
PRC-2 UHF Multi-Frequency Belt-Pack IFB Receiver

ii	Vitec Group Communications
	PRC-2 UHF Multi-Frequency Belt-Pack IFB Receiver

Please read and follow these instructions before operating this product.

IMPORTANT SAFETY INSTRUCTIONS

1.Read these instructions.

2.Keep these instructions.

3.Heed all warnings.

4.Follow all instructions.

5.Do not use this apparatus near water.

6.Clean only with dry cloth.

7.Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.

8.Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.

9.Only use attachments/accessories specified by the manufacturer.

10.Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.

11.Unplug this apparatus during lightning storms or when unused for long periods of time.

12.Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.

13.WARNING: To reduce the risk of fire or electric shock, do not expose this product to rain or moisture.

SAFETY NOTES

Excessive sound levels can cause permanent hearing damage.

1.Always adjust the volume to the lowest level before listening to unknown transmissions.

2.Use the lowest reasonable level consistent with hearing safety.

3.Do not use high sound levels in the earphone to overcome high ambient sound levels. That is absolutely foolish! Demand and use high isolation earphones.

4.Do not expose your ears to sound levels that cause them to ring. If your ears do ring after exposure, think of it as a warning bell telling you not to do that again.

Vitec Group Communications	i i i
PRC-2 UHF Multi-Frequency Belt-Pack IFB Receiver

OSHA (Occupational Safety Health Administration) guidelines on the maximum allowable time exposure to sound pressure levels that will cause hearing damage are as follows:

8 hours	at	90	dB	SPL

4 hours	at	95	dB	SPL

2 hours	at	100	dB	SPL

1 hour	at	105	dB	SPL

30 mins	at	110	dB	SPL

15 min	at	115	dB	SPL

Never expose your ears to 120dB SPL or higher/ Damage will occur.

Please familiarize yourself with the safety symbols in Figure 1. When you see these symbols on this product, they warn you of the potential danger of electric shock if the station is used improperly. They also refer you to important operating and maintenance instructions in the manual.

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

This symbol alerts you to the presence of uninsulated dangerous voltage within the product's enclosure that might be of sufficient magnitude to constitute a risk of electric shock. Do not open the product's case.

This symbol informs you that important operating and maintenance instructions are included in the literature accompanying this product.

Figure 1: Safety Symbols

i v	Vitec Group Communications
	PRC-2 UHF Multi-Frequency Belt-Pack IFB Receiver

1INTRODUCTION

INTRODUCTION

Thank you for selecting the ClearCom frequency agile, PRC-2 IFB Receiver. The PRC-2 is the result of extensive engineering experience with the very latest components. The design addresses the most demanding professional applications.

Figure 1-1: PRC-2 IFB Receiver

The ClearCom PRC-2 Receiver along with the companion PTX-3 transmitter allow on-air talent to monitor program audio, and to receive cues from directors and other production personnel.

The PRC-2 Receiver is housed in a rugged, machined aluminum package for lasting performance in abusive environments

Only the PRC-2 IFB Receiver is covered in this manual. The companion PTX-3 transmitter is covered in a separate manual. The PRC-2 IFB Receive will operate with any ClearCom PTX-3 IFB Transmitter in the same frequency block.

GENERAL TECHNICAL DESCRIPTION

The PRC-2 has a number of important and useful feature upgrades:

1.Two rotary HEX switches to manually set the operating frequency

2.Automatic sensing/control of a mono phone plug to eliminate the mono/binaural switch

3.A multi-color LED for battery status. The Frequency scan and memory features were retained.

The PRC-2 Receiver is comprised of a number of functional subsystems as shown in Figure 1-2 Control Panel and Figure 1-6 Receiver Block Diagram.

Vitec Group Communications	1 - 1
PRC-2 UHF Multi-Frequency Belt-Pack IFB Receiver

GENERAL FEATURES

The frequency agile IFB PRC-2 FM Receiver is designed to operate with the ClearCom PTX-3 Transmitter and features microprocessor control of 256 frequencies of operation within each frequency block. Each block covers 25.5 MHz with 0.1 MHz frequency spacing. Any one of ten different frequency blocks are factory available from 512 MHz to 805.5 MHz (except 608 to 614 MHz).

The unique microcontroller design in this receiver provides simple one knob and one LED operation for audio level, switching frequencies (channels), and easy on-the-fly programming. The receiver frequency can be set by manually using the two rotary HEX switches on the side of the unit or by using the automatic scan and store function, or both.

When powered ON, the receiver will default to the frequency set by the switches. A nonvolatile memory can store up to five additional frequencies accessible by pressing the knob. The memory remains during power OFF and even with the battery removed.

The IFB PRC-2 Receiver uses 20 kHz FM deviation for efficient use of the bandwidth and a single band compandor for clean quiet audio.

The Pilot Tone squelch locks the reception to the mating IFB PTX-3 Transmitter and ignores other signals.

The receiver operates on one 9 Volt alkaline battery for up to 8 hours and features a tricolor LED low battery indicator. The voltages are internally regulated for stability.

The receiver is housed in a compact, rugged, lightweight aluminum enclosure. The unit features a durable removable belt clip and an integral swing-aside battery compartment door.

CONTROL KNOB

The single front panel control knob performs multiple functions;

1.Rotate for Power ON/OFF

2.Rotate for Audio Level

3.Push quick, Channel Switching

4.Push and rotate for Scan

5.Channel programming

Refer to the RECEIVER OPERATING INSTRUCTIONS for full details on how to use the single knob control for channel selection, scanning, and programming of the five memory locations.

1 - 2	Vitec Group Communications
	PRC-2 UHF Multi-Frequency Belt-Pack IFB Receiver

+ 16 hidden pages