Ptek PS Series Guide

2 PTEK April 2016
Copyright © 2009 PTEK
ALL RIGHTS RESERVED. No part of this publication may be reproduced, transmitted,
transcribed, stored in a retrieval system, or translated into any language in any form by any
means for any purpose other than the purchaser’s personal use without the permission of PTEK.
The information in this publication has been checked and is believed to be accurate. However,
PTEK assumes no responsibility for inaccuracies. PTEK retains the right to make changes to this
publication at any time without prior notice. PTEK does not assume any liability arising from the
application or use of this publication or the product(s) described herein.
RESTRICTED RIGHTS LEGEND: Use, duplication, or disclosure by the United States
Government is subject to the restrictions set forth in DFARS 252.227-7013 (c)(l)(ii) and FAR
52.227-19.
This manual is for the:
2kW PS, 2.5kW PS, and 3kW PS
Operating Voltage Requirements:
***The PTEK 2, 2.5, 3kW PS are Dual Phase 110VAC devices, more commonly referred to as
220VAC***
Warranty Service
The Limited Warranty covers parts and labor to the original purchaser as outlined on purchase
invoice for use in the United States of America.
---These transmitters are not recommended for use as a replacement IPA---
Damage caused by misuse or shipping is excluded from the warranty. PTEK will not warranty
the product due to misuse, accident, neglect, and improper installation or operation. Proper
installation includes A/C line surge suppression, lightning protection and proper grounding of the
entire transmitter, and any other recommendations designated in this Operating Manual.

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PTEK
Customer Service Manager
111 N Vista Rd, Suite 3E
Spokane Valley, WA 99212
[phone] / [phone]
Safety Instructions
To maximize user safety and ensure correct device operation, all instructions contained in
this section should be read carefully.
Caution: It is important that the user observe all warnings and instructions
that are on the unit and contained in this manual.
Before Applying Power
Warning: DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE
Operation of the PS Series in the presence of flammable gases or fumes
can endanger persons proximate to the site of operation.
Verify that the line voltage is 220VAC
Ground the Amplifier
Caution: DO NOT REMOVE THE AMPLIFIER COVER
Removal of the amplifier cover will invalidate the warranty. Component
replacement and internal adjustments must be made only by PTEK
qualified service personnel.
To minimize shock hazard, the exciter chassis must be connected to an electrical ground,
the exciter must be connected to the AC power mains through a three-conductor power
cable, with the third wire connected to an electrical ground (safety ground) at the power
outlet. Any interruption of the protective (grounding) conductor or disconnection of the
protective earth terminal will cause a potential shock hazard that could result in personal

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injury. If the exciter is to be energized by any other source be certain that the chassis is
connected to a separate safety ground.

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AC Line Fuses and Trips
The PS Series power amplifiers are provided with an 8 gauge 3 conductor
“pig tail” AC Line cord. This should be wired into a breaker box and feed
with a 2 pole 35A breaker.
Output Connector
Warning: The Flange output connector carries dangerously high RF
voltages that present shock and burn hazards. Never operate the PS power
amp without properly terminating the output connector in either an
adequately rated load or antenna.
Electrostatic Discharge (ESD)
A sudden discharge of electrostatic electricity can destroy static-sensitive devices or
micro-circuitry. Proper packaging and grounding techniques are necessary precautions to
prevent damage. Always take industry-standard precautions.
Grounding Methods
Guard against electrostatic damage at workstations by following these steps:
1. Cover workstations with approved anti-static material. Provide a wrist strap connected to
a work surface and properly grounded tools and equipment.
2. Use anti-static mats, heel straps, or air ionizers to give added protection.
3. Handle electrostatic-sensitive components, boards, and assemblies by the case or the PCB
edge.
4. Avoid contact with pins, leads, or circuitry.
5. Turn off power and input signals before inserting and removing connectors or test
equipment.
6. Keep the work area free of non-conductive materials such as ordinary plastic assembly
aids and Styrofoam.
7. Use field service tools, such as cutters, screwdrivers, and vacuums that are conductive.

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General Safety Rules
The device must be used in accordance with the instructions for use.
Electrical installations in the room must correspond to the requirements of respective
regulations.
Take care that there are no cables, particularly mains cables, in areas where persons can
trip over them.
Do not use a mains connection in sockets shared by a number of other power consumers.
Do not use an extension cable.
Only use the mains cable supplied.
The unit is completely disconnected from the power source only when the power cord is
disconnected from the power source. Therefore, the power cord and its connectors must
always remain easily accessible.
Do not set up the device in the proximity of heat sources or in a damp location. Make
sure the device has adequate ventilation.
All plugs on the connection cables must be screwed or locked to the chassis housing.
The device is designed to be used in horizontal position only.
The device is no longer safe to operate when the device has visible damage or the device
no longer functions.
In case of system malfunction or visible damage to the PS Series, the device must be shut
down and secured against unintentional operation.
Repairs may only be carried out by authorized PTEK personnel.

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Preface
This document, PS Series Operating Manual and User Guide, provides
instructions on how to install, configure, power up, and perform diagnostics on
the PS series Transmitter (see photo below). The information contained within is
intended for an experienced system operator with a knowledge of high-
performance broadcast transmission systems. The 4RU-high (7.0”) PS
transmitters are designed to fit a standard 19” rack.
PS Series Broadcast Transmitter

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Key features of the PS Series PTEK Transmitter include:
Totally solid-state no-tune construction
Wide input range from 210 to 264 VAC
Remote-control interface
Built-in stereo generator
Meets or exceeds all FCC and CCIR standards
Designed and manufactured in the United States
The PS Series are FCC-type verified for use on FM stations. Frequency stability for each
unit is ensured by using Direct Digital Synthesis (DDS) frequency synthesis with a highly
stable crystal oscillator. All units incorporate over-temperature protection and VSWR
foldback to automatically reduce power output to safe operating levels.
Switch-mode power supplies provide consistent performance even when there are
frequent power outages and voltage fluctuations that make stressful demands of power
dependence. An overview and specifications of the PS Series PTEK Transmitter is given
in Chapter 1 of this manual: “Overview and Specifications.”
Website Information
Visit our website www.ptekpower.com for more information about our company and
products.
Your Comments are Welcome
We are interested in improving our documentation and welcome your comments and
suggestions. You can email your comments to us at [email protected]om.
Please include the document part number in the subject line of your email.
13-Month Warranty on all Parts and Labor

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Notes, Cautions, Warnings, and Sidebars
The following icons and formatted text are included in this document for the reasons
described:

Caution: A caution describes a procedure or action that may result in
injury to the operator or equipment. This may involve—but is not
restricted to—heavy equipment or sharp objects. To reduce the risk,
follow the instructions accompanying this symbol.
Warning: A warning describes a procedure or action that may cause injury
to the operator or equipment as a result of hazardous voltages. to reduce
the risk of electrical shock and danger, follow the instructions
accompanying this symbol.
Note: A note provides additional information concerning the procedure or action being
described.

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Chapter 1
Overview and Specifications
1.1 Overview
The PS Series are FCC-type verified for use on FM stations. Frequency stability
for each unit is ensured by using PLL (phase-locked loop) frequency synthesis
from a highly stable crystal oscillator. All units incorporate over-temperature
protection and VSWR foldback to automatically reduce power output to safe
operating levels.
Switch-mode power supplies provide consistent performance even when there are
frequent power outages and voltage fluctuations that make stressful demands on
power dependence.
The 4RU-high (7.0”) PS Series is designed to fit a standard 19” rack.
General
Section
Figure 1-1. PS Series Broadcast Transmitter

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Figure 1-2. PS System Block Diagram

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The PS Series is designed within a 4RU-high (3.5”) form-factor that is 24” deep (including the
front panel and rear protective flanges; the chassis body itself is 17” deep) and 17” wide (19’
including the front panel to fit a standard sized rack).
Features on the PS front panel are shown in Figure 1-3.
Figure 1-3. PS Series Front Panel
Figure 1-4. PS Series Rear Panel

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1.2 Specifications
1.2.1 General
Table 1-1 lists general specifications for the PS Series.
Table 1-1. PS Series General Specifications
Parameter
Description
Dimensions
7.0” (4RU) high
19” (43.2 cm) wide including front panel
24” deep (including the front panel and rear protective
flanges; the chassis body itself is 17” deep)
Weight
Total shipping weight is 95 pounds and includes the
following:
Chassis 70 pounds
Four AC power supplies (packed separately) are 25
pounds
19” Rack-Mountable
with Slide capability

Left and right rack-mount tabs and handles are attached
directly to the chassis.
Temperature
Operating:
Non-Operating:
0°C to +30°C
-40°C to +70°C
Relative Humidity
Operating:
Non-Operating:
8% to 90% non-condensing
5% to 95% non-condensing
Maximum Wet Bulb
Operating:
Non-Operating:
27°C, non-condensing
35°C, non-condensing
Altitude
Operating:
Non-Operating:
0 to 10,000 feet above sea level
0 to 40,000 feet above sea level

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1.2.2 Electrical
Table 1-2 lists the electrical specifications for the PS Series with FM150ES
Exciter.
Table 1-2. PS Series Electrical Specifications
Parameter
Description
Frequency Range
87.7 MHz to 108 MHz
Audio Input Impedance
600 ohms
Audio Input Level (Composite)
-10 dBm
Audio Input Level R & L Stereo Encoder
(optional)
-10 dBm
Frequency Response (Composite)
20 Hz to 15 (90) KHz
Pre-Emphasis
50 or 75 uS
Harmonic Distortion
< 0.15% max
Signal-to-Noise Ratio
> 80 dB rms
RF Output Impedance
50 ohms
Output Connector
7/8 EIA Flange
RF Power Output
2100 for 2kW
2600 for 2.5kW
3150 for 3kW
Harmonic Attenuation
< -70 dB
Power Requirements
220-264 VAC, externally fused 35A
1.2.2.1 System Power
The PS Series is shipped with 4 (dependent on model) “plug-in” AC power
supplies packaged separately to avoid damage. Each AC power supply has a
1500-watt output capacity that auto-ranges single-phase input from a 220 to 264
VAC (47 to 63 Hertz) source. AC is supplied from a rear-mounted power
connector.

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1.3 Packaging and Shipping
The PS Series PTEK Transmitter is packaged in a reusable shipping container.
Approximate weight of an empty container and one (1) AC power cord is 9
pounds (4 kg).
The approximate weight of a PS Series transmitter without power supplies is 70
pounds.
The power supplies are packed separately and weigh 25 pounds.

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Chapter 2
Installation
2.1 Installation Procedures
Caution: Use industry-standard ESD grounding techniques when handling
all components. Wear an antistatic wrist strap and use an ESD-protected
mat. Store ESD-sensitive components in antistatic bags before placing
them on any surface. Handle all IC cards by the front panel or edges only.
There are no operator serviceable parts inside the PS Series; therefore,
replacement, inspection, or adjustment of internal components within the
ES Series requires service by an authorized PTEK technician only. DO
NOT REMOVE THE TOP PROTECTIVE COVER OF THE PS Series
CHASSIS (see following warning).
Warning: Removal of the top protective cover of the PS Series by anyone
other than an authorized PTEK technician will void the product warranty.
Installation
Section

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2.2 Mounting in a Rack
Warning: Make sure that the AC power cord is removed from the AC
input connector on the rear of the PS Series before installing
Figure 2-1. PS Series Rack Slides

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Figure 2-2. Typical Rack Installation

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Figure 2-3. Fitting PS Series into Rack
Figure 2-4. Front Panel Screws
Using the supplied #10 screws with nylon washers, screw the front panel securely to the rack.

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2.3 Installing the Power Supplies
Figure 2-5. Inserting power supplies
1. Place the power supply in the power supply slot.
Figure 2-6. Locking power supplies
2. With the handle in the up position press the power supply fully into the
slot.
3. Fully secure the power supply in place by pressing the handle down.