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10

PTEK

April 2016

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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Содержание 2.5kW PS

Страница 1: ......

Страница 2: ...ion 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 Vo...

Страница 3: ...nger 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...

Страница 4: ...4 PTEK April 2016 injury If the exciter is to be energized by any other source be certain that the chassis is connected to a separate safety ground...

Страница 5: ...ues 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 workstat...

Страница 6: ...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...

Страница 7: ...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 broa...

Страница 8: ...tomatically 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 stressf...

Страница 9: ...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...

Страница 10: ...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 perfo...

Страница 11: ...11 PTEK April 2016 Figure 1 2 PS System Block Diagram...

Страница 12: ...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 ar...

Страница 13: ...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...

Страница 14: ...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 H...

Страница 15: ...r 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 supplie...

Страница 16: ...e 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...

Страница 17: ...7 PTEK April 2016 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...

Страница 18: ...18 PTEK April 2016 Figure 2 2 Typical Rack Installation...

Страница 19: ...19 PTEK April 2016 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...

Страница 20: ...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...

Страница 21: ...t the AC Line to a fused or tripped 220V dual phase AC supply The trip fuse rating should be 35A 2 Connect the power output to the antenna 3 Connect the exciter output to the input connector 4 Optiona...

Страница 22: ...al settings of the system 3 1 Set Up the System To successfully operate the PS Series PTEK Transmitter it must be connected to a correctly matched antenna an exciter and a 220VAC supply Warning PREVEN...

Страница 23: ...2016 3 2 Power Up the System 1 Check that the exciter power is as above 2 Switch the exciter to standby 3 Operate the breaker to apply 220AC to the PS Series 4 Check the following Figure 3 1 PS Serie...

Страница 24: ...he startup sequence has completed and the exciter is generating power the PS Series will also produce power Typically the power is set at the factory to a mid value i e 1500W for the 3000W PS Series T...

Страница 25: ...34 31 34 41 26 600 29 43 29 43 34 37 34 37 45 28 700 31 47 31 47 37 40 37 40 48 30 800 33 50 33 50 39 42 39 42 51 32 900 35 53 35 53 42 45 42 45 55 34 1000 37 56 37 56 44 47 44 47 57 36 1100 39 59 39...

Страница 26: ...key again will display Voltage and Current on the LCD display see Figure 3 4b Figure 3 4b Press the FUNCTION key to read Voltage and Current Note At each screen pressing the LOWER or RAISE key changes...

Страница 27: ...rature exceed 40 degrees Centigrade the power will be reduced to a low value typically around 300W At this time all the controls will be locked out and the stand by LED will flash After a couple of mi...

Страница 28: ...good DC good and Fault In the standby mode the AC good and Fault will be illuminated This is a normal condition In operate mode both the AC good and DC good will be illuminated and the Fault LED will...

Страница 29: ...S Series PTEK Transmitter an antenna and an audio source must first be connected to the system as outlined in the following steps 1 Connect the antenna or power amplifier input to the RF output connec...

Страница 30: ...There is no On Off switch on the PS Series Transmitter As soon as power is introduced to the system through an AC power chord attached to a live AC outlet if the system was powered off while in Stand...

Страница 31: ...AND BY key on the front of the system has turned red or the system has begun the startup sequence thus assuring that the system has powered on see Figure 4 2 Figure 4 2 After Power has been applied to...

Страница 32: ...ress the OPERATE key on the front of the PS Series 2 After the OPERATE key is enabled the LED display will show the initialization sequence and display in order the screens shown in Figure 4 3 Figure...

Страница 33: ...the LCD screen displays the desired setting Stereo Encoder OFF or ON press the FUNCTION key to accept the setting see Figure 3 5 Figure 4 4 Stereo Encoder can be changed through the LCD display 2 To...

Страница 34: ...eds 100 the level needs to be adjusted The output level from the audio source should be adjusted to give a peak deviation of 75 kHZ as described above If the correct deviation cannot be obtained the a...

Страница 35: ...FUNCTION key again will display the audio gain see Figure 4 9 Figure 4 9 Press the FUNCTION key to read Audio Gain Note At each screen pressing the LOWER or RAISE key changes the output power only PA...

Страница 36: ...again results in a screen showing forward and reverse power see Figure 4 11 Figure 4 11 Press the FUNCTION key to read Forward Reverse Power 5 A final pressing of the FUNCTION key will produce a scree...

Страница 37: ...TION keys simultaneously see Figure 4 13 Figure 4 13 Press the LOWER RAISE FUNCTION keys simultaneously The resulting LCD screens will appear as follows 1 Figure 4 14 After a few seconds press the FUN...

Страница 38: ...ipment and are able to make the appropriate measurements 2 Figure 4 15 Use the RAISE LOWER keys to adjust 3 Figure 4 16 3 6 Power Down the System To power down turn off the transmitter press the STAND...

Страница 39: ...connectors that are installed on the PS Series Transmitter rear I 0 Panel see Figure 1 4 on page 11 A 1 Accessory Port The transmitter rear I 0 panel provides a 25 pin male DB25 connector as an acces...

Страница 40: ...Not used 7 Not used 8 Raise ground to raise the output power 9 Not used 10 Not used 11 12 23 24 Ground 13 Remote on ground to turn the unit on momentarily only 14 Reverse power DC indication 2 4V 300...

Страница 41: ...to place an order Toll Free 888 889 2958 Direct 509 290 6652 Email us at customerservice ptekpower com Write to FM Broadcast LLC 111 N Vista Rd Suite 3E Spokane Valley WA 99212 For the latest from PT...

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