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Eagle 2000 – 2kW FM Broadcasting Amplifier

User’s manual – Page 18 of 66

[51]

48V

DC

power supply for the 800W amplifier module #3

– the (black) power resistor is used for the current measurement.

[52]

48V

DC

power supply for the 800W amplifier module #2

– the (black) power resistor is used for the current measurement.

[53]

External stand-by input command

– coming (if present) from the rear panel. A short-circuit between the two contacts sets the

Eagle2000 in stand-by mode.

[54]

Telemetry data bus

– connected with the

REMOTE I/O

port (if present) located on the rear panel.

[55]

Ground.

[56]

15V

DC

power supply

– from aux power supply.

[57]

Data bus with the Power Supply unit

.

[58]

48V

DC

power supply for the 800W amplifier module #1

– the (black) power resistor is used for the current measurement.

[59]

Data bus between the analog board and the CPU board.

[60]

Primary junction for the 48 V

DC

power supply.

[61]

Power supply for the fan control board.

5.5

Fans control board

This board features two separated power supply outputs: a power supply for the two fans cooling the heatsink and another one for
the fan of the power supply unit. The rated power supply is 24 V

DC

, this is why only this service board is powered at 48V

DC

. This

board gets information directly from the R.F. amplifier section via a flat cable.

To assure the maximum reliability, the equipment has been designed to allow the fans operation even if this board is broken
(in this case event the fans will turn at the maximum speed in order to assure the maximum safety).

5.5.a

Fans control board connections

[62]

48V

DC

power supply input

.

[63]

Power supply output for the power supply unit fan.

[64]

Power supply outputs for the fans cooling R.F. amplifier heatsink.

[65]

Data bus from the R.F. amplifier unit

– this flat cable sends data referred to the operation of the

R.F. amplifier unit

. This bus

is common both for the

fans control board

and the

analog board

.

5.6

LCD display and control panel board

This board integrates the LCD display

[6], various LEDs and the

ON/STAND-BY

button

[1] (for further details

Ö

4.2). By

communicating directly with the CPU, the LCD display keeps the user informed with various information and messages (e.g. menus,
alarms etc.).

65

62

63

64

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Summary of Contents for Eagle 2000

Page 1: ...ING SRL Via Copernico 2 20019 Settimo Milanese MI Italy Tel 39 02 023288410 email info quarkelectronics it www quarkelectronics it Eagle 2000 Ultra compact 2 kW FM R F Amplifier User s Manual Revision 1 0 ON STAND BY ...

Page 2: ... our local dealer or agent The manufacturer will not be held responsible for any consequence caused by errors or improper handling on which he has no direct control According to the requirements of our customers the described options may vary from model to model All rights reserved No part of this document can be reproduced in any form or by any means including recording or photocopy without Quark...

Page 3: ...4 Analog board 17 5 4 a Adjustment of the maximum output Power level 17 5 4 b Adjustment of direct and reflected power levels readings 17 5 4 c Analog board connections 17 5 5 Fans control board 18 5 5 a Fans control board connections 18 5 6 LCD display and control panel board 18 5 7 Digital encoder multifunction knob 19 6 INSTALLATION 20 6 1 Checking the supplied parts 20 6 2 General safety rules...

Page 4: ...o Page menu 33 10 SET FUNCTION SIZE MENU 34 10 1 Program page menu 34 10 1 a Function menu 35 10 1 b Power size menu 35 10 1 c Show Timers menu 36 10 1 d Set power saver menu 36 10 1 e Set a new password menu 37 11 MAINTENANCE AND WARRANTY 39 11 1 Maintenance 39 11 1 a Clogging by dust 39 11 1 b Cooling fans 39 11 1 c Periodic overhaul 39 11 2 Warranty 39 12 TROUBLESHOOTING AND ALARMS 40 12 1 Type...

Page 5: ...uirements Interactive control panel with LCD display Enables the user to set easily the equipment modes and commands and to display the operation parameters through the practical multifunction knob Sturdy modular mechanical and electrical construction It guarantees a high MTBF and an easy maintenance High efficiency To control the output power level the output power loop control adjusts first the ...

Page 6: ...equipment contain Beryllium Oxide BeO This substance is harmless as it is but becomes highly dangerous if it s ground to powder Special procedures of disposal must be observed in case of failure of these devices 2 1 a General safety recommendations When connecting the equipment to the power please follow these important recommendations These products are intended to operate from a power source tha...

Page 7: ...onents from PCBs particularly ICs use care to avoid damaging PCB traces 2 1 c First aid in case of electrical shock If someone seems unable to free himself under electric shock contact turn the power off before rendering aid A muscular spasm or unconsciousness can make a victim unable to free himself from the electrical power If power cannot be turned off immediately very carefully loop a length o...

Page 8: ...for burns Continue treat victim for electrical shock Check for points of entry and exit of current Cover burned surface with a clean dressing Remove all clothing from the injured area but cut around any clothing that adheres to the skin and leave it in place Keep the patient covered except the injured part since there is a tendency to chill Splint all fractures violent muscle contractions caused b...

Page 9: ...s security warnings advice and or information of the highest importance If such symbol is not heeded serious problems consequences could arise The written notebook represents practical and important advice which we recommend to follow in order to obtain the best performance possible from the equipment The display messages menu options etc are written in this font bold Courier New Important sentenc...

Page 10: ...ages to both the device and the operator Read and follow all instructions indicated on warning labels or affixed to the device and its accessories The equipment weighs about 15 kg and should therefore be moved or carried exclusively with the proper equipment and the due caution Do not turn the equipment on without having duly wired and connected it as explained in chapter 6 Always follow the laws ...

Page 11: ...C type connector for sourcing the low level RF signal this function is useful for connecting to external measurement units The signal attenuation is 50 dB RF MONITOR output does not guarantee an output level that is perfectly constant versus frequency As such it cannot be used for precision spectrum measurements 4 2 Control panel The control panel commands are the followings 6 LCD Liquid Crystal D...

Page 12: ...is N type connector The equipment can be supplied with an optional N N cable to connect the amplifier to the exciter 13 Exhaust cooling air outlet the exhaust cooling air which came into the equipment through the front ventilation grid used to cool the power supply unit exits from this outlet 14 POWER ON OFF it enables to switch on off the main power supply After the first switch on when installin...

Page 13: ...Ö5 3 installed underneath the analog board 23 Fans control board Ö5 5 24 Main power supply switch and AC power supply relay 25 Power Supply unit Ö5 1 26 Amplifier section 3 ways Wilkinson splitter 27 Amplifier section 800W power modules 28 Amplifier section 3 ways Wilkinson combiner 29 Amplifier section Low pass filter 30 Amplifier section Directional couplers 19 20 23 25 29 30 28 27 26 Front side...

Page 14: ...tage In order to avoid this use only insulated tools and never touch the main power supply switch or the power sockets when the equipment is connected to the power line Do not operate the equipment without the covers properly screwed on If the top cover is removed malfunctioning of the equipment may occur as well as of any other electronic measuring instrument owing to the strong R F fields involv...

Page 15: ...and the low level R F signals connected to the R F Monitor output connector located on the front panel The RF input signal must be between 25 and 30W This value doesn t affect the output power level because the amplifier s output power adjustment isn t obtained by changing the input level from the exciter but adjusting the amplifier s section gain by means of the proper menu This solution which gu...

Page 16: ...trol board can be used as universal spare part for all the Eagle models because it stores the programs for all of them If there is an equipment with such board broken you can easily replace it just by setting the right model with the Set Function Size menu Ö10 5 3 a Control board connections and commands 39 Data bus with the 4x20 display 10 pole connector 40 On stand by secondary switch 41 On stan...

Page 17: ...quipment is powered the fans will start turning at the minimum speed Then the control board will change their speed according to the heatsink temperature i e the environmental one 5 4 a Adjustment of the maximum output Power level With the equipment working increase the level of the input R F driving power until the output one reaches 2400W measured with a hi precision power meter Now with RV3 adj...

Page 18: ... a power supply for the two fans cooling the heatsink and another one for the fan of the power supply unit The rated power supply is 24 VDC this is why only this service board is powered at 48VDC This board gets information directly from the R F amplifier section via a flat cable To assure the maximum reliability the equipment has been designed to allow the fans operation even if this board is bro...

Page 19: ...olds the rotary digital encoder directly connected to the multifunction knob 7 The board communicates directly with the Control CPU board Ö5 3 which detects the user commands clockwise rotations counterclockwise ones as well as pushbutton operations The proper operation of the digital encoder is detected by the Control CPU board and checked by the dedicated menu Ö9 5 c Encoder Analog board ON STAN...

Page 20: ... AC power line Dangerous AC DC and radio frequency voltages are available inside and become accessible when the covers are removed 6 3 Placing the equipment 6 3 a Choosing the proper room and location Install the equipment in a dry sheltered but well ventilated room away from dust moisture insects rodents and vermin e g mice Room size shall be such that the equipment can be placed in an upright po...

Page 21: ...ons its useful life span will increase and above all the incidence of accidental breakdown due to environment or power line trouble will be reduced 6 4 Connecting the equipment 6 4 a Connecting the antenna A 7 16 output connector is fitted to the rear of the amplifier module It s very important to check that antenna cables and connectors are suited for 2kW The antenna divider is also expected to h...

Page 22: ...e driving power never exceeds 30W Proceed in the following way 1 Connect the exciter to an independent AC power line 2 Connect the exciter s R F output to a suitable dummy load 3 Switch the exciter on 4 Set the exciter R F output power to zero 5 Check that the correct FM frequency of the exciter is set 6 Switch the exciter off and connect the R F IN connector of the amplifier 12 to the exciter s o...

Page 23: ...urn on the display will briefly show some screenshots before entering in Stand by mode In such case go to the next step 5 Keep the ON STAND BY button 1 pressed for a couple of seconds the amplifier and the fans will turn on The display briefly shows some screenshots At the end the green ON LED will steadily glow and the working page the one normally shown in the normal operation Ö9 2 will steadily...

Page 24: ...estruction of the R F power stage Such failures are not covered by our standard warranty Step 11 the previous images refer to the first switch on with the equipment in stand by mode In this condition power value is in percentage and referred to a logarithmic scale meaning for example that the setting 50 will be about of the rated power level 1500W When the equipment is normally working the SET For...

Page 25: ...d Second 24 Turn the knob counterclockwise in order to move the cursor downward to the left of Confirm Changes the last option 25 Press the knob to confirm the settings and come back to the main menu 26 Turn the knob clockwise in order to move the cursor upward to the left of Working Page the first option 27 Press the knob The display will go back to the working page The installation of the amplif...

Page 26: ...adcasting Amplifier User s manual Page 26 of 66 7 1 e Turning off 1 Keep the ON STANDBY button 1 pressed for a couple of seconds setting the equipment in stand by mode 2 Turn off the POWER ON OFF switch 14 on the rear panel ...

Page 27: ...f the knob is the following 1 From the working page Ö9 2 2 Press the knob The display will show the main menu which is split in two pages 3 Turn the knob until the cursor on the left points one of the over stated menus 4 Press the knob to select the needed menu 5 If necessary according to the selected menu repeat one or two times these last two steps in order to access to further submenus e g in t...

Page 28: ...he parameters or way of operation of the amplifier e g Set Power Output Apart some exceptions e g Language which is in the main menu the following operation are needed to confirm the entered settings 1 Be sure to have entered the needed setting e g the output power as shown below 2 Turn the knob counterclockwise in order to move the cursor to Confirm Changes 3 Press the knob to save the settings a...

Page 29: ...he amplifier In fact inside the menu after 4 minutes of inactivity no actions on the knob a timer automatically quits the menu restoring the working page These are the information displayed in it QUARK EAGLE rev 1 06 model of the equipment and software revision Forward Power forward power level Reflected Power reflected power level 10 Sep 2010 12 04 42 system date and time see bottom note To acces...

Page 30: ...ob For information about these commands Ö8 3 9 5 Debug Page menu This menu shows some analog measurements forward and reflected output power driving input power bias voltage temperature of the heatsink etc checks the operation of the ON STAND BY button and digital encoder of the multifunction knob It also shows the presence of a stand by command coming from the REMOTE I O connector 16 and any even...

Page 31: ... Inputs menu This menu allows to check the proper operation of the ON STAND BY button by checking its dedicated contacts of the control board Moreover it shows the presence of an external stand by command coming from the REMOTE I O connector 16 Finally it shows if one or more alarms are currently released Ö12 2 1 From the Debug Page Ö9 5 select Logic Inputs 2 Press the knob The Logic Inputs page w...

Page 32: ... you are still inside the main menu so no operation are necessary to come back to it Instead you might decide to come back to the working page by turning the knob clockwise in order to move the cursor upward to the left of Working Page the first option then press the knob to come back to the working page 9 7 Set Function Size menu It s a special password protected technical menu For detailed infor...

Page 33: ...o par 7 1 b in which this menu is already explained After you entered the clock settings don t forget to confirm them select Confirm Changes and press the knob or to quit the menu without changing the previous setting select Ignore Changes and press the knob For information about these commands Ö7 3 9 10 Info Page menu This menu shows the contact information of Quark email technical support teleph...

Page 34: ...he second digit 4 Repeat the last step until all the six digits have been set When the knob is pressed the sixth time the whole password will be entered 5 If the password is correct the following page will be shown if not the display will go back to main menu ENTER to access Program page to access the program page press the knob Ö10 1 UP DOWN to set new password to change the password turn the kno...

Page 35: ...ed setting select Confirm Changes and press the knob or to quit the menu without changing the previous setting select Ignore Changes and press the knob Step 3 note that you are still inside the program page so no operations are necessary to come back to it but you haven t still stored the entered setting so performing step 4 is mandatory If the equipment is used within a broadcasting system set to...

Page 36: ...nu This option sets a certain time in which the equipment automatically reduces its output power e g during some hours in the night You can set both the needed power reduction as well as the low power time in which it will be automatically set 1 In the program page Ö10 1 turn counterclockwise the knob scrolling down until Set power saver 2 Press the knob the Set power saver menu is shown For Power...

Page 37: ...er value will be about of the rated power level about 1500W Steps 7 and 10 the start and end time are in 24 hours format In the over stated example it will start from 1 10 A M and will end to 2 19 A M Step 7 the ending time End h m must be subsequent to the starting one Start h m otherwise the power saver time will start at the ending time and will end at the starting hour Step 11 The Previous Men...

Page 38: ...w password The display will lead to the main menu 6 Note down the new password in a secure place Don t forget to note down the new password otherwise you won t be able to access again the Set Function size menu To recover a forgotten password please contact Quark Technical Support In case you forgot the new password to recover it please contact Quark Technical Support ...

Page 39: ...aul After a few years of continuous service it is advisable to have the equipment overhauled in our factory or in a appointed laboratory where its operation can be checked against the initial parameters In addition any necessary maintenance operations can be carried out It is also particularly important to overhauled the equipment when it has been working at high temperatures over 30 35 C Never ch...

Page 40: ...rms the equipment status automatically reverts from the stand by mode to the operation one Non critical alarms Reflected power level equal to 200W when reaching this value the equipment reduces its output power in order to keep the reflected power below 200W The ALARM LED glows but the unit is still working If the reflected power exceeds the 200W threshold the alarm becomes a critical one and the ...

Page 41: ... E causes or internal I problems of the amplifier Alarm message Meaning Suggestions REFLECTED POWER ALARM The reflected power is too high The load antenna doesn t match the 50 Ohm impedance Check the antenna connections E ENVIRONMENT TEMP ALARM The room temperature exceeds 45 C Check the reasons of the rise of temperature room ventilation system air conditioning system etc E HEATSINK TEMP ALARM Th...

Page 42: ...100 AM 400Hz Synchronous AM S N ratio 60dB with FM 57kHz 400Hz R F output connector 7 16 flange R F input connector N type Monitor connector BNC Operating temperature range from 10 to 45 C Relative humidity 90 MAX Power supply 180 240VAC Dimensions 19 2 units rack 500 mm depth Weight 15 kg Efficiency 77 Cooling system Forced ventilation CPU controlled Input output air temperature difference 15 C T...

Page 43: ...iter 22 Connections AC power line 21 antenna 21 exciter 22 Control panel 11 D Date and time setting 24 Digital encoder 11 Display Dir Ref power readings adjustment 17 Display language setting the 24 E Electrical conditions 21 Error messages messages table 41 F First aid 7 Forgotten password 38 G General safety recommendations 6 General safety rules 20 I Installation 20 Introduction 5 L LEDs ALARM ...

Page 44: ...ol panel 11 front view 11 rear view 12 Placing the equipment climatic conditions 20 electrical conditions 21 proper room 20 Power supply cable 12 S Safety general rules 20 Safety suggestions 6 Set Function Size menu 34 T Technical features 42 Turning off 26 Turning on 23 Type of room 20 U Use of the menus 27 Use of the multifunction knob 27 Used symbols 9 W Warnings 10 Warranty 39 ...

Page 45: ... 1EL105 Circuit diagram 1 2 53 Figure 9 Logic board 1EL105 Circuit diagram 2 2 54 Figure 10 Logic board 1EL105 Part layout 55 Figure 11 Logic board 1EL105 Part list 1 2 56 Figure 12 Logic board 1EL105 Part list 2 2 57 Figure 13 LED board Part layout 58 Figure 14 Power Supply unit Circuit diagram 1 7 59 Figure 15 Power Supply unit Circuit diagram 2 7 60 Figure 16 Power Supply unit Circuit diagram 3...

Page 46: ...Eagle 2000 2kW FM Broadcasting Amplifier User s manual Page 46 of 66 Figure 1 Front view ON STAND BY ...

Page 47: ...Eagle 2000 2kW FM broadcasting Amplifier User s manual Page 47 of 66 Figure 2 Rear view RF OUTPUT 50 OHM RF IN GROUND POWER ON OFF REMOTE I O 230Vac ...

Page 48: ...Eagle 2000 2kW FM broadcasting Amplifier User s manual Page 48 of 66 Figure 3 Top view open ...

Page 49: ...4D3 5 4 1 2 GND RESET INPUT R3 1K SB3 R13 10K C1 10uF R9 10R TP7 C42 100nF LD1 LED RESET R7 10K R2 10K LD3 LED J2 CON2 1 2 U4E 40106 11 10 U4F 40106 13 12 14 7 SB1 U4C 40106 5 6 C8 100nF C12 18pF U7 ATmega128 20 34 18 62 24 23 43 33 64 2 52 21 22 53 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 25 26 27 28 29 30 31 32 19 51 50 49 48 47 46 45 44 35 36 37 38 39 40 41 42 61 60 59 58 57 56 55 54 63 1 RESET PG...

Page 50: ...5 100nF C25 100nF C33 100nF C48 100nF U8F 40106 13 12 14 7 C13 100nF C46 100nF C26 100nF U6 ISL1218IBZ 5 2 6 4 7 1 3 8 SDA X2 RTCLK GND RST X1 Vbck VCC R30 33K C11 100nF C36 100nF C47 100nF C27 100nF C15 100nF R29 10K C9 100nF C39 100nF R27 10K C16 100nF C34 100nF R28 10K C38 100nF C10 100nF CN3 CON16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 U8C 40106 5 6 C35 100nF C43 100nF U8A 40106 1 2 C44 100nF ...

Page 51: ...Eagle 2000 2kW FM broadcasting Amplifier User s manual Page 51 of 66 Figure 6 Control board 1EL104 Part layout ...

Page 52: ...MASCHIO 7 1 CN5 MASCOM 4x1 Passo 2 54 8 4 C1 C2 C4 C14 10uF 16V SMT Elettr CASE B 9 2 C3 C5 10nF 50V X7R 0805 10 2 C12 C7 18pF 0805 11 1 E1 AD22100 T092 12 1 J1 CON13x2 Passo 2 54 13 1 J2 MASCOM 2x1 Passo 2 54 14 3 LD1 LD2 LD3 LED VOLANTI 15 1 Q1 BC817 SOT23 16 2 R9 R1 10R 0805 17 19 R2 R7 R8 R10 R11 R13 R15 10K 0805 R16 R18 R19 R20 R21 R22 18 R23 R25 R26 R27 R28 R29 19 3 R3 R12 R14 1K 0805 20 3 R...

Page 53: ...K C1 100nF C78 100nF U4A TLC272 3 2 1 8 4 R10 1K5 C48 100nF C37 100pF J1 CON26 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 U2C TLC274 10 9 8 4 11 C10 100nF C18 100nF D13 LM4050 R3 10K R17 10K C42 2 2uF 25V 1210 C30 100nF C51 100nF R37 220R C65 18pF R41 10K C3 100nF C23 100nF R61 22K R44 22K R12 10K RV1 10K C2 100nF U3C TLC274 10 9 8 4 11 U2A TLC274 3 2 1 4 11 R53 3K3 R38 3...

Page 54: ... LM25007 8 4 7 3 6 2 1 5 Vin GND VCC RCL RON OSD BST SW FB D7 4 7V MINIMELF R94 4K3 U9 ZXCT1009 A 3 2 1 Iout Vsense Vsense C73 100nF J4 MOR6 1 2 3 4 5 6 R87 10K C53 100nF R84 4K3 C59 100nF R92 10K Q7 BCX53 D19 4 7V MINIMELF R80 5mOhm Q5 BCX53 D18 4 7V MINIMELF C72 100nF C88 10nF C86 100nF R73 2K2 R71 1K C60 1nF D8 4 7V MINIMELF C63 100nF C55 100nF C52 1nF U8 ZXCT1009 A 3 2 1 Iout Vsense Vsense R11...

Page 55: ...Eagle 2000 2kW FM broadcasting Amplifier User s manual Page 55 of 66 Figure 10 Logic board 1EL105 Part layout ...

Page 56: ... C76 C77 C78 C79 C80 C81 C82 C83 C84 C85 C86 C93 2 11 C6 C11 C24 C28 C52 C54 1nF C56 C58 C60 C62 C67 3 5 C32 C33 C37 C38 C39 100pF 4 2 C34 C75 2 2nF 5 1 C40 2 7nF 6 2 C42 C71 2 2uF 25V 1210 7 2 C66 C64 10uF 35V 8 1 C65 18pF 9 2 C88 C74 10nF 10 1 C87 220uF 25V 11 4 C89 C90 C91 C92 4 7uF 10V 12 7 D1 D2 D3 D4 D5 D27 D28 BAS21 13 13 D7 D8 D9 D10 D11 D12 D15 4 7V MINIMELF D16 D17 D18 D19 D20 D21 14 1 D...

Page 57: ...21 R22 R28 R31 R34 R45 100K R51 R109 42 25 R23 R24 R25 R26 R29 R30 1K R32 R33 R36 R39 R40 R47 R48 R49 R52 R57 R63 R66 R71 R76 R81 R86 R91 R111 R112 43 1 R37 220R 44 3 R38 R43 R53 3K3 45 1 R42 12K4 46 2 R61 R44 22K 47 2 R105 R56 680R 48 7 R59 R69 R74 R79 R84 R89 4K3 R94 49 6 R65 R70 R75 R80 R85 R90 5mOhm 50 6 R68 R73 R78 R83 R88 R93 2K2 51 1 R100 6K19 52 1 R102 110K 53 2 R103 R104 100R 54 2 R110 R1...

Page 58: ...Eagle 2000 2kW FM Broadcasting Amplifier User s manual Page 58 of 66 Figure 13 LED board Part layout ...

Page 59: ...Eagle 2000 2kW FM broadcasting Amplifier User s manual Page 59 of 66 Figure 14 Power Supply unit Circuit diagram 1 7 ...

Page 60: ...Eagle 2000 2kW FM broadcasting Amplifier User s manual Page 60 of 66 Figure 15 Power Supply unit Circuit diagram 2 7 ...

Page 61: ...Eagle 2000 2kW FM broadcasting Amplifier User s manual Page 61 of 66 Figure 16 Power Supply unit Circuit diagram 3 7 ...

Page 62: ...Eagle 2000 2kW FM broadcasting Amplifier User s manual Page 62 of 66 Figure 17 Power Supply unit Circuit diagram 4 7 ...

Page 63: ...Eagle 2000 2kW FM broadcasting Amplifier User s manual Page 63 of 66 Figure 18 Power Supply unit Circuit diagram 5 7 ...

Page 64: ...Eagle 2000 2kW FM broadcasting Amplifier User s manual Page 64 of 66 Figure 19 Power Supply unit Circuit diagram 6 7 ...

Page 65: ...Eagle 2000 2kW FM broadcasting Amplifier User s manual Page 65 of 66 Figure 20 Power Supply unit Circuit diagram 7 7 ...

Page 66: ...onform with the essential radio test suites so that they effectively use the frequency spectrum allocated to terrestrial space radio communication so to as to avoid harmful interference as included in the following standards Standard reference Test report by PRIMA RICERCA SVILUPPO EN 302 018 2 V1 2 1 EN 302 018 1 V1 2 1 EN 301 489 11 V1 3 1 EN 301 489 1 V1 7 1 And therofor compliers with the essen...

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