Elettronika AUTV/2000LD User manual

AUTV/2000LD
LDMOS - UHF TV Amplifier
Users manual
CODE: APT088A TITLE: AUTV/2000LD REV: 0 DATE: 17/02/03

SS 96 Km 113
70027 Palo del Colle (Ba) ITALY
Tel. [phone]
Fax [phone]
E-mail:[email protected]
Web siste: http://www.elettronika.it
Registration number: IT-17686
Registration number: IT-24436

Index
Index................................................................................................................................... 3
Warning .............................................................................................................................. 5
Warranty ............................................................................................................................. 6
Introduction ....................................................................................................................... 7
Content of the manual....................................................................................................... 7
Treatment of electrical shock ........................................................................................... 9
First-aid ......................................................................................................................... 10
Treatment of electrical burns.......................................................................................... 10
Note ............................................................................................................................... 10
APT088A AUTV/2000LD .................................................................................................. 11
Description .................................................................................................................... 12
Technical characteristics ............................................................................................... 13
APT088A AUTV/2000LD - Component list ....................................................................... 15
APG012B AMPLIFIER CONTROL ................................................................................... 17
1.1 Functions ................................................................................................................. 18
1.2 Programming mode................................................................................................. 20
1.3 Setting...................................................................................................................... 20
- FWD Power calibration............................................................................................. 20
- REF Power calibration.............................................................................................. 21
- UNB Calibration.......................................................................................................21
1.4 Remote control ........................................................................................................ 21
1.5 RS232 and RS485 Pin tables.................................................................................. 22
1.6 Telemeasuring pins table ........................................................................................ 23
1.7 Other tables.............................................................................................................. 24
Front panel .................................................................................................................... 26
Rear panel ..................................................................................................................... 27
APG012B AMPLIFIER CONTROL - Component list ...................................................... 29
SCH0109BR0 (Master board) ....................................................................................... 31
SCH0110BR0 (Analog input for master board).............................................................. 39
SCH0152AR0 (230VAC Switching board) ..................................................................... 42
SCH0153AR0 (In/Out digital for APG012B)................................................................... 45
S-50-24 (Switching power supply) .................................................................................. 48
APT084ASF AUTV/1000LD ............................................................................................. 53
Section 1 - Information .................................................................................................... 55
1.1 Description............................................................................................................... 56

1.2 Technical characteristics.......................................................................................... 57
Section 2 - Installation..................................................................................................... 59
2.1 Operating environment ............................................................................................ 60
2.2 Preliminary operations............................................................................................. 60
2.3 Telemeasuring socket connections ......................................................................... 61
2.4 RS232 and RS485 socket connections ................................................................... 61
2.5 SCH0005AR1 Calibration procedure ...................................................................... 62
- Power supply voltages and currents calibration........................................................ 62
- Temperature calibration ........................................................................................... 63
- Forward power calibration .........................................................................................63
- Reflected power calibration ...................................................................................... 63
2.6 Preventive maintenance ..........................................................................................64
Front panel .................................................................................................................... 65
Rear panel..................................................................................................................... 66
Section 3 - Diagram ......................................................................................................... 67
Cable diagrams ............................................................................................................. 68
APT084ASF AUTV/1000LD - Component list .................................................................. 71
SCH0005AR1 (Protection board) .................................................................................. 73
SCH0004AR0 (Relay board) ......................................................................................... 82
PN502 (Display board) .................................................................................................. 87
MTF0050AR0 (1kW LDMOS Power module) ................................................................ 90
SP500-27/48 (Switching power supply) .......................................................................... 94
06641 (UHF Band-pass filter) ...................................................................................... 102

5
WARNING
The apparatus described in this manual has been designed and manufactured with devices to safe-
guard the users. In any case it is recommended that during any operation of installation, maintenance,
miscellaneous interventions and calibrations requiring the apparatus to be switched on,
THE USER TAKES ALL THE
PRECAUTIONS AGAINST INCIDENTS
It is required to use the proper clothes and protection gloves in order to prevent damages from inci-
dental contacts with high-voltage parts.
The manufacturer declines every responsibility in case the recommendations above are not followed.
IMPORTANT
The component lists attached to the relevant electrical diagrams indicate for each item the reference,
the description and the type normally used.
The Elettronika S.r.l. though reserves the right to use or supply as spare parts components with
equivalent characteristics but of a different type, assuring anyway the optimal work of the apparatus
in accordance with the specifications.
The enclosed monographs are solely owned by Elettronika S.r.l.
Theuseofanythingenclosedinthistechnicalmanual without explicit authorization given byElettronika
S.r.l. will be prosecuted by the law.
The data and technical characteristics of the apparatus described in this manual are not compelling for
the manufacturer.
The Elettronika S.r.l. reserves the right to make, without previous notice, modifications or updates in
order to improve the quality of the product.
The general conditions of supply and sale are described in the contracts.
The delivery time are in accordance with the products and quantities ordered.

6
Summary of warranty
We, ELETTRONIKA S.r.l., SS096 Km 113 Z.I. PALO DEL COLLE (BA) ITALY, warrant to the ORIGINAL PURCHASER of a NEW product, for a
period of one (1) year from the date of purchase by the original purchaser (the “warranty period”) that the new ELETTRONIKA product is free of defects
in materials and workmanship and will meet or exceed all advertised specifications for such a product. This warranty does not extend to any subsequent
purchaser or user, and automatically terminates upon sale or other disposition of our product.
Items excluded from this ELETTRONIKA warranty
We are not responsible for product failure caused by misuse, accident, or neglect. This warranty does not extend to any product on which the serial
number has been defaced, altered, or removed. It does not cover damage to loads or any other products or accessories resulting from ELETTRONIKA
product failure. It does not cover defects or damage caused by use of unauthorized modificstions, accessories, parts, or service.
What we will do
We will remedy any defect, in material or workmanship (except as excluded), in our sole discretion, by repair, replacement, or refund. If a refund is
elected, then you must make the defective or malfunctioning component available to us free and clear of all liens or other encumbrances. The refund will
be equal to the actual purchase price, not including interest, insurance, closing costs, and other finance charges less a reasonable depreciation on the
product from the date of original purchase. Warranty work can only be performed at our authorized service centers or at our factory. Expenses in
remedying the defect will be borne by ELETTRONIKA, including one-way surface freight shipping costs within the United States. (Purchaser must bear
the expense of shipping the product between any foreign country and the port of entry in the United States and all taxes, duties, and other custom’s fee(s)
for such foreign shipments).
How to obtain warranty service
You must notify us of your need for warranty service not later than ninety (90) days after the expiration of the warranty period. We will give you an
authorization to return the product for service. All components must be shipped in a factory pack or equivalent which, if needed, may
Desclaimer of consequential and incidental damages
You are not entitled to recover from us any consequential or incidental damages resulting from any defect in our product. This includes any damage
to another product or products resulting from such a defect.
Warranty alterations
No person has the authority to enlarge, or modify this warranty. The warranty is not extended by the lenght of time for which you are deprived of
the use of the product. Repairs and replacement parts are provided under the terms of this warranty shall carry only the unexpired portion of this
warranty.
Design changes
We reserve the right to change the design of any product from time to time without notice and with no obligation to make corresponding changes in
products previously manufactured.
Legal remedies of purchaser
There is no warranty which extends beyond the terms hereof. This written warranty is given in lieu of any oral or implied warranties not contained
herein. We disclaim all implied warranties, including without limitation any warranties of merchantability or fitness for a particular purpose. No action
to enforce this warranty shall be commenced later than ninety (90) days after expiration of the warranty period.
Warranty for electronic tubes
The warranty applied for electronic tubes is the one given by the manufacturer of the tube. In the event that the product shows anomalies within the
deadline of the validity of the warranty given by the manufacturer of the product itself, the buyer will have to return it to the seller with the needed
documents and the written description of the defect. The seller will ship the broken tube to the manufacturer in order to effect the necessary technical
tests to find out the cause of the anomaly. Meanwhile the buyer of the tube who needs to use, and as such to replace immediately the product, will have
to buy a new one and provide to the relevant payment, further to the issuing by the seller of a regular commercial invoice. After the adequate tests made
by the manufacturer, should the result be positive, that is confirm the defect in manufacturing, the seller will issue a regular credit note in the name of
the buyer and return the amount paid. Should the result be negative, that is detect a negligence in the installation or use by the buyer, he will have no
right against the seller.
Warranty

7
INTRODUCTION
The apparatus described in this manual is the latest of this series, offering high performances, remark-
able reliability and a wide range of characteristics, it all at a low cost.
Its is easy to install and use. It only takes to follow the installation procedure as shown in this manual:
after having removed all from the package, you only have to follow step by step the description in the
various sections.
Before starting to use the apparatus, remember to:
read carefully the general safety information contained in this section;
follow the instructions for the installation and set up of the apparatus;
read all the remaining sections of this manual in order to know well the apparatus and learn
how to obtain the best of its characteristics.
CONTENTSOFTHEMANUAL
The chapter composing this manual contain all the information concerning the use of the apparatus.
Formoreinformationrefer toELETTRONIKAS.r.l.
This manual is made up of different chapters, each made up of various sections. Each individual
chapter represents a single apparatus composing the whole station.

8
WARNING!
The currents and voltages in this equipment are dangerous!
Personnel must at all times observe safety regulation!
This manual is intended as a general guide for trained and qualified personnel who are aware of the
dangers inherent in handling potentially hazaedous electrical and electronic circuits.
It is not intended to contain a complete statement of all safety precautions which should be observed by
personnel in using this or other electronic equipment.
The installation, operation, maintenance and service of this equipment involves risks both to personnel
and equipment, and must be performed only by qualified personnel exercising due care.
Elettronika S.r.l. shall not be responsible for injury or damage resulting from improper procedures or
from the use of improperly trained or inexperienced personnel performing such tasks.
During installation and operation of this equipment, local building codes and fire protection standards
must be observed.
WARNING!
Always disconnect power before opening covers,
doors, enclosures, gates, panels or shields.
Always use grounding nsticks and short out high
voltage points before servicing. Never make
internaladjustments, perform maintenance or
service when alone or when fatigued.
Do not remove, short-circuit or tamper with interlock switches on access covers, doors, enclosures,
gates, panels or shields.
Keep away from live circuits, know your equipment and don’t take chances.
WARNING!
In case of emergency ensure that power has been disconnected.

9
A-AIRWAY
If unconscious, open airway lift up neck, push
forehead back, clear out mouth if necessary,
observe for breathing.
Treatment of electrical shock
1)Ifvictimis not responsivefollowtheA,B, C’sofbasiclifesupport.
PLACEVICTIM FLAT ON HIS BACK ON A HARD SURFACE
B- BREATHING
If not breathing, begin artificial breathing. Tilt
head, pinch nostrils, make airttght seal, 4 quick
full breaths. Remember mouth to mouth resuscita-
tion must be commenced as soon as possible.
C-CIRCULATION
Check carotid pulse. If pulse
absent, begin artificial circulation. Approx. 80sec.: 1 rescuer, 15 compressions, 2 quick breaths. Approx. 60sec.: 2 rescuers, 5 compressions, 1 breath.
NOTE:DONOTINTERRUPTRHYTHMOFCOMPRESSIONSWHEN
SECONDPERSONISGIVINGBREATH.
Callformedicalassistanceas soon aspossible.

10
2)Ifvictimisresponsive:
- keep them warm;
- keep them as quiet as possible;
- loosen their clothing (a reclining position is recommended).
FIRST-AID
Personnel engaged in the installation, operation, maintenance or servicing of this equipment are urged
to become familiar with first-aid theory and practices. The following information is not intended to be
a complete first-aid procedure, it is brief and is only to be used as a reference. It is the duty of all
personnel using the equipment to be prepared to give adequate Emergency First Aid and thereby pre-
vent avoidable loss of life.
TREATMENTOFELECTRICALBURNS
1) Extensive burned and broken skin.
- Cover area with clean sheet or cloth (cleansed available cloth article);
- do not break blisters, remove tissure, remove adhered particles of clothing, or apply any salve or
ointment;
- treat victim for shock as required;
- arrange transportation to a hospital as quickly as possible;
- if arms or legs are effected keep them elevated.
NOTE
If medical help will not be available within an hour and the victim is conscious and not vomiting, give
him a weak solution of salt and soda: 1 level teaspoonful of salt and 1/2 level teaspoonful of baking
soda to each quart of water (neither hot or cold).
Allow victim to sip slowly about 4 ounces (half a glass) over a period of 15 minutes.
Discontinue fluid if vomiting occurs (do not give alcohol).
2) Less severe burns - (1st & 2nd degree).
- Apply cool (not ice cold) compresses using the cleansed available cloth article;
- do not break blisters, remove tissue, remove adhered particles of clothing, or apply salve or ointment;
- apply clean dry dressing if necessary;
- treat victim for shock as required;
- arrange transportation to a hospital as qickly as possible;
- if arms or legs are affected keep them elevated.

11
LDMOS - UHF AMPLIFIER
AUTV/2000LD
User’smanual
O
MICROPROCESSORCONTROLLEDSYSTEM
RS232
POWER

12
AUTV/2000LD
LDMOS - UHF TV AMPLIFIER
DESCRIPTION
TheAUTV/2000LDis aTVamplifierthat canbeusedintheIV/VBdUHF.Tuttiglistadidi amplificazione
utilizzanocomponenticontecnologiaLDMOS,ottenendoeccellentiprestazioniinterminidiguadagno e
soprattuttodilinearità.
Thankstothehigh-qualitycomponents used andthestrongstructureitcan be used eveninthemosthostile
environmentswiththeminimummaintenance.
Itiscomposed bytwoamplifiersAUTV/1000LDcoupledbymeansof3dB/90°hybrid couplersensuringan
highinsulationbetweenthe apparatusesandavery goodinputreturnloss.
TheamplifierAUTV/2000LDhasbeendesigned usingadvancedtechnologies madeforbroadcastingappli-
cations.Allofits components havebeentestedwiththermic shocksinordertoobtain a veryhighreliability
andanhighMTBF.
A microprocessor control unit controls the apparatus, checking the thermic, electric and RF parameters,
interveningincase ofproblemsandshowingthewholefunctioningstatusona largeLCD display.
The purity of the spectrum is ensured by a band-pass filter which removes all the out-of-band spurious
emissionsfarbeyondthelevelrequired bytheregulations.
Thetransmitteris providedwithlinearitypre-corrector tocompensatethedistortionsofthefinalstage.

13
TECHNICALCHARACTERISTICS
RFSECTION
Frequency range 470-860MHz
Vision/Sound amp. Common
Output power 2000W peack sync.
Output power control Automatic or manual (switch-selected)
Output frequency stability 2,5ppm(option 0,05ppm)
Out stage technology LDMOSSolid State
I.M.D. < -54dB(withIF-Precorrector)
Spurious and harmonics level <-60dB
RF Output impedance 50Ω
RF Output connector EIA7/8”
Intermediate frequency 38.9 or 45.75MHzon request
SOUNDSECTION
Input level 1Vpp(adj.)
Input impedance 600ΩBalanced
Input connector Twinax
Pre-emphasis 50µs
Frequency response 30Hz-15kHz,±0.5dB
Total harmonic distortion <-0.5%
FM Signal noise ratio >-68dB
(referredto +/-50kHz dev. f= 400Hz) >-60dB (unweighted)
VIDEOSECTION
Input level 1Vpp
Input impedance 75Ω
Return loss 26dB
Differentialgain <5%
Differential phase <5°
Group delay ±40ns
Input connector BNCFemale
Sideband spectrum response According to the standard
Amplitude frequency response According to the standard
GENERAL
Power supply 230Vac,±10%,50/60Hz
400Vac 3P+N(onrequest)
RS232Socket DB9 Connector (onAmplifierControl)
Telemeasuring socket DB25 Connector (onAmplifierControl)
AGCSocket DB9 Connector(on AmplifierControl)
I2CBUSSocket 2xDB9 Connector (onAmplifier Control)

14
Ambient temperature -5° to +45°C
Humidity 20% - 90%
Cabinet Rack19”-28U
Dimensions 560x1000x1460mm
Weight 300kg
PROTEC.THR.(AUTV/1000LD)
FWDPower 1200W
REFPower 100W
Temperature 70°C
IDCDRIVER 12A
IDCAMPLIFIER 20A
VDCDRIVER 31V
VDCAMPLIFIER 33V

15
PartNameCode Description Qty
APT084ASF CASSETTOAMPLIF. UHF 1kW LDMOS220V 2
APG016A CARICOFITTIZIO50Ω1kWUHF 1
06641 BANDPASS FILTERUHF 1kW CL4NL227/16 1
APG012B CASSETTOCONTROLLOAMPLIFICATORE 1
06816A ACCOP.3dBIBRIDO2.5kWUHFm/f 1
MTG0045AR0 ACCOP.DIR.CONPRELIEVO-50/-40dB 1
CMS6006 CAVO 1/2”DA1mtCONN.7/16(M)BN203391 1
CMS6007 CAVO 1/2”DA2mtCONN.7/16(M)BN203388 1
06811B ACCOP.IBRIDO3dB300WCONCARICO20W 1
02408 SP 10/12 90° 7/16M+F90° 1
08510 CABLERG21350Ω3,20
02201 CONNET.NmxRG213GE15015C4 5
02230 R161270000(Nflg.RG213) 1
08504 CABLERG5850Ω5,50
02015 R141082161BNCACRIMP.xRG58 5
02502 J01150A0041SMA xRG58/c 1
02576 TAPPORIV.CONHP2800 2
02205 NM 90°xRG58CRIMPAREGE15142D/60 2
08503 CABLERG30350Ω0,20
07625A CONDENSATORE3uFCONFILI 1
07620 GRIGLIAALTAG025001-00-01 1
07625 VENTOLAEBMA2E250-AM06-13 1
07622 BOCCAGLIOBOCC.250AL 1
02871 CALOTTEPERDB9cod.525-2620 2
02791 CONNETTOREDB9MxCAVO525-2600 2
V0762 TAPPINERIO15.9PLASTICADP-625 1
M0800 GUIDADINPROFILATAOMEGAZ002SEM 3
V0958 ACCESSORIOGUIDADINELECOE205 6
05597 POST.xRACK28UVERCON0099R0 1
CON0057 CON0057R1CHIUS.SUP.RACKPERAUTV 2kW 1
Z0500 TAV. 1081/EGUIDARACK3000WP.2328ZN 10
DET0462 DET0462R0BARRAxRACKSOSTEGNOPCAVZN 2
DET0434 DET0434R2ANCORAGGIOFLANG.7/8CONRACK 1
DET0391 DET0391R0BARRAFISS.ACC.INPAUDIO5kW 1
DET0538 DET0538R0PIASTRAANCOR.ACC.DIR.FIL. 2kW 1
DET0537 DET0537R0PIASTRAANCOR.ACC.DIR.FIL. 2kW 1
DET0536 DET0536R0ANGOLAREFISS.FILTRO2kWCOMT. 2
DET0535 DET0535R0BARRAFISS.FILTRO2kW COMT. 2
V0962 MORSETTIERA/GIUNZIONEELECOE806 3
09627 CASSETTOTRASF. SEPARAT.DIRETE8kVA 1
07627B SPINAPROT.B.T.32A2P+T 220VGW60015 1
07627C PRESAVOL.32A2PT220VGW62015 1
R0154 RACK28U565x1000 1
PAN0017 PAN0017R0PANNELLOAVANTIDIETRO 1
02571 CARICOBNC1/2W50Ω2
Component list APT088A - AUTV/2000LD

16
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17
AMPLIFIER CONTROL
O
MICR OPR O CESSO R CON TRO LLE D SYS TEM
RS232
PO W ER
CODE: APG012B TITLE: AMPLIFIER CONTROL REV: 0 DATE: 25/11/02

18
1.1FUNCTIONS
The control system is made up by some “Slave” boards, which check locally the amplifier modules,
and a “Master” board to monitor the status of the Slave boards in each module and show on a graphic
display all the checked parameters. The number ofthe Slaves changesdependingontheoutputpowerof
the amplifier. The communication between Master and Slaves is made via I2Cbus standard. The Master
board reads the overall parameters of the equipment (forward and reflected power and unbalancing),
polls (interrogates in sequence) the local boards, shows on the display the values requested by the user
and indicates alarm conditions, if any. Besides it realizes a serial data interface to an external system
able to analyse the working parameters of the equipment, using the RS232 and RS485 communication
protocols.
At start-up, the display of the Amplifier Control shows an informational message concerning the equip-
mentandthefirmwareversion.
Themainmenuhas:alistoftheamplifiermodules,themeasureofsomeparametersofthepowersinantenna,
awindowwithiconsto showthealarmstatusandsome general information,thatisdate,time, temperature
insidethemoduleand,forFMequipment,transmissionfrequency.
In the Amplifier List, next to each module, you can find the following symbols:
AMPLIFIER CONTROL
if the communication with the slave is correct and then
if the communication with the slave is interrupted
ON
ifthe amplifiermodule isOFF
OFF
ifthe amplifiermodule isON
O
MICR O PR O CES SOR CO N TROL LE D SYS TEM
RS232
POW ER

19
The UP and DOWN arrow keys allow to select one of the slave or the alarm list; the RET key is used to
confirmtheselection.
Byselectingone oftheslaves,it ispossibletoseealltheparameters ofthatamplifiermodule, thatisvoltages
and currents of the power supply, forward and reflected power, temperature and, for some amplifiers,
unbalancingpowers.TheUPand DOWN keysallowtoscrollthelocal measures ofalltheslaves.TheESC
keyisusedtogobacktothemainmenu.
ByselectingtheAlarm List,twopageslistingthe latest20alarmssavedare shown.Eachlineinthese pages
includestheprogressivenumberofthealarm,startingwiththemostrecent,thenumberofthemoduleinwhich
thealarmoccurred(theindication“AC”meansthatthealarmoccurredintheAmplifierControlmodule),the
parameterinalarm andthedateandtimeofthealarm.Thesaved alarmcanbedeletedbykeepingsimultane-
ously pressed the UP andDOWNkeys. The ESCkey is used to go back to the main menu.
Inthemain menuthereistheAlarmStatusWindow:
displaysthestatusof the INTERLOCK,incaseofalarm thisiconblinksandthe buzzer rings.
TheINTERLOCKsignalisa control availabletotheusertomanage an On/Offsensor.
WhentherelevantPINisgrounded,theMasterboarddoesnotsignal any alarm, as soon as the
PINisleftfloating, analarmisdetected;
showsthestatusofthe FANS: worksnormally;
incaseof alarmthisiconblinks andthebuzzerrings;
thisiconblinks incaseofALARM.
If one of the parametersofa Slaveoranyoftheonesdirectlycheckedbythe Masterisalarmed,the
generalalarmLEDand thealarmiconblinkuntil theAlarmListischecked toseethetypeof alarm
occurred.
Besides, if an alarm for any of the powers of the signals in antenna occurs, the relevant measure in the
AntennawindowofthedisplayandtherelevantLEDonthefrontpaneloftheMastermoduleblinkuntilthe
measuredecreasesbelow thethresholdlevel,determined bythenominalpoweroftheamplifier.
Ifthe slave modules are working and an INTERLOCKor FANS alarm occurs, aside from theindication
explainedabove,theamplifiersareswitchedoff.ThishappensimmediatelyafteranINTERLOCKalarm,or
about7 seconds after a FANS alarmis detected.

20
Incasetheamplifiersare communicatingbutswitchedoff,orthey are notcommunicatingandtheINTER-
LOCKalarmcontactis open, aWARNING condition occurs:buzzeronandblinking ALARMLEDonthe
frontpanel;whileifitisthe FANS alarm contact to beopen,theiconofthealarmappears in the box.
Furthertoanyofthese twoalarmsitispossibleto choose whethertoturnoffor not theamplifiers.Infact,if
the DIP-switch n. 2 (see mounting plan BOTTOM - SCH0109BR0) is set to OFF before turning on the
transmitter,theamplifierswillbeswitchedoff afteraFAN alarmoccurs,whileitwillbekept oniftheswitch
issettoON.TheDIP-switchn.3hasthesameeffect for what concerns the Interlock alarm.
1.2 PROGRAMMING MODE
To access the “Programming Mode”, press simultaneously the ESC andRET keys. The “Setting Time”
menuorthe “SettingFrequency”menucanbeselectedbyusingthearrowkeys,whilethe RETkeyconfirms
thechoice.Whilethis menuisopen,no alarmwillbesignalleduntilthereturntothe mainmenu.Ifno keyis
pressedforabout50 seconds,themainmenuis automaticallydisplayed.
TheSettingTimemenuallowstosetthefollowingfunctions:hour,minute,day,monthandyear.Theselected
parameterblinksandcanbemodified withthearrow keys;theRETkeyconfirmsthechanges,whiletheESC
keycancelsthem.
The“SettingFrequency”menuappearsonlyintheFMamplifiers. To visualize thepoweremittedbythe
antenna correctly, set the frequency nearest to the working frequency of the transmitter in the frequency
programming menu.The selectedparameterblinksandcanbe modifiedwiththearrowkeys;the RETkey
confirmsthechanges,while theESCkeycancelsthem.
1.3SETTING
Set the RS232-RS485 mode on the SCH0109BR0 Control board:
RS232MODE- DIP-switch n. 1 set to ON before turning on the transmitter: the RS232 mode allows a
directaccesstotheequipmentviaPC and a remote accessviamodemorswitchedtelephoneline.
RS485MODE-DIP-switchn.1settoOFFbeforeturning on the transmitter. ThevRS485 mode allowsa
remote access to the equipment via modem over switched telephone line or GSM network. It allows the
connectiontotheRemote ControlSystem,designedtomonitor severalapparatuseslocatedatthe samesite.
-FWDPowercalibration
Disconnecttheantennaand connectawattmetertothe antennaconnector.Givepowerto theamplifieruntil
youwillreadonthewattmeteravalue correspondingtotheequipmentnominalpower.Thenturnthetrimmer