RVR Solar BLUES30NV User manual

BLUES30NV
User Manual
Volume 1
Manufactured by Italy

BLUES30NV - User Manual
Version 1.0
© Copyright 2005
R.V.R. Elettronica SpA
Via del Fonditore 2/2c - 40138 - Bologna (Italia)
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Web: www.rvr.it
All rights reserved
Printed and bound in Italy. No part of this manual may be reproduced,
memorized or transmitted in any form or by any means, electronic or
mechanic, including photocopying, recording or by any information
storage and retrieval system, without written permission of the copyright
owner.
File name: BLUES30NV_ING.P65
Version: 1.0
Date: 22/05/2005
Revision History
Date Version Reason Editor
22/05/05 1.0 First Version J. Berti
Notification of intended purpose and limitations of product use
This product is a FM transmitter intended for FM audio broadcasting. It utilises
operating frequencies not harmonised in the intended countries of use.
The user must obtain a license before using the product in intended country of
use. Ensure respective country licensing requirements are complied with.
Limitations of use can apply in respect of operating freuency transmitter power
and/or channel spacing.
Declaration of Conformity
Hereby R.V.R. Elettronica SpA declares that this FM transmitter is in
compliance with the essential requirements and other relevant provisions of
Directive 1999/5/EC.

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iUser Manual Rev. 1.0 - 22/05/05
Table of Contents
1. Preliminary Instructions 1
2. Warranty 1
3. First Aid 1
3.1 Treatment of electrical shocks 1
3.2 Treatment of electrical Burns 2
4. Removal from the packing 3
4.1 General Description 3
5. Quick guide for installation and use 5
5.1 Preparation 5
5.2 Use 5
5.3 Settings and calibration 7
5.4 Software 7
5.5 Optional Functions 14
6 External Description 17
6.1 Front Panel 17
6.2 Rear Panel 18
6.3 Connectors description 19
7. Technical Specifications 20
7.1 Mechanical characteristics 20
7.2 Electrical characteristics 20
7.3 Spare Parts 22
8. Working Principles 24
8.1 Power Supply 24
8.2 Panel board - CPU 24
8.3 Main Board 25
8.4 Power amplifier 26
8.5 Control board 26
9. Identification of the Modules 27
9.1 Upper View 27

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1. Preliminary Instructions
This manual is written as a general guide for those having previous
knowledge and experience with this kind of equipment, well conscious
of the risks connected with the operation of electrical equipment.
It is not intended to contain a complete statement of all
safety rules which should be observed by personnel in
using this or other electronic equipment.
The installation, use and maintenance of this piece of
equipment involve risks both for the personnel performing
them and for the device itself, that shall be used only by
trained personnel.
R.V.R. Elettronica SpA doesn’t assume responsibility for
injury or damage resulting from improper procedures or
practices by untrained/unqualified personnel in the handling
of this unit.
Please observe all local codes and fire protection standards
in the operations of this unit.
WARNING: always disconnect power before
opening covers or removing any part of this unit.
Please observe all local codes and fire protection standards
in the operations of this unit.
WARNING: this device can irradiate radio
frequency waves, and if it’s not installed following
the instructions contained in the manual and local
regulations it could generate interferences in radio
communications.
This is a "CLASS A" equipment. In a residential place this
equipment can cause hash. In this case can be requested
to user to take the necessary measures.
R.V.R. Elettronica SpA reserves the right to modify the
design and/or the technical specifications of the product
and this manual without notice.
2. Warranty
Any product of R.V.R. Elettronica is covered by a 24
(twenty-four) month warranty.
For components like tubes for power amplifiers, the
original manufacturer’s warranty applies.
R.V.R. Elettronica SpA extends to the original end-user
purchaser all manufacturers warranties which are
transferrable and all claims are to be made directly to
R.V.R. per indicated procedures.
Warranty shall not include:
1 Re-shipment of the unit to R.V.R. for repair
purposes;
2 Any unauthorized repair/modification;
3 Incidental/consequential damages as a result
of any defect;
4 Nominal non-incidental defects;
5 Re-shipment costs or insurance of the unit or
replacement units/parts.
Any damage to the goods must be reported to the carrier in
writing on the shipment receipt.
Any discrepancy or damage discovered subsequent to
delivery, shall be reported to R.V.R. Elettronica within 5
(five) days from delivery date.
To claim your rights under this warranty, you shold follow
this procedure:
1 Contact the dealer or distributor where you
purchased the unit. Describe the problem and,
so that a possible easy solution can be
detected.
Dealers and Distributors are supplied with all the information
about problems that may occur and usually they can repair
the unit quicker than what the manufacturer could do. Very
often installing errors are discovered by dealers.
2 If your dealer cannot help you, contact R.V.R.
Elettronica and explain the problem. If it is
decided to return the unit to the factory,
R.V.R. Elettronica will mail you a regular
authorization with all the necessary
instructions to send back the goods;
3 When you receive the authorization, you can
return the unit. Pack it carefully for the
shipment, preferably using the original packing
and seal the package perfectly. The customer
always assumes the risks of loss (i.e., R.V.R.
is never responsible for damage or loss), until
the package reaches R.V.R. premises. For
this reason, we suggest you to insure the
goods for the whole value. Shipment must be
effected C.I.F. (PREPAID) to the address
specified by R.V.R.’s service manager on the
authorization
DO NOT RETURN UNITS WITHOUT OUR
AUTHORIZATIONAS THEY WILL BE REFUSED
4 Be sure to enclose a written technical report
where mention all the problems found and a
copy of your original invoice establishing the
starting date of the warranty.
Replacement and warranty parts may be ordered from the
following address. Be sure to include the equipment model
and serial number as well as part description and part
number.
R.V.R. Elettronica SpA
Via del Fonditore, 2/2c
40138 BOLOGNA
ITALY
Tel. [phone]
3. First Aid
The personnel employed in the installation, use and
maintenance of the device, shall be familiar with theory
and practice of first aid.
3.1 Treatment of electrical shocks
3.1.1 If the victim is not responsive
Follow the A-B-C's of basic life support.
• Place victim flat on his backon a hard surface.
• Open airway: lift up neck, push forehead back
(Figure 1).
Figure 1

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• clear out mouth if necessary and observe for
breathing
• if not breathing, begin artificial breathing
(Figura 2): tilt head, pinch nostrils, make
airtight seal, four quick full breaths. Remember
mouth to mouth resuscitation must be
commenced as soon as possible.
Figura 2
• Check carotid pulse (Figura 3); if pulse is
absent, begin artificial circulation (Figura 4)
depressing sternum (Figura 5).
Figure 3 Figure 4
Figure 5
• In case of only one rescuer, 15 compressions
alternated to two breaths.
• If there are two rescuers, the rythm shall be
of one brath each 5 compressions.
• Do not interrupt the rythm of compressions
when the second person is giving breath.
• Call for medical assistance as soon as
possible.
3.1.2 If victim is responsive
•Keep them warm.
•Keep them as quiet as possible.
•Loosen their clothing (a reclining position is
recommended).
•Call for medical help as soon as possible.
3.2 Treatment of electrical Burns
3.2.1 Extensive burned and broken skin
•Cover area with clean sheet or cloth.
•Do not break blisters, remove tissue, 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 affected keep them
elevated.
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.
3.2.2 Less severe burns
•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 quickly
as possible.
•If arms or legs are affected keep them
elevated.

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4. Removal from the packing
The package contains:
!Nr.1 BLUES30NV
!Nr.1 User Manual
!Nr.1 Mains power cables
The following accessories are also available from Your R.V.R. Dealer:
•Accessories, spare parts and cables (for more information see chap. 7.3).
4.1 General Description
The BLUES30NV is an exciter for Frequency Modulated audio broadcasting in
a frequency modulation able to transmit in the band between 87.5 and 108 MHz, in
step of 10 KHz, with an RF output power adjustable up to a maximum of 30 W into a
50 Ohm standard load.
The BLUES30NV is designed to being contained into a 19” rack box of 1HE.
This exciter contains a low-pass filter that reduces the harmonic emissions to below
the limits allowed by international regulations (CCIR, FCC or ETSI), and can therefore
be used as a transmitter connected directly to the antenna.
Important features of the BLUES30NV are the extremely compactness, the great
simplicity of construction and use, and the presence of built-in high-performance
coder stereo. The BLUES30NV futhermore was designed to be modular: its various
functions are carried out from modules directly connected to each other with male
and female connectors or with flat cables ending in connectors. This type of design
makes maintenance operations and any required module replacement easier.
The RF power section uses one MOSFET module able to deliver 30 W.
The working frequency is assured by a thermally-compensated, reference oscillator
working within a phase-locked loop (PLL). The BLUES30NV reaches frequency
lock within a maximum of 30 seconds.
The BLUES30NV is able to work in all range frequency without calibration and setting
operations.
The microprocessor system includes an LCD display and push-button panel for
interaction with the user, and implements the following functions:
•Setting of output power
•Setting of working frequency
•Setting of Mono or Stereo operation

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•Setting of preemphasis
•Setting of impedance on Left&Right and MPX channels.
•Activation and deactivation of power delivery
•Activation and deactivation of clipper operation
•Measurement and display of the working parameters of the exciter
•Communications with external devices
Four LEDs indicate the machine status and are found on the front panel: ON, LOCK,
FOLDBACK and RF OFF.
The exciter's management software is based on a menu system. The user can
navigate between the various submenus by using the knob (encoder) placed on front
panel.
On rear panel there are Mains connector, audio input and RF output connectors,
telemetry connector, protection fuse, two inputs for modulated signals on subcarriers
from special external encoders normally used in Europe for RDS (Radio Data
Systems) transmission.

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5. Quick guide for installation and use
This chapter contains the necessary information for installing and using the machine.
In the event any aspects are not completely clear, for example when using the machine
for the first time, we recommend you carefully read the entire description contained
in this manual.
5.1 Preparation
Unpack the exciter and before doing any other operation, be sure it has not been
damaged during transport. In particular check that all the connectors are in perfect
condition.
The main fuse can be accessed from the outside on the rear panel (see figures 6.2 -
[1]). Extract the fuse carrier with a screwdriver to check its integrity or for replacement,
if necessary. The fuse to be used is this type:
Mains Fuse: 3.15 A 5x20
Check that the BLUES30NV mains switche is in the "OFF" position, it is placed on
the front panel and inhibits the switching power supply of the machine.
Connect the RF output of the exciter to the antenna cable or to a dummy load able to
dissipate the power generated by the BLUES30NV.
WARNING: in case the load is not present, don’t touch the RF output connector during
the equipment operation to avoid electric shock and electrocution.
Connect the mains cable to the proper standard IEC plug, placed on the rear panel
(see fig. 6.2 - [2]).
WARNING: It is necessary that the mains system being provided with grounding to
ensure both the operators' safety and correct operation of the equipment.
Connect the audio cable and RDS/SCA of the signal source to the proper input
connectors of the BLUES30NV with the indications of the figure 6.2.
5.2 Use
Switch on the exciter by putting the switch, found on the front panel, in the "I" position
(on).
Enter the Set menu and set the desired operating frequency and the characteristics
(impedance, preemphasis, in case stereo/mono). See chapter 5.4 for a complete
description of the various menus.
Through the trimmers placed on rear panel set the the audio and RDS inputs levels
(if used).

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NOTE: by factory, it is delivery with the output power adjustment at minimum and in
the “OFF” position. It is however recommended that you always check the set level
before activating power supply, especially if the machine is used as a modulator for
a power amplifier.
Set the desired power level from the predefined menu, as described in chapter 5.4.
Activate the RF power output from the Fnc menu (chap. 5.4.1).
5.2.1 Encoder
The interaction between the user and the exciter control software is performed using
the encoder.
The operations that you can perform on the encoder are:
•rotation: moves the cursor shown on the display; if you turn the encoder to the left
(counterclockwise), the cursor moves downwards, if you turn it right the cursor
moves upwards; it also permits to increase or diminish the parameters (turning
the encoder left diminishes the paramete
•pushing: push the button once when the cursor is on the name of a menu to enter
in that menu, push it when the corsor is on the name of a parameter to enter in
modification mode (the cursor starts blinking); after the modification of a
parameter, push the button to save the new value.
After having modified the value of a parameter, the cursor goes on blinking for
approximately 15 seconds, waiting for confirmation from the user. If the user doesn’t
confirm the new value (i.e., the button is not pressed), the parameter has not saved
and remains on the selected parameter.
The first pressure of the ENCODER when the display is light out, or its rotation,
serves in order to activate the retroillumination.
Turn the encoder counterclockwise
to move the cursor downwards, to
decrease the value of a parameter
or to choose an element from a list
of possibilities
Turn the encoder clockwise to move
the cursor upwards, to increase the
value of a parameter or to choose
an element from a list of
possibilities
Push the button once to enter in the desired
menu, twice to modify the selected paramenter.

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5.3 Settings and calibration
The only adjustments to have made manually on the BLUES30NV are those relating
to the audio operation levels and modes.
A trimmer for each one of the exciter's inputs is on the rear panel of the device. The
serigraphy on the panel indicates which input each trimmer refers to. The sensitivity
of the various inputs can be adjusted using the trimmers within the limits described in
the following tables:
•Input sensitivity:
Input Figure 6.2 Trimmer Sensitivity Note
SCA1 [12] [13] - 8 ÷ +13 dBm
SCA2 [10] [11] - 8 ÷ +13 dBm
Input level for 7,5 kHz overall deviation (-
20 dB)
MPX [14] [15] -13 ÷ +13 dBm
Left/
Mono [18] [16] -13 ÷ +13 dBm
Right [19] [18] -13 ÷ +13 dBm
Input level for 75 kHz overall deviation (0
dB)
To adjusting the sensitivity level of the inputs, keep in mind that the instantaneous
modulation level is given in the predefined menu and that an hatched bar signals the
75 kHz level. To get a proper adjustment, we recommend you put a level signal on the
machine's output equivalent to the level of its own audio program and adjust the
relative trimmer until the instantaneous deviation coincides with the indication of 75
kHz.
To adjust the levels of the inputs of the subcarriers, you can use a similar procedure
while getting help from the “X10” option that can be selected from the Fnc menu.
With this option, the modulation level indicated is multiplied by a factor 10 so the
drawn indication of the predefined menu coincides with a deviation value of 7.5 kHz.
A special menu is present in which the Right and Left channel levels are indicated
separately with the relative indicators of the nominal levels for the maximum deviation
of 75 kHz.
The regulations of preemphasis, of impedance on L&R and MPX inputs, and of
equipment operation modality are operations feasible through the menù Set. For
more information is advised to consult the chapter 5.4.4.
5.4 Software
The machine is provided with a two-line LCD display where a set of menus is shown.
An overall view of the machine's menus is given in figure 5-1.
One of the following symbols may be present on the left side of the display, depending
on the case:

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(Cursor) - The cursor indentifies the selected menu where you can have access.
(Full arrow) - The parameter highlighted by the arrow can be modified. Questo
simbolo è presente nei menù composti da più di due righe come aiuto nello
scorrimento del menù.
(Three empty arrows) - The parameter highlighted by the arrows is in phase of
modification.
(Empty Arrow) - The arrow points out the current line, the parameter of which
cannot be modified. This symbol is present in the menus made up of more than
two lines to help scroll the menu.
When turned on, the LCD display shows the predefined screen with the graphic
representation of the instantaneous modulation level and indication of the direct power
supplied:
Menu 1
The vertical bars under "Mod" indicate the progress of the modulation in real time;
the hatched bar signals the maximum nominal modulation level at 75 kHz (100%).
To change the set power level, keep the ENCODER pressed for about 5 seconds
until it enters the modification mode.
The screen that is shown in the modification mode is similar to the following:
Menu 2
The bottom line gives the instantaneous reading of the power (30W in this example),
whereas the bar indicates the set level, to increase the level rotate towards right, to
reduce it rotate towards left. When the desired level is reached, press the ENCODER
to confirm and exit to the predefined menu. Note that the set value is stored anyway,
so if you pass the time-out without pressing a key, the power will remain at the last set
level.
The first pressure of the ENCODER when the display is light out, or its rotation,
serves in order to activate the retroillumination.
The pressure of ENCODER when the display is switched on, while you are in the
predefined menu, serves in order to shown the following selection screen from
which you can access to all the other menus:

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Menu 3
If you instead want to go back to the predefined menu, is sufficient select the ESC
entry then push the ENCODER.
To enter into one of the submenus, select its entry (which will be underlined by a
blinking cursor) with the rotation and then press the ENCODER.
Figure 5.1 shows the complete set of the equipment menus.
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If the temperature alarm is enabled, the power supply will come inhibited in case of
alarm threshold overcoming, and it will have displayed the following window only in
case you are in the predefined screen:
Status 1
Once restored the normal operation conditions, the power supply will come
rehabilitated with the same modalities antecedent the alarm.
If the modulation ran out, under 20 kHz, for a time of about 5 minutes (not modifiable)
the NO AUDIO status comes displayed in the predefined screen, but the power
does not comes inhibited:
Status 2
5.4.1 Operation Menu (Fnc)
From this menu the user can enable or disable the exciter power supply, set the
deviation display modality and set up the percentage of Forward (PgD) or Reflected
Power Good (PgR).
Menu 4
Pwr Enables (On) or disables (Off) the power supply of the exciter.
Mod Display modality of the modulation selectable between x1 and x10. The
indication of the instantaneous deviation is multiplied by a factor 10 in the
x10 mode, so the hatched indicator on the predefined menu will coincide
with the 7.5 kHz value instead of 75 kHz. This display mode is useful

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when you want to view low deviation levels such as, for example, those
due to the pilot tone or to the subcarriers.
PgD Regulation of the Power Good threshold relative to the forward power.
The percentage value of Power Good is referred to the nominal power of
the machine, that is 30 W, not to the supplied forward power. If a value
equal to 50% is setted, it will correspond indifferently to 15 W from the set
up power. The Power Good function is a control and alarm function on the
supplied power. When the output power fall under the threshold value of
Power Good set, the machine modifies the pin state [7] of "Remote" DB15
connector on the rear panel (figure 6.2 note-[8]).
PgR Regulation of the Power Good threshold relative to the forward power.
The percentage value of Power Good is referred to the nominal power of
the machine, that is 10W, not to the supplied forward power.If a value
equal to 5% is set, it will correspond to 500 mW indifferently from the set
up power.
NOTE: This alarm does not have effect on any output signal on the DB15
“Remote” connector, placed on the rear panel of the equipment, and it
works only in presence of systems equipped of telemetry.
Exit The entry allows to the user the prompt exit from current submenu and
goes back to the predefined menu.
5.4.2 Power Menu (Pwr)
This screen shows the user the measures relating to the exciter RF power output.
The values shown are readings, and therefore cannot be modified (note the empty
arrow). To modify the power setting, use the predefined menu, as described above.
Menu 5
Fwd Visualization of the Forward Power (Fwd).
Rfl Visualization of the Reflected Power (Rfl).
Exit The entry allows to the user the prompt exit from current submenu and
goes back to the predefined menu.

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5.4.3 Power Amplifier Menu (P.A)
This screen, consisting of four lines that can be scrolled with the rotation of the
ENCODER, shows to the user the measures relating to the final power amplifier of
the equipment:
Menu 6
VPA Visualization of the amplifier module voltages.
IPA Visualization of the amplifier module current.
Eff Visualization of the efficiency as ratio between the forward and reflected
power of the amplifier module, expressed in percentage ( FWD Pwr/(Vpa
x Ipa) % ).
Tmp Visualization of the inner temperature of the machine.
Exit The entry allows to the user the prompt exit from current submenu and
goes back to the predefined menu.
5.4.4 Settings Menu (Set)
This menu lets to read the working power to read and set the working frequency, the
preemphasis, the MPX and L&R channel impedance, the audio and clipper modality.
Meni 7

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F1 Regulation of set up frequency. After having set a new frequency value,
press the ENCODER to confirm the choice. The exciter will release from
the current frequency (the LOCK LED turns off) and it will latch onto the
new operating frequency (LOCK turns back on). Instead, if you press ESC
or let the timeout go by, the frequency will remain set at the previous value.
Pwr Visualization of the set up power. In order to modify the power regulation,
use the predefined menu like previously described or the Set menu.
Pre Regulation of the preemphasis, selectable between 0 μs, 50 μs and 75
μs.
Imp Regulation of the Left and Right channel input impedance, selectable
between 10 kΩor 600 Ω.
Imp Regulation of the MPX channel input impedance, selectable between 10
kΩor 50 Ω.
Aud Regulation of audio modality selectable between STEREO and MONO.
Cli Enable or disable the clipper operation.
Exit The entry allows to the user the prompt exit from current submenu and
goes back to the predefined menu.
5.4.5 Miscellaneous Menu (Mix)
This menu allows you to set the machine's address in a serial bus connection (I2C
type).
The exciter normally does not come supplied with FSK option inserted. For this reason
the parameters to it connect are not modifiable and come represent to by means
===. In case the option FSK were present in the supplied version, carefully read how
much brought back in chapter 5.5.1.
Menu 8
IIC Regulation of the I2C address. The I2C network address is important when
the exciter is connected to a company’s transmission system that
envisages use of this protocol. We recommend you do not modify it without
a good reason.
Exit The entry allows to the user the prompt exit from current submenu and
goes back to the predefined menu.

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5.4.6 Versions Menu (Vrs)
This screen shows the version and the release date of the software.
Menu 9
Rel Visualization of the software release.
Dat Visualization of the date release.
Tab Visualization of the release of the configurations table loaded in memory
Exit The entry allows to the user the prompt exit from current submenu and
goes back to the predefined menu.
5.4.7 Channels Menu (L&R)
The right and left channel input levels are depicted with horizontal bars, as shown in
the following figure. The hatched pointer indicates the level that corresponds with the
total deviation at 100%, and is useful to regulate the input levels of the audio channels.
Menu 10
LVisualization of the Left channel Vmeter.
RVisualization of the Right channel Vmeter.
Exit The entry allows to the user the prompt exit from current submenu and
goes back to the predefined menu.
5.5 Optional Functions
Optional functions can be added and/or modified for the equipment described in this
manual. The available functions are carried in the continuation and can be requested
to R.V.R. Elettronica at the moment of the order.

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5.5.1 FSK Option
The FSK function, generates periodic shifts of the transmission carrier frequency,
realizes in way to generate a Morse code that carried the Radio Identification Code.
This function is tipically used in the United States.
By factory the amplitude of the frequency shifts is +10 KHz and the time lag of the
code repeat is 60 minutes (for values different from these parameters, please contact
R.V.R. Elettronica SpA).As regards the Radio code, it can be set by the user following
the indications described in chapter 5.5.1.1.
Some entry of Mix menu,active with inserted option,allows to enable or disable
transmission of the code, and to visualize the transmitted code.
Menu 11
The pressure of ENCODER, on Mix entry in the selection screen, serves in order
to access to all the relative submenu:
Menu12
IIC Regulation of the I2C address. The I2C network address is important when
the exciter is connected to a company’s transmission system that
envisages use of this protocol. We recommend you do not modify it without
a good reason.
FSK Enable or disable the transmission of the FSK code.
Cod Visualization of the code normally transmitted.
Exit The entry allows to the user the prompt exit from current submenu and
goes back to the predefined menu.
5.5.1.1 Code Modification
In every moment the user is able to make changes to the Radio code transmitted in
FSK.

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In order to make the operation is necessaryto have:
•1 RS232 male - female cable;
•Hyper Terminal Interface (verify that it has been installed together to the own copy
of Windows®) or equivalent serial communication sofware.
The procedure to execute comes shortly described in the following:
•Connect a standard serial cable (DB9 Male - DB9 Female) the COM serial port
place on PC to SERVICE connectorplaced on the rear panel of the TEX30-LCD.
•Turn on the exciter;
•Start up the serial communication software;
•Set up the following parameters for the communication:
Baud Rate: 19200
Data Bit: 8
Parity: None
Stop Bit: 1
Flow control: None;
•Through the communication software activate the Caps-Lock key (capital), send
the CODE string followed from the 6 characters of the station code and then
confirm pressing Enter.
The code is considered only if is complete of 6 characters (alphanumeric and without
spaces). In case the code is accepted, it comes repeated in echo towards the
program, in contrary case the echo of the code does not come made.
5.5.2 UP/DOWN Power Option
The UP/DOWN Power modifies the function to receive signals present on the telemetry
connector (see chap. 6.3.2).
In this particular situation the control signals uses to enable or to disable the RF
section, become control signals of the RF power level, allowing one regulation of UP/
DOWN type.
The UP or DOWN command is supplied connecting the relative signal on the Remote
connector to the ground, at least for 500mS (the pin has an inner pull-up towards
feeding).
This function is tipically used in the United States.
Configuration of the telemetry DB15F connector (Remote):
Pin Standard Function UP/DOWN Power Function
14 On cmd Up cmd
Enables RF power supply Increases RFthe Power supply
15 Off cmd Down cmd
Disables RF power supply Reduces RFthe Power supply
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