R.V.R. Elettronica BLUES 30 User manual

BLUES 30
User Manual
Volume 1
Manufactures by Italy

BLUES 30 - User Manual
Version 1.3
© Copyright 2003
R.V.R. Elettronica SpA
Via del Fonditore 2/2c - 40138 - Bologna (Italia)
Telefono: [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, eletronic or
mechanic, including photocopying, recording or by any information
storage and retrieval system, without the permission of the copyright
owner.
File name: capitoli_EN.P65
Version: 1.3
Date: 16/10/2003
Revision History
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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. 1.3 - 16/10/03
Table of Contents
1. Preliminary Instructions 1
2. Warranty 3
3. First Aid 5
3.1 Treatment of electrical shocks 5
3.2 Treatment of electrical burns 6
4. General Description 7
5. Quick guide for installation and use 9
5.1 Preparation 9
5.2 Operation 10
5.3 Encoder 10
6. Software 13
6.1 Menu 13
7. Panels Description 21
7.1 Front Panel 21
7.2 Rear Panel 22
7.3 Connectors Description 23
8. Technical specifications 25
8.1 Physical specifications 25
8.2 Electrical specifications 25
9. Modules Identifications 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.
Use appropriate grounding procedures to short out capacitors and high voltage points
before servicing.
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.

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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 danni verificatisi durante la spedizione della macchina alla R.V.R. per eventuali
riparazioni;
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 AUTHORIZATION AS THEY WILL BE
REFUSED

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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]

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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 (Fig. 3-1).
 clear out mouth if necessary and observe for breathing
 if not breathing, begin artificial breathing (Figure 3-2): tilt head, pinch nostrils,
make airtight seal, four quick full breaths. Remember mouth to mouth resuscitation
must be commenced as soon as possible
Figure 3-1 Figure 3-2
 Check carotid pulse (Fig 3-3); if pulse is absent, begin artificial circulation
(Fig. 3-4) depressing sternum (Fig. 3-5)
Figure 3-3 Figure 3-4 Figure 3-5
 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.

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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. General Description
The Blues30 is an exciter for audio broadcasting in frequency modulation capable
to transmitting from 87.5 to 108 MHz band with a RF output power adjustable up until
to 30 W max.
This exciter contains a low-pass filter that reduces the harmonic emissions to below
the limits allowed by international regulations (CCIR or FCC), and can therefore be
used as a transmitter connected directly to the antenna.
The most important feature of this equipment is that it is extremely compact (only
1HE high); another importat feature is the constructive and usable simplicity.
The Blues30 has a modular design: the various functions are performed by modules
connected directly to male and female connectors or to flat cables that are fitted with
connectors at the ends. This type of design facilitates maintenance and module-
replacement operations.
The machine has got a built-in coder and therefore it is been setup for LEFT and
RIGHT inputs or it can be configured to operate in Mono/MPX mode i.e. by disabling
the stereo coder and using the "left" inputs as the "mono" input and a BNC connector
as composite broad band input (MPX), useful when transmitting in stereophony using
an external stereo coder.

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5. Installation and operation
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 exciter is fitted with a switch located on the machine's back panel that totally cuts
out the machine's mains power supply. Check that the main switch of the BLUES30
is 0.
The exciter is setup for a 230V mains power supply unless otherwise agreed upon
with the customer at order placement.
In order to change the mains voltage setting, open the upper cover of the exciter and
use a small screwdriver to adjust the selector located on the upper side of the power
supply unit (as shown in the figure).
The value of the current operating voltage is shown on the selector.

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Warning: The machine must be disconnected from the mains power supply when
this operation is performed.
Connect the RF output of the exciter to the antenna cable or to a dummy load capable
of dissipating the power generated by BLUES30.
Turn trimmer "Pwr Adj." counterclockwise to minimize the emitted power.
Plug the mains cable into the specific VDE base.
Note: The mains system must be grounded to assure operator safety and proper
working efficiency of the equipment.
Connect the audio cables of your signal source to the respective connectors at the
back of the exciter. The machine can run either in Stereo (Left and Right inputs),
Mono or MPX mode (compound input). See chapter 7 for the description of the
connectors.
5.2 Operation
Energize the exciter by putting the switch placed on the rear panel in the I position
(on).
The following parameters should be set before deliver power:
Operating frequency
Input impedance
Pre-emphasis
Audio level
Operating mode (Stereo, mono or MPX)
A few seconds after power-up, the exciter's PLL locks the operating frequency and
this activates the exciter power distribution. The machine's routine operating status
is indicated by the lighting up of the PLL LOCK LED.
Turn trimmer "Pwr Adj" clockwise to increase delivered power up until the required
level. Blues30 does not need to be supervised while working. However the user may
monitor the main parameters and make changes to the configuration via the machine's
control software.
5.3 Encoder
The control system of the Blues30 is made up of a LCD and a knob (the encoder) by
means of which to set and check all configurations.
The interaction between the user and exciters control software is performed using
the encoder as you can see in next figure:

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Turn the encoder counterclockwise
to move the cursor left, to decrease
the value of a parameter or to
choose an element from a list of
possibilities.
Turn the encoder counterclockwise
to move the cursor right, to
decrease 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, to enter in modification mode or to confirm
a choise.
The following operations may be performed on the encoder:
rotation: to scroll through the menus or change the selected values.
pressing: to select the parameter to be changed and accept the new set value.

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6. Software
The machine is fitted with a 2-line LCD that displays a set of menus. Some menus
have written "Push to Program": in this case press the encoder to change the
parameter.
Next chapter describes, in sequence, all the menus.
6.1 Menu
6.1.1 Default menu
The default menu, which appears on turning on the machine, shows the exciter's
most important parameters, namely:
 Set frequency
 Forward power in Watts (FWD)
 Reflected power in Watts (REF)
All menus are accessed from this menu by turning the encoder clockwise or
counterclockwise. For simplicity's sake we have described the sequence of menus
with the knob turned clockwise.
6.1.2 Frequency setting
The frequency selection can be set up from a minimum of 87.50MHz to 108MHz in
step of 10kHz.
Through this menu, pressing encoder button, you can approach to frequency work
setting:

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On accessing this screenful, the cursor blinks on the MHz frequency value: turn the
knob for selecting the required frequency from 87 to 108 MHz and then press the
encoder to confirm.
Now the cursor blinks on the order of kHz: repeat the same operation previously
described to execute fine frequency selection .
On completing settings, the cursor blinks on the arrow. Press arrow to access the
menu for confirming or not new frequency:
Select "Yes" to confirm, the "LOCK" LED on the front panel will go off for a few
seconds until the VCO does not lock the new set up frequency.
6.1.3 Channels menu
The instantaneous levels of the inputs of the right and left channels are shown by
means of horizontal bars as shown in the figure.
The empty rectangle indicates level that it corresponds to the total variation of 100%
reported to every channel.
6.1.4 Unclipped Menu
This menu shows, through an horizontal bar, the modulation level with limiter of
modulating signal disable.
The empty rectangle in the bar corresponds to the 75 kHz deviation level.

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6.1.5 Clipped Menu
This menu shows, through an horizontal bar, the modulation level with limiter of
modulating signal enable.
The empty rectangle in the bar corresponds to the 75 kHz deviation level.
6.1.6 Clipper Action Menu
This screenful shows, through an horizontal bar, limited modulation levels of the
Blues30. When the audio source has been well adapted to the input level of the
exciter (or vice versa), the bar should be empty.
6.1.7 Impedance Menu
The menu shows the value currently set for input impedance of the XLR audio
connectors.
Press the encoder to access the screenful for setting the impedance:
Turn the encoder and choose between 600Ωinputs or high-impedance inputs (greater
than 10 kΩ). On having accepted (or denied) the selection, you will come back to
previous menu.

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6.1.8 Sensitivity Menu
Through this menu you enter in the section to modify the input level sensitivity (report
to right R and left L inputs placed on rear panel). You can change its value from -6
to +6 dBm with 3dBm step. Fine regulation of level is made through trimmer placed
on rear panel (figure 7.2 note [12] and [13]).
Turn the encoder in this screenful until the cursor reaches the required interval and
then press the encoder to make the selection. On having accepted (or denied) the
selection, you will come back to previous menu.
6.1.9 Pre-emphasis Menu
This screenful shows the currently entered pre-emphasis value. Press the encoder to
go to the screenful for changing setting choising between no pre-emphasis (lin), 50
or 75µs:
Turn the encoder to select the required option and press the encoder to confirm the
selection. On having accepted (or denied) selection, you will come back to previous
menu.
6.1.10 Mode Menu