∞∞

∞∞ WWHHOO AARREE WWEE??

Radio Activity S.r.l. is a young and dynamic electronic engineering company

with its operational headquarters in Milan.

The company carries out design and production of wired and wireless equipment

and systems for telecommunications networks in the professional market.

The engineering team to whom the Research and Development is entrusted is

composed of engineers who have completed more than 20 years of experience in

this field at major telecommunications companies.

The deep expertise in the design and implementation of radio frequency

hardware and complete mastery of techniques for programming DSP devices

(Digital Signal Processing), allow us to tackle complex projects and offer

customized solutions to the real needs of the Customer.

The solutions identified are the result of intense work by top-level professionals

with multidisciplinary skills, which skillfufly integrate products and technology.

Radio Activity has advanced techniques, for the establishment of analogical and

digital simulcast radio networks and numerous products for data transmission

and centralization of communications via digital audio matrices based on DSP.

In order to maintain the structure lean and focused on its core business, all

production activities are entrusted to factories specializing in the assembly of

electronic circuit boards and mechanical assembly.

Only strategic assets are maintained inside with high quality levels. Besides of

course hardware and software design, we control the choice of valuable

components and final testing of equipment and network. This will guarantee the

continuous updating of the used components and total quality control of external

processes.

All equipment to be delivered undergo a period of active "burn in" to clear the

phenomenon of early defects.

For an optimal service to the customer, the installation and technical support of

first level, are usually entrusted to local factories, which can quickly respond to

requests for intervention.

The supervision and technical assistance of second level is carried out by Radio

Activity, through remote control to drive the local staff through the

rehabilitation or any changes and SW updates.

∞∞ PPRROODDUUCCTTSS

���� Professional Radio Networks (P.M.R)

Synchronous or simulcast analogical radio networks.

The simulcast radio networks represent the best solution to the communication

needs in areas of large or complex relief.

They are the most sophisticated analogue systems that allow the creation of vast

areas of coverage, open to the most common radio terminals and at low cost.

Radio Activity has products that can cover a wide range of applications in the

VHF band (also 70 MHz) and UHF, largely configurable for star, tree or line

networks, with links between the stations via wire (multiplex), via radio (UHF

link), via fiber optic, or via “over the mains” communication in mixed mode.

Synchronous or simulcast Digital radio networks (DMR).

The new digital modulation techniques, applied to the private radio market, will

allow a new achievement in the development of complex mobile networks.

In opposition to the "TETRA" technology, which expresses its full

implementation in geographically limited areas with a high number of users, the

DMR system allows coverage of geographically expanded areas by doubling the

number of simultaneous conversations per channel and allowing a "native"

digital data broadcasting.

Radio Activity has created a "stand alone" repeater which can automatically

manage the analogical and digital communications.

Radio Activity is ongoing testing and certification of the new modular

equipments for the establishment of simulcast DMR networks, with FDMA and

TDMA technology, both VHF (also 70 MHz) and UHF, largely configurable for

star networks with links between the stations via wire (multiplex), via radio

(UHF link) and via LAN (Ethernet).

All the networks made by our company are equipped with a powerful remote

control SW that enables full remote management of all the parameters of the

system and of the single station and carrying out procedures for self-test and

self-calibration of radio modules.

All modules forming a station can be replaced without any instrumentation as

totally self adaptive and able to assume every set of calibrations of the old

replaced module.

���� Point-to-point audio/data Solutions

Radio Activity, in addition to mobile radio networks, offers a lot of solutions for

point-to-point or point-to-multipoint connection for audio or data narrowband

applications (remote telephone, data acquisition units, ...).

Radio stations RA-xxx are equipped with Digital Signal Processors (DSP) that

allow some functions normally not achievable with traditional analogical

equipment. In particular, the link made with these radio stations, although in

12.5 KHz channel bandwidth, guarantees a band of 300-3400 Hz with excellent

group delay, distortion and S/N ratio.

The link made by a pair of devices RA-450 allows connections at low cost, with

a high degree of service (99.99%) even where there is no direct vision.

Remote Telephony.

Using radio stations RA-xxx, you can obtain an extension of telephone lines in

remote locations over 100 km distant, even if not in direct sight.

The particular developed SW ensure an excellent audio performance to phone

inserting correction systems like the echo eraser.

Numerous hardware and software configurations allow the creation of systems

to fit all situations.

Low-speed data transmission.

Radio stations RA-xxx can be programmed to operate in data point-to-point or

point-to-multipoint mode using an integrated modem with GMSK modulation.

The modem can be managed by criteria or be fully transparent as required, the

transfer rate is certified for 4800 or 9600 bps with 12.5 KHz of channel

bandwidth.

The data transmission can coexist with a telephony service.

High-speed data transmission.

Radio stations RA-xxx, can be equipped with new external modem made by us;

the modem with IP model RA-MD1, allowing you to connect together two LAN

networks by using a 4-wire audio (leased line) connection with net speed up to

19.2 Kbps with 12.5 KHz channel bandwidth.

Thanks to the LINUX "core" with a DSP coprocessor, the modem provides

excellent performance even over noisy and distorted channels.

The modem is approved for use in “over the mains” communication network at

speeds up to 33.6 Kbps.

This solution is especially suited to management and supplying electricity

companies. With integrated ethernet interface, enables to minimize the number

of units to be installed and allowing to simplifying operations of system

activation and maintenance.

� Audio Management Systems

Radio Activity has developed a Digital Audio Matrix that can manage up to 60

lines 2/4W + E&M for line/radio or telephone/radio connections.

The device works connected with a host PC for configurations setting.

There are many coding/decoding protocols to achieve audio management,

address, PABX interface to radio, networks interconnection systems.

The matrices are designed using the latest technologies and applications in the

field of Digital Signal Processing (DSP).

These devices are fully programmable and easily configurable both hardware

and software, thus providing excellent solutions for all needs of radio

communications in order to realize Operative Centres that manage complex

networks of tens of base stations.

All DSP modules have a connection bus that allows flexible composition of the

various blocks of the system to create "infinite solutions."

∞∞ SSPPEECCIIAALL PPRROOJJEECCTTSS

The depth knowledge of radio-communication techniques, hardware and

software design capacity and enthusiasm that characterizes us in front of new

challenges, led us several times, together with our customers, to face to and

successfully solve complex problems implementing vanguard systems.

1999 – Project Zenit

National Marine Reception System, in HF range,

based on 42 antennas digitally collimated. With

this system you can communicate from Central

Rome through multiple ionospheric reflections,

with every part of the Earth.

Telecom Italia

2000 - Project Poseidon

National integrated system for Maritime

communication in VHF range.

It allows communication between the national

telephone network and vessels in territorial

waters.

Telecom Italia

Main security

VHF sities

Ustica

Pantelleria

Erice

Gela

Caltabellotta

Siracusa

F.SpuriaCefalu'

C.Armi

P.Stilo

C.Colonna

Abate Argento

M.Calvario

Capri

Posillipo

S. Tuono

P.Cervo

M.MoroM.Limbara

Osilo

C.Spina M.Serpeddi

M.ne Rosso

M.Cavo

Silvi

M.Secco

M.Conero

Ravenna

F.Garibaldi

M.Cero

PiancavalloConconello

M.Bignone

Castellaccio

Zoagli

Gorgona

M.Nero

Argentario

PALERMO

ROMA

Grecale

T.Chiaruccia

C. Lato

M. ParanoM. TuluiB.UrbaraM.Sardo

Casa d’Orso

MMSI

002470001 (Roma)

002470000 (Group)

MMSI

002470002 (Palermo)

002470000 (Group)

Varco del saliceCentro di Supervisione di Roma

Centro di Supervisione di Palermo

Main security

VHF sities

Ustica

Pantelleria

Erice

Gela

Caltabellotta

Siracusa

F.SpuriaCefalu'

C.Armi

P.Stilo

C.Colonna

Abate Argento

M.Calvario

Capri

Posillipo

S. Tuono

P.Cervo

M.MoroM.Limbara

Osilo

C.Spina M.Serpeddi

M.ne Rosso

M.Cavo

Silvi

M.Secco

M.Conero

Ravenna

F.Garibaldi

M.Cero

PiancavalloConconello

M.Bignone

Castellaccio

Zoagli

Gorgona

M.Nero

Argentario

PALERMO

ROMA

Grecale

T.Chiaruccia

C. Lato

M. ParanoM. TuluiB.UrbaraM.Sardo

Casa d’Orso

MMSI

002470001 (Roma)

002470000 (Group)

MMSI

002470002 (Palermo)

002470000 (Group)

Varco del saliceCentro di Supervisione di Roma

Centro di Supervisione di Palermo

2004 - Project AIS

Control and monitoring system of boats position

in the Italian territorial waters.

Telecom Italia

2008 - Project Location Interfering

Airport integrated system for monitoring and

localization of signals interfering with aircraft

communication channels.

The system integrates two localization

technologies:

• goniometric estimate of the signal direction

(beam forming)

• estimate of the difference in arrival times on

different sites (hyperbolic interferometry)

The monitoring network will map in real time,

the presence and position of RF signals sought.

∞∞ TTHHEE AACCHHIIEEVVEEMMEENNTTSS

Major achievements of Radio Activity (with Italian and foreign partners):

∞∞∞∞ 300 radio stations in 450MHz

band for fast data transmission∞

point-to-multipoint.User:

ALBACOM.

∞∞∞∞ 700 radio stations in 450MHz

bandfor point-to-point

communication. User: WIND.

∞∞∞∞ supply of systems based on IP

modem RA-md1 for use with

“over the mains”

communication systems. User:

ENEL Distribuzione.

∞∞∞∞ radio stations for point-to-point

connection. User: EDISON.

∞∞∞∞ simulcast radio network for

Watch services. User: FIAT.

∞∞∞∞ simulcast VHF radio network

for Polstrada in Val d'Aosta

region.

∞∞∞∞ emergency radio coverage for

Fire Brigades in Lötschberg rail

tunnel between Frutigen and

Raron (Switzerland): 34 km of

tunnels with 26 simulcast radio

stations linked by multiplex.

∞∞∞∞ simulcast VHF radio network

with UHF links for the

Commonwealth of Engelberg

(Switzerland).

∞∞∞∞ simulcast UHF radio network

with UHF links for data and

audio transmission. Client:

Aqueduct of Romagna.

∞∞∞∞ simulcast VHF radio network

with UHF links for Autostrade

Valdostane.

∞∞∞∞ simulcast VHF radio network

with mixed connection via

multiplex and “over the mains”

carrier with delays self-

calibration through the GPS

signal. Client: Valais Electric

Body (Switzerland).

∞∞∞∞ simulcast VHF radio network

with UHF links for Mountain

Region of Campania.

∞∞∞∞ simulcast VHF radio network

with UHF links for Alpine

Region Marche.

∞∞∞∞ emergency radio coverage of

motorway tunnel in Amberg for

ASCOM Austria.

∞∞∞∞ communications management

matrix for 118 (Rescue)

Liguria.

∞∞∞∞ three channel emergency

simulcast radio network with

optical links for radio coverage

of motorway tunnel in Liguria.

∞∞∞∞ three simulcast VHF radio

network with UHF links for

Region Liguria.

∞∞∞∞ several radio network with UHF

links and microwave link for

radio-mobile communications

networks.