HV Sistemas is specialized in the development and manufacturing of radiocommunications support equipment, mainly intended for data transmission over radio. Most of our radiocommunication equipment are external or internal accessories that can be used along with a large range of radio equipment.
Our equipment is widely used in large automation networks control, as for example water supply networks, irrigation network contol, fleet management, remote command and alarm systems, etc.
Our engineering department has an intensive experience with radiocommunications and data transmission, and will be happy to attend any question about specific applications of our equipment, as well as about compatibility of our equipment with existing networks.
Radiocommunication Products Catalogue
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 Model P8503 is an integral radiomodem, operating in the license-free 868/869 MHz band, with a maximum output power of 0.5W and providing a maximum 19200bps data over radio baud rate. Thank to its output power and its excellent sensitivity, it can provide data communication for distances well over 5Km without the need of an administrative license. |
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P8602 -Multiple band inversion voice scrambler with optional man-down functionality |
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 Model P8602 is a voice scrambler using multiple audio band inversion. It has 65536 useable keys, providing better security than conventional split-band inversion voice scramblers, within a competitive price. It is intended for use with Motorola Professional Series mobile and portable radios with PROIS interface. As an option for portable radios, this scrambler can also provide man-down functionality. |
 Model P8707 is an external modem, than can be used with a wide variety of radio that could provide the necessary signals. Based on a powerful digital signal processor, using FSK, FFSK and GMSK modulation, this modem is optimized for use with remote units using IEC 60870-5-101 protocol in balanced mode. |
 Model P8607 is a modem optimized for use with remote units using IEC 60870-5-101 protocol in balanced mode, designed to be incorporated inside Motorola Professional Series radios. Based on a powerful digital signal processor, it can use FSK, FFSK or GMSK modulations. It provides up to 14400bps data over radio baud rates. |
 Model P9907 is a GMSK modem with 4800 and 9600bps data over radio baud rates. |
 Model P9802 is a FFSK modem, widely used in remote control and command applications. Extremely reliable and robust, it is now a reference in the market. It provides 1200 and 2400bps data voer radio baud rates. |
 P8402-Crypto is a modem with embedded data ciphering using Twofish high-security data encryption algorithm. This modem is intended to be used with Professional Series Motorola Radios with PROIS interface, provides data over radio speeds up to 14400bps and Reed-Solomon forward error correction. |
| Model P8102 is a GPS-modem, designed for use in fleet management applications. It includes a FFSK modem with 1200 or 2400bps selectable baud rates, and uses Reed-Solomon forward error correction. |
 Model P8008 is a low-cost CTCSS tone panel, for use in radio networks with communitary repeaters. It can manage up to eight different user groups, and incoming and outcoming CTCSS codes can be independently selected for each user group. |
