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12 Especificações principais
Português
Especificações principais
MÉTODOS DE TESTES
ETS 300-296 - IEC 529 IP54
GERAL
Frequências ......................................................446.00625 - 446.09375 MHz
Número de canais ......................................................................................99
Controlo de frequência ..........................................................PLL Synthetiser
Canalização ......................................................................................12,5 KHz
Faixa de temperatura operativa ................................................-30 °/ +60 °C,
Alimentação ....................................................7.2 Vdc bat. NiMH 1300mA/h
Estabilidade de frequência ..............................................................±2.5ppm
TRANSMISSOR
Potência de saída (output) RF ............................................0.5W ERP ± 1dB
Sistema de modulação ....................................................................F3E (FM)
Desvio máximo ................................................................................±2.5 KHz
Potência do canal adjacente ............................................................< -60dBc
Emissão de espúrias ......................................................................-70dB min.
Distorção de áudio..............................................................................5% max
RECEPTOR
Tipo de circuito ....................................................................Conversão dupla
Frequências Intermediárias............................................45.1 MHz, II 455 KHz
Sensibilidade ..........................................................< 0.35µV @ 12 dB SINAD
Sensibilidade de Squelch ..........................................................10 dB SINAD
Drenagem de corrente
Com squelch (com economizador de energia)........................18mA, típico
Com squelch (sem economizador de energia) ........................55mA, máx.
Audio medido..........................................................................160 mA, max
Proteção no canal utilizado ................................................nos termos legais
Selectividade do canal adjacente........................................nos termos legais
Rejeição de espúrias............................................................nos termos legais
Intermodulação ....................................................................nos termos legais
Blocking ..............................................................................nos termos legais
Ruído e zumbido ..........................................................................-40dB min.
Potência (output) de áudio ................................400mW at 5% T.H.D. (1KHz)
AF & sinais
Potência áudio .......................................................................... > 500mW
CTCSS sensibilidade de decodificação......................................> 8 dB Sinad
CTCSS selectividade de decodificação ................tons de aceitação ±0,5%,
......................................................................................tons de rejeição ±3%
Especificações mecânicas
Dimensões ......................................................133x 40x 62 mm (com bateria)
Peso ................................................................................362 gr (com bateria)
Bateria ..................................................................................Encaixe posterior
Acessório/conector para programar ..............................................mono Jack
Água e poeira ..............................................................................IEC529 IP54
Istr. HP446 rev.1 - portogh 20-07-2001 16:32 Pagina 12
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