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ICOM IC-7851 Transceiver HF/50MHz 200W

ICOM | cód: IC-7851

US$ 16.999,00
Availability: IN STOCK
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ICOM IC-7851 Transceptor HF / 50 MHz - 200 Watts de Potência

  • Sintonizador (Acoplador) Automático de Antenas INCORPORADO ao rádio;
  • Mostra o escopo do espectro de frequência em tempo real;
  • Display Colorido, de alta resolução;
  • SSB, CW, RTTY, AM e FM;
  • 2 Anos de Garantia no Brasil.

O "Auge da Perfeição em HF"

Contestadores e DX estão sempre à procura de uma vantagem competitiva para puxar magicamente o sinal fraco que seja o país raro ou multiplicador que eles precisam para subir na lista, seja por. antenas maiores, maior ganho de pré-amplificadores e outros dispositivos em linha, que são grandes. No entanto, o que acontece dentro do rádio com todos os sinais de que vem para baixo a sua linha de alimentação pode derrotar todos os seus esforços.

Com o projeto do IC-7851, os engenheiros da ICOM focaram em um novo oscilador local (LO), que reduz drasticamente o ruído de fase. Como resultado deste projeto, a pureza da LO atinge uma condição recíproca Dynamic Range mistura (Rmdr) de 110dB. Além da LO incrivelmente limpo o que lhe permite ouvir os sinais fracos, o novo design âmbito espectro permite que você veja os fracos! Processadores mais rápidos maior ganho de entrada, maior resolução de vídeo e um sinal mais limpo a partir LO do receptor vai lhe dar uma nova janela para o mundo da RF. Adicionando este desempenho e funcionalidade para ambos os receptores de dar-lhe um portal âmbito dupla.

 

 

General

Frequency coverage*1
U.S.A. Version
RX
TX
 
 

 
 
0.030– 60.000 MHz*2
1.800– 1.999 MHz
3.500 – 3.999 MHz
5.255 – 5.405 MHz*2
7.000 – 7.300 MHz
10.100–10.150 MHz
14.000– 14.350 MHz
18.068–18.168 MHz
21.000– 21.450 MHz
24.890–24.499 MHz
28.000– 29.700 MHz
50.000–54.000 MHz
 
*1 Frequency ranges vary depending on version.
*2 Some frequency ranges are not guaranteed.

Mode

USB, LSB, CW, RTTY, PSK31/63, AM, FM

Number of channels

101 (99 regular, 2 scan edges)

Antenna connector

SO-239×4 and BNC×2 (50Ω unbalanced (Tuner off))

Power supply requirement:

85–265V AC

Temperature range

0°C to +50°C; +32°F to +122°F

Frequency stability

Less than ±0.05ppm

(0°C to +50°C @ 54MHz, after warm up)

Frequency resolution

1Hz (minimum)

Power supply requirement

85–265V AC

Power supply requirement

Tx Max. power: 800VA
Rx Stand-by: 200VA (typ.)
Max. audio: 210VA (typ.)

Dimensions

425×149×435 mm; 16.73×5.87×17.13 in

Weight

23.5 kg; 51.8 lb

 

Transmitter

Output power
SSB, CW, RTTY, PSK31, FM
AM
Transverter Connector, CW

(continuously adjustable)
5–200W
5–50W
More than –20dBm

Modulation system
SSB
AM
FM

 
Digital P.S.N. modulation
Digital low power modulation
Digital phase modulation

Spurious emission

More than 60dB (HF bands)
More than 70dB (50 MHz band)

Carrier suppression

More than 63dB

Unwanted sidebandr suppression

More than 70dB

δTX variable range

±9.999 kHz

Microphone impedance

600Ω (8-pin connector)

 

Receiver

Receive system

Double conversion super-heterodyne system

Intermediate frequencies
Main receiver:
 
Sub receiver:

 
64.455MHz/36kHz (1st/2nd)

64.555MHz/36kHz (1st/2nd)

Sensitivity (typical)
SSB, CW, RTTY, PSK31, FM
0.1–1.799 MHz
1.8–29.999 MHz
50.0–54.0 MHz
AM
0.1–1.799 MHz
1.8–29.999 MHz
50.0–54.0 MHz
FM
28–29.999 MHz
50.0–54.0 MHz

 
(BW: 2.4 kHz at 10dB S/N)
0.5μV
0.16μV
0.13μV
(BW: 6 kHz at 10dB S/N)
6.3μV
2μV
1μV
(BW: 15 kHz at 12dB SINAD)
0.5μV
0.32μV

Squelch sensitivity (Pre-amp: OFF)
SSB, CW, RTTY, PSK
FM

 
Less than 5.6μV
Less than 1μV

Selectivity (representative value)
SSB (BW: 2.4 kHz, sharp)
 
CW, RTTY, PSK (BW: 500 Hz, sharp)
 
AM (BW=6KHz)
 
FM (BW: 15 kHz)
 

 
More than 2.4 kHz/–3dB
Less than 3.6 kHz/–60dB
More than 500 Hz/–3dB
Less than 700 Hz/–60dB
More than 6.0 kHz/–3dB
Less than 15.0 kHz/–60dB
More than 12.0 kHz/–6dB
Less than 20.0 kHz/–60dB

Spurious and image rejection ratio

More than 70dB

Audio output power

More than 2.6W at 10% distortion with an 8Ω load

RIT variable range

±9.999kHz

 

Antenna Tuner

Matching impedance range

HF bands: 16.7Ω to 150Ω unbalanced (VSWR better than 3:1)
50MHz: 20Ω to 125Ω unbalanced (VSWR better than 2.5:1)

Minimum operating power

HF bands: 8W
50MHz band: 15W

Tuning accuracy

VSWR 1.5:1 or less

Insertion loss

Less than 1.0 dB (after tuning)

All stated specifications are subject to change without notice or obligation.

The LCD display may have cosmetic imperfections that appear as small or dark spots. This is not a malfunction or defect, but a normal characteristic of LCD displays.

Supplied Accessories

  • Rack mount handles
  • SD card
  • AC power cable
  • Spare fuses
  • Plugs
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