Radio MFHFDSC

Marine hx-3000
medium and high frequency (MFHF) radio set MFHFDSC

The product
description

The main purpose

This device is
mainly used for high frequency communication of ships in A2 ~ A4 sea area

Main functions:

1) SSB voice
communication

2) GMDSS function

A)
“one-click” maritime rescue and distress alarm

B) six-way standard
GMDSS distress channel duty

C) alarm message
forwarding

Marine hx-3000
medium and high frequency (MFHF) radio set MFHFDSC

The product
description

The main purpose

This device is
mainly used for high frequency communication of ships in A2 ~ A4 sea area

Main functions:

1) SSB voice
communication

2) the GMDSS
function

A) one-click
maritime rescue and distress alarm

B) six-way standard
GMDSS distress channel duty

C) alarm message
forwarding

Technical
indicators

Electrical
performance index of transmitting part

Frequency range:
1.6mhz ~ 30MHz(emission);0.5mhz ~ 30MHz(receiver)

Frequency error: no
more than 10Hz.

Rated output power
(PEP) : 150W/100W/50W;

Intermodulation
distortion: better than -25dbc.

SSB automatic level
control (AGC)

When the input
impedance is 600 ohms, the line input: -20 ~ 10dBm;Local input: 20mV, output
change does not exceed 1.5db.

SSB telephone
frequency response: 300 ~ 3000Hz, better than 3dBc

Carrier
suppression: J3E: > 40dB;H3E: 4.5 ~ 6dB.

Continuous
operation of ship

The radio
transmitter works continuously for 15 minutes under the rated power, and the
change of output power relative to the rated power does not exceed 1.5db.

Receiving part of
the electrical performance indicators

Frequency audio
output amplitude

Headset: 1mW;

Speaker: 2W;

600 ohm linear
output: 0 10dB.

Frequency error: at
the end of preheating time, the frequency error does not exceed 10Hz.

Audio response: 300
~ 3000Hz, audio variation less than 3dB.

The sensitivity

J3E: -102dbm
(1.8uv), SINAD=20dB;

F1B: -112dbm
(0.58uV), when BER 10-2.

Total distortion
factor: 3%.

blocking

1. J3E:

1) when the useful
signal is +60dBuV, the blocking signal > +100dBuV;

2) the useful
signal is the sensitivity level, and the blocking signal ratio is at least
greater than 65dB.

2. F1B:

1) when the useful
signal is +60dBuV, the blocking signal > +100dBuV, and the bit error rate is
not less than 10-2;

2) when the useful
signal is sensitivity level +3dB, the blocking signal > +60dBuV, and the bit
error rate is not less than 10-2.

Spurious frequency
rejection ratio

J3E: > 60dB;

F1B: > 70dB, BER
> 10-2.

Relative audio
intermodulation: < -25db.

Conducting stray
emission

9khz-2ghz: < 2
nW;

2GHz-4GHz: <
20nW.

AGC features

When the input
changes by 100dB, the output changes by less than 2dB.

Input circuit
protection: input 30V RMS level at the receiving end of the radio antenna for
15 minutes without damage.

Environmental
adaptability requirement

Dry, dry heat
temperature: + 55 ℃ or less;

Damp and hot, humid
temperature: + 40 ℃ or less and 93% relative humidity, a cycle;

Temperature, low
temperature, low temperature 15 ℃ or higher;

vibration

A) sinusoidal
scanning frequency 2Hz to 13.2hz, displacement 1mm, vibration 2h;

B) sinusoidal
scanning frequency: 13.2hz to 100Hz, acceleration: 7m/s2, vibration: 2h;

C) sinusoidal
scanning frequency is 30Hz, and it vibrates on three coordinate axes for 2h;

corrosion

After 2 h salt
spray environment temperature + 40 ℃ under the condition of relative humidity of
90% 95%, hold

The next 7 days is
a cycle, a total of four cycles.

Noise and auditory
signals

In any place 1m
away from the device under test, the sound pressure detection of working noise
of the device shall not exceed 60dB(A).

When the sound
alarm is turned on, in any space at the front of 1m from the device under test,
the sound pressure of the alarm signal is between 75dB(A) and 85dB(A).

Compass safe
distance

The safe compass
distance of this device is 2m.

Power supply: rated
voltage 13.8v, maximum current 30A;

Weight: less than
8kg.