Motorola MICOM-500E-A Manuel d'utilisateur télécharger pdf (Page 5)

HF-SSB Micom –500E

HF-SSB MICOM-500E COMPONENTS

1. MICOM 2E-Trunk

For Micom 2E-Trunk specification see user manual 6802952C60

2. 500W HF Linear Amplifier Unit

Input Voltage: 14 VDC

Power Output: 1.6-30MHZ: 500W PEP and average

24-30MHz reduced performance up to –2dB.

The power amplifier is fully protected by microprocessor control. This

circuitry dynamically monitors all amplifier parameters, and provides

adjustments and protection against high VSWR, under voltage, over current

and high temperature conditions.

Current- protection against over current condition (exceeding 100 amps) and

current imbalance between amplifier modules (exceeding 20%). When one of

these two conditions exists, the amplifier turns off-line. To reset the

transceiver, power down the amplifier and restart the unit.

Volt - protection against under amplifier turns off-line. To reset the

transceiver, power down the amplifier and restart the voltage condition (less

than 10 VDC). When this condition exists, the unit.

VSWR –when a sampled VSWR exceeded 4:1 and the power reflected back

to the amplifier is higher than acceptable, the amplifier turns off-line. To reset

the transceiver, power down the amplifier and restart the unit.

Temp - protection against over temperature condition

Atten –as input RF power level increases beyond 60-70 watts, the attenuation increases

automatically. The Attenuate remains engaged until the input drops to 30 watts.

ALC Control- provides adjustable ALC feedback voltage.

A positive voltage is present on the Amplifier line for use with the equipped transceiver for ALC

input control.

PTT keying mode and Band input filter selection enabled automatically. Band switching time is

typically 15 msec or less.

This automated capability is ideal for remote or unattended operating site application.

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Motorola MICOM-500E-A Manuel d'utilisateur Page 5