AMERITRON SDC-103 Manuel d'instruction - Page 5

Parcourez en ligne ou téléchargez le pdf Manuel d'instruction pour {nom_de_la_catégorie} AMERITRON SDC-103. AMERITRON SDC-103 13 pages. Automatic screwdriver antenna controller for icom radios

Imprimer la page

SDC-103 Automatic Screwdriver Controller (ICOM)

Take care and follow your antenna manufacturer's suggestions about routing

these wires for a mobile installation. Avoid routing control wires with the feed

line. Make sure a RF choke is placed around the control lines at the antenna.

The mono data cable should have an RF choke as well.

WARNING: An RF choke must be placed around the control lines at

the antenna. The Controller may be damaged if an RF

choke is not used. MFJ recommends a choke to be

placed on the data cable.

Motor Operating Voltage

This control unit is designed to operate with a screwdriver antenna that operates

on 12 volts. Many antennas operate on only 3 or 4 volts, a Dropping Resistor

can be used inline with the motor wires to bring the voltage down. Consult your

antenna manual or manufacturer for the operating voltage.

Important:

Failure to adjust and operate your screwdriver antenna at

the proper voltage will damage the antenna motor.

If a dropping resistor is necessary, a good value to try is 5 Ω/10 Watts. This

resistor will need to be placed inline on one of the motor control lines anywhere

in between the MFJ-1924 and the antenna. If you are not sure whether or not

this resistor is necessary for your antenna, try it and inspect the torque and speed

of the motor. If the motor is too slow, reduce or eliminate the resistance. Use of

12 volts with a 3 or 4-volt antenna will result in failure of the motor.

WARNING: Do not apply voltages greater than 18 volts to this unit,

or permanent damage to the unit and antenna may result.

The table below lists the features and options of the MFJ-1924. Use this table

and the following section to adjust these settings specific to your screwdriver

antenna and its requirements for proper operation.

Function

Reset

Hold Down button

while powering up unit.

Auto Park

Depress Up and Down

simultaneously for 2

seconds.

Press Setup Button

Setup

while powering up unit.

Band

Press Skip Button while

Activate By:

Description

Clears all memory positions

Bottoms antenna and zeros the counter

Allows setting the trip current, relay

delay, and up features.

Choose which bands are active for

Instruction Manual