Alinco EDX-3 Kullanım Kılavuzu - Sayfa 14
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CONTROL CABLE SIGNALS
Terminal information
TKEY
TUNE1
13.8V
GND
About extending cables length
The coax and control cables may be extended at your own responsibilities.
Use larger gauge cables when you extend them to minimize the signal loss.
Make same connections as the originals, and be sure to use high-quality
cables for durability especially in case of outdoor installation.
About common mode and filtering
As a character of automatic tuners, you should take countermeasures
against common mode effects. It consists of installing ferrite coils and/or
beads to the coax and controll cables of EDX-3. This also depends on such
factors as the diameter and length of cables. You may search information
by using key words like "antenna tuner common mode filter" on the internet.
Careless installation and operation will cause poor efficiency, damages to
equipment and electric shock. Damages caused by common mode current
voids warranty.
13
Terminal
Key voltage. Grounded during tuning. Max. current
drain 100 mA.
Receives start voltage. Max. current drain 1 mA
13.8 V DC + input terminal. Max. current drain 2 A
Ground terminal for above signals.
Description
GND
13.8V
TKEY
NC
TUNE1
TKEY
TUNE1
13.8V
GND