Instruction Manual

- 10 -
Depending on SWR condition of your antenna system, there may appear some
RF stray on the DC power cord connecting rear socket and DC power supply. If
the voltage meter of your DC power supply shows an unstable behavior as you
key the radio and HL-45B amp, insert ferrite cores or clip both ends of DC
power cable with clip-on ferrite cores. (For further details, consult with your
local radio dealer or manufacturers of respective equipments.)
(*Visit websites of “Amidon Associates”, “Palomar Engineerings” on ferrite
cores for RFI.)
ＬＦ
+
-
13.8V POWER SUPPLY
Power Supply.
Ground the
HL-45B
Ceramic Capacitor
50V 0.1uF〜0.001uF
25V 10uF〜100uF
Insert line filter.
Electrolytic Capacitor
1. Insert capacitors of several capacitance values to the output terminal of the power supply.
2. Put a clip-on type ferrite core on the power supply cable.
(Bundle both + and - cables and clip them tight.
Core's inner diameter should be equal to outer size of two combined DC cords.)
CLIP-ON FERRITE CORE by TDK, Amidon, Palomar etc.
HOW TO PREVENT RF INTRUSION TO DC POWER SUPPLY