Installation
You will install your LDG balun between your tuner (or transmitter/transceiver if you are not
using a tuner) and your antenna. You can attach it directly to the SO-239 output jack of your
tuner or transmitter/transceiver, or you can install it remotely at the end of any length of 52 ohm
coaxial cable.
Direct connection:
You can mount your LDG balun directly to the output jack of your tuner using a male-male PL-
259 adapter (not supplied). Simply attach the adapter to the balun, then attach the balun to the
output jack. Make sure the balun has adequate mechanical support, so it does not place excessive
torque on the antenna jack of your tuner or radio.
This type of connection is only recommended if the tuner is mounted remotely or the operating
position is outdoors. The use of ladder line indoors can sometimes lead to RFI issues near the
operating position. Whenever possible, use the remote connection as shown below.
R
B
A
-1 4:
1 Ba
lu
n
Ba
la
n
ced
Un
b
al
an
ced
LDG
El
ectr
on
ics
Tuner
An
te
nna
Ladder Line to antenna
Remote connection:
You can mount your LDG balun remotely, connecting it to your tuner with any length of 52 ohm
coaxial cable of suitable power handling capacity (typically RG-58, or some version of RG-8).
Properly soldered PL-259 connectors will be far more satisfactory than crimp-on or “solderless”
connectors. If you mount your balun outdoors and exposed to direct weather, LDG recommends
that you waterproof it as described above.
4
RBA-
1 4:1
Balun
Bal
an
ce
d
U
n
ba
la
nc
ed
LD
G
E
lectro
ni
cs
Tuner
Ante
n
na
Ladder Line to antenna
52 Ohm Coax
(any length)
