Hy-gain LC-160Q User guide

308 Industrial Park Road

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39759 USA

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INSTRUCTION MANUAL

General Description

The LC160Q was designed as an accessor y item
for the 18HT "Hy-Tower" antenna. It is easy to
install and adds the ability to have an antenna that

erates efficiently on 160 meters.

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Theory of Operation

LC-160Q

160 Meter Loading Coil Kit

for 18 HT Hy-Tower

4. Loop the 80 meter wire around upper insulator
1/4 bolt with solder lug. (Coil is now supported
in series with 80 meter wire.

5. Loop and secure the upper coil lead to this
same bolt.

The loading coil simply adds base inductance to
the antenna making it's electrical length 1/4 wave
length on 160 meters.

SWR and Feedline

The SWR on 160 meters can be as low as 1:1
with good ground conductivity if care is taken to
select the proper tap on the coil for your
particular installation. The feedline for the 18HT
is not altered in any way.

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The LC160Q is simple to operate. When the in­duction clip is tapped to the 80 meter point, the
18HT operates normally switching from 80 thru
10 meters automatically. When the induction clip
is placed at the 160 meter tap, the antenna is reso­nant on 160 meters. The switching can be done
with a relay if you wish.

Step-By-Step Installa tion of the

NOTE: The top wire goes through the hole in the
insulator making electrical contact with the wire
coming from the tower. The bottom wire does not
make electrical contact as it goes through the hol e
that the center wire is attached. (see Fig. 13, page
13 of manual.

6. Cut the 80 meter wire just long enough to fit
into sleeve of lug. (Solder in place.

7. Attach clip wire to base as shown.

8. For normal operation, this shorting wire
should be clipped to the top of the coil.

9. For operation on the lower portion of 80
meters, the induction clip should be clipped to
the third (3rd) turn counting from the top. This
will be determined by testing at your QTH for
the lowest SWR.

For operation on 160 meters, the induction clip
should be clipped between 35 to 40 turns from
the top. Again, this will be determined by test­ing for the lowest SWR at your QTH.

LC160Q Coil

1. Assemble LC160Q coil as shown in Figure 1.

2. Remove the 80 meter wire from the 18HT at
ebolt.

e

3. Hook up rope to lower insulator hole as shown

in Fi

ure l.

Maximum Power

150 Watts average on 160 meters, (300 PEP), for
1 KW average power we recommend the MK­160A.

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