Hy-Gain MK-80 User manual

3
GENERAL DESCRIPTION PACKING LIST
The Hy-Gain MK-80 add on kit contains • 5 hose clamps all
of the necessary parts and instructions
to make a Hy-Gain 14AVQ vertical • 10 36" spokes (2 extra) resonate on 80
meters. The 80-meter kit • Loading coil assembly features stainless steel hardware
and
hose clamps. The loading coil is wound • 18 4-40 screws (2 extra)
onto a 1 inch fiberglass tube using #14 • 18 4-40 kep nuts (2 extra)
Teflon insulated wire for extended life.
The antenna is capable of 1 KW PEP on , 1 1/8" X 17" aluminum tube 80-
meters. secure the MK-80 to an existing AV
1. Remove the parts from the 14AVQ antenna. See Figure 1.
packaging. Check to see that each is
present using the packing list above. 6. Place four capacitance spokes into
each of the spoke rings located on the
2. Place a 4-40 screw in each of the 16 loading coil assembly and secure holes on the
capacitance spoke rings them in place by tightening the 4-40 and secure them using a
4-40-kep screws.
nut. Refer to figure 1. Snug each one
using a 5/16" nut driver. Be careful
not to lose the screws and nuts.
3. Place the large end of the 1 1/8" X
17" aluminum tubing over the end of
the loading coil assembly tube as
shown in Figure 1.
4. Secure the tubing in place with one of
the supplied hose clamps. Be sure to
place the connection tab between the
aluminum tubing and the clamp as
shown in Figure 1.
5. Place the remaining hose clamp onto the
aluminum tube. This clamp is used to

SETUP
already on the antenna, remove it.
Refer to Figure 1.
3
The AV
-
14AVQ should be assembled and
tuned using the instructions supplied with
the
antenna. The following section
describes the
preparations for the installation of the MK-
80 to
the AV-14AVQ.
PREPARATION
1. Assemble
the antenna using the supplied
instructions. Figure 1 on
page 4 of the
AV-14AVQ manual
gives approximate
dimensions.
2. In addition to normal assembly, hose
clamps need to be
placed above each
of the black covers on the traps.
These will provide extra strength to
the traps for the additional weight of
the MK-80.
a. Place one of the hose clamps
supplied
with the MK-80 directly
above the
black ABS cover of trap 11-
10.
Figure 1 on page 4 shows
the
location of this trap.
b. Place one of the hose clamps
supplied
with the MK-80 directly
above the
black ABS cover of trap 14-
15.
Figure 1 on page 4 shows
the
location of this trap.
c. Place one of the hose clamps
supplied
with the MK-80 directly
above the
black ABS cover of trap 15-
20.
Figure 1 on page 4 shows
the
location of this trap.
d. Do not place tubing section M5
onto the antenna. If this section is
3. Place the assembled MK-
80 onto the
assembled AV-14AVQ antenna. The
1
1/8" x
17" tubing has been fitted to
accept the AV-14AVQ.
4. Secure the tubing in place by
tightening
the hose clamp placed on the MK-
80
in step 5 of the assembly section.
5. Follow the instructions given to
choose a
mounting location for the
antenna.
NEVER IN
STALL AN ANTENNA
NEAR POWER LINES.
TUNING
Place the antenna in its final operating location
for tuning. Connect an SWR
analyzer to the
antenna with a suitable
length of 50 Ohm coax.
An SWR meter and
radio may be used instead
of an analyzer.
10,15,20 METERS
Tune the AV-
14AVQ according to the
instruction manual. Figure 1 on page 4
gives the dimensions for operation on 10,
15, and 20 meters. Remember to start
with
the 10 meter band.
40 METERS
The antenna length above the 20 Meter
trap is the frequency ad
justment for 40
below for proper tuning. Follow the
steps
below for proper tuning. Never cut
the
capacitance spokes on the rounded ends.

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1.
Check the resonance of the antenna on
the
40 Meter band. The SWR should be
at a
minimum near 7 MHz or below.
2. To raise the operating frequency cut
small
lengths such as 1/4 inch lengths
from each of
the four 40 Meter spokes.
Check the
resonance point again.
Continue the previous steps until the desired
frequency is reached.
80 METERS
The 2:1 band-with on 80 mete
rs is
approximately 40KHz. The top
capacitance
spokes are adjusted to
change the resonant
frequency on 80 meters. Cutting the
four
upper capacitance spokes will raise
the
resonant frequency. Follow the steps
below
for proper tuning. Never cut the
capacitance spokes on the rounded ends.
1. Check the resonance of the antenna
on the 80 Meter band with the spokes
installed.
The SWR should be at a
minimum near 3.5 MHz.
2. To raise the operating frequency cut
small lengths such as '/4
inch lengths
from each of the four 80 Meter
spokes.
Check the resonance point again.
Continue the previous steps until the desired
frequency is reached.
SERVICE INFORMATION
If you have a problem you are unable to
resolve or if you need to order
replacement
parts, you should contact the Hy-
Gain
Customer Service Department.
You should fully research your problem
by going through this manual before you
contact the Customer Service Department.
You should retain your sales receipt or
other proof of purchase for items that are
still under warranty.
All requests, inquires, warranty claims, or
for ordering replacement parts, you
should contact:
Hy-Gain
308 Industrial Park Road
Starkville, MS 39759 USA
Tel: [phone]
Fax: [phone]
NOTES:

h
y
-
gain®
LIMITED WARRANTY
hy-gain Warrants to the original owner of this product, if manufactured by hy-gain
and
purchased from an authorized dealer or directly from hy-gain
to be free from defects in
material and workmanship for a period of 12 months for rotator products and 24 months
for
antenna products from date of purchase provided the following terms of this warranty
are
satisfied.
1. The purchaser must retain the dated proof-of-purchase (bill of sale, canceled check,
credit
card or money order receipt, etc.) describing the product to establish the
validity of the
warranty claim and submit the original or machine reproduction of such proof-of-
purchase
to hy gain at the time of warranty service. hy-gain shall have
the discretion to deny
warranty without dated proof-of-purchase.
Any evidence of alteration, erasure, or forgery
shall be cause to void any and all warranty terms immediately.
2. hy-gain agrees to repair or replace at hy-gain's option without charge to the original
owner
any defective product under warranty, provided the product is returned postage
prepaid to
hy-gain with a personal check, cashiers check, or money order for $8.00
covering postage
and handling.
3. Under no circumstances ishy-gain liable for consequential damages to person or property by
the use of anyhy-gain products.
4. Out-of-warranty Service: hy-gain will repair any out-of-warranty product provided
the unit
is shipped prepaid. All repaired units will be shipped COD to the owner. Re
pair charges will
be added to the COD fee unlessother arrangements are made.
5. This warranty is given in lieu of any other warranty expressed or implied.
6. hy-gain reserves the right to make changes or improvements
in design or manufacture
without inc
urring any obligation to install such changes upon any of the products previously
manufactured.
7. All hy-gain products to be serviced in-warranty or out-of-warranty should be
addressed to hy gain, 308 Industrial Park Road, Starkville,
Mississippi 39759, USA and must be accompanied by a letter describing the
problem in detail along with a copy of your dated proof-of-purchase.
8. This warranty gives you specific rights, and you may also have other rights which vary from
state to state.