WARNING
Keep this antenna away from the reach of
children or pets. When transmitting, the
antenna and antenna radials are hot with RF
proportional to the operating power.
If you mount your antenna on a roof and find the
roof space is too small for the radial system, you
can droop the radials over the edge of the roof at
almost any angle without seriously changing the
p-Irformance of the antenna. The radial system
must be insulated from the roof and connected to
a good ground for lightning protection. The
resonant radials must be at least 10 feet from
tower guy wires, mast guy wires or any other
wires or metal objects. Use the shortest path
possible between the antenna and an 8 foot
ground rod for the earth ground, using #6 or #8
copper wire. Mast mounting is identical to roof
mounting.
In any installation, use a good quality 50 ohm
coaxial transmission line such as Times RG-
213/u (solid), Belden 8214 (foam) or Belden
8237, 8267 or 9251 (solid).
Take extra care when soldering connectors to
foam dielectric coaxial cable. Weatherproof all
connectors which will be exposed to rain or ice
with Coax-Seal
or
another
similar
substance.
OPERATION
Connect the other end of your transmission line
to a good quality SWR meter and then to your
transmitter. While using low power (less than
200 watts output) check the VSWR across each
band from 3.5 to 29.7 MHz. Record this
information for future reference. See Table 4.
Check the VSWR periodically to ensure proper
operation.
This completes your installation of the Omni DX-
88.
Service Information
If you are unable to resolve your problem 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 the Troubleshoting Guides in Chapter 6
before you contact the Customer Service
Department. You should also record your VSWR
across all three bands before calling
You should retain
your
sales receipt or other proof
of purchase for antennas that are still under
warranty.
All requests, inquires, warranty claims, or
for ordering replacement parts, contact:
Attach the transmission line to the bottom of the
base assembly and tighten securely. Tape the
coax to the tripod for strain relief when roof
mounting. Bury the coax, when ground mounting,
for protection from lawn mowers.
Hy-Gain
308 Industrial Park Road
Starkville, Mississippi
39759 USA
Phone: 662-323-9538
FAX: 662-323-6551
CAUTION: Align the bottom tube of the DX-88
antenna parallel to your support mast before
tightening. Your support mast must be 1 1/2" - 1
5/8" (38-41 mm) O.D. Tighten the U-bolts
_securely using open-end wrenches! If one U-
bolt is loose, the bracket will twist.
RIGHT
WRONG
Содержание DX-88
Страница 1: ...8 Band HF Vertical 80 thru 10 Meters Model DX 88 Instruction Manual ...
Страница 6: ...TYPICAL VSWR CURVES Cont ...
Страница 18: ...Figure 11 Connecting Trap Assemblies ...
Страница 23: ...TOP VIEW TOP VIEW Figure 12 DX 88 Overall View ...