DIGITIZE Dipole-Lo User manual

Order Unit: P/N 900489-XXXX, Specify frequency Cut-Sheet P/N 750 9 -000 Rev. E 03/ 5
Specifications Subject to Change Without Notice
Digitize Inc.
■ 58 Edison Road ■ Lake Hopatcong ■ New Jersey ■ 07849
Tel: [phone] Fax: [phone] ■ Website: http://www.digitize-inc.com
FirstWhen seconds count!
™
DIPOLE-LO/DIPOLE-HI EXTERNAL MOUNT ANTENNA
25-100 Mhz/108-222 Mhz
Features
• Available in 25- 00 Mhz or 08-
222 Mhz
• Aircraft aluminum construction
• PL-259 Coax connector at
antenna base
• Antenna is cut to user frequency
• Lightning protection is provided
by gap inside the insulator
• Operates with any transmitter
requiring a 50 Ohm load.
Additional Material Required
. Support pipe, threaded on one
end. Minimum length is 5 ft.
(dipole lo) or 3.5 ft. (dipole hi).
2. Lightning arrestor enclosure for
LAC-2, ground wire and ground
rod.
3. Two lengths of RG-8/U coaxial
cable with PL-259 connectors.
(First length is from antenna to
lightning arrestor, second length
is from arrestor to transmitter or
receiver.) AUHF to BNC adapter
is required for some transmitters.
4. Antenna support.
5. Noalox or equivalent electrical
grease.
6. Electrical conduit, clamps, and
miscellaneous hardware based
on site requirements.
Product Information
The Dipole-Lo and Dipole-Hi antennas are
unity gain half wave dipole antennas. They
are constructed of aircraft aluminum to help
prevent corrosion.
The antennas are available in 50- 00 Mhz
range and 08- 74 Mhz range. Antenna
can be mounted on poles, roofs, or walls
with the proper field-supplied mounting
hardware. The antenna must be installed
with proper grounding for lightning
protection.
Please see reverse for mounting
instructions.

Specification
Order Unit: P/N 900489-XXXX, Specify frequency Cut-Sheet P/N 750 9 -000 Rev. E 03/ 5
Specifications Subject to Change Without Notice
Support Typ
• Dipole-Lo
Standard: .25 in. pipe by 5 ft. min.
Optional: ¾ in. pipe and in. pipe
• Dipole-Hi
Standard: .25 in. pipe by 3.5 ft. min.
Optional: ¾ in. pipe and in. pipe
Skirt
Standard:2 5/8 in.
Optional: 2 in. and 2 ¼ in.
Pow r Output: up to 500 Watts
Output Imp danc : 50 Ohms
Tubing
• Dipole-Lo
Standard: vertical brass ¾ in.
diameter tube, capped
Optional: / 6 in. and 5/8 diameter
tube
• Dipole-Hi
Standard: vertical ½ in. diameter rod
Optional: 3/8 in. rod
W ight
• Dipole-Lo: approximately 4-5 ½ lbs.
• Dipole-Hi: approximately ½ -2 lbs.
Polarity: vertical
Installation Information
Building Mount Installation
. At the antenna site, mount the selected antenna support to the building.
2. Connect the lightning arrestor to the building. Run the ground wire down to the nearest
earth ground per electrical code.
3. Slide the six-foot length of RG8/4 through the support pipe. Connect the PL-259
connector from the threaded end of the pipe to the base of the antenna. Connect the
pipe to the base of the antenna. Use care not to twist the cable.
4. Slide the skirt to the antenna by using the six stainless steel screws and lock washers
supplied.
5. Connect the skirt to the antenna by using the six stainless steel screws and lock
washers supplied.
6. Place the antenna into the support and tighten mounting hardware.
7. Connect the cable from antenna to either side of the lightning arrestor. Connect the
second cable to the other side of the lightning arrestor.
8. Connect the other end of the second cable to the transmitter or receiver.
Street Box Pole Antenna Mount
. Aluminum street box pole must be already installed.
2. Slide the 9 foot length of RG8/4 through the support pipe. Connect the PL-259
connectors to the base of the antenna. Connect the pipe to the base of the antenna.
Use care not to twist the cable.
3. Slide the skirt of the antenna over the cable and pipe. Apply electrical grease onto the
base of the antenna where the skirt will connect.
4. Connect the skirt to the antenna by using the screws and lock washers supplied.
5. Place the antenna into the fitting on top of the pole and screw the assembly down.
6. Connect the other end of the coax cable from transmitter antenna output connector.
7. Connect the pole to a suitable earth ground as per electrical code.