Section 7 - Antennas
PAGE 26
05/01/97 REV H
FIGURE 7 - Northstar AN195 H-Field antenna
7.5.3 Cable length
The length of the RG-58U coaxial cable must be a minimum of 20 feet,
but not more than 300 feet. Coil up any unused length of cable;
do not
cut it to less than 20 feet!
Be sure that all cable connectors are securely
fastened, and that the cable itself isn’t subject to any tight bends.
7.5.4 Mounting
location
Although the H-field antenna is generally less susceptible to impulse
noise than the whip antenna (see below), the H-Field antenna’s location
remains critical in achieving optimum performance.
7.6 Whip antenna (8410 ACU)
7.6.1 Description
The Northstar 8410 Antenna Coupling Unit (ACU) consists of two poly-
carbonate pieces, a base and an upper unit, which is threaded to accept a
standard four-foot fiberglass whip antenna.
7.6.2 Dimensions
The 8410 dimensions are listed below.
Height = 11 inches
Diameter = 2.6 inches
Weight = 1.5 pounds
7.00
2.5
3.5
TNC
NOTE:
The actual four-foot whip antenna is NOT included
with the Northstar 8410 ACU antenna system.
Summary of Contents for 8700
Page 2: ......
Page 10: ......
Page 16: ...Section 2 Introduction PAGE 6 05 01 97 REV H ...
Page 20: ...Section 3 Packaging PAGE 10 05 01 97 REV H ...
Page 32: ...Section 6 GPS beacon combination receivers PAGE 22 05 01 97 REV H ...
Page 46: ...Section 8 Input output configurations PAGE 36 05 01 97 REV H ...
Page 52: ...Section 9 Connector pinouts PAGE 42 05 01 97 REV H ...
Page 76: ...Section 12 8X00 engine monitor program PAGE 66 05 01 97 REV H ...
Page 78: ...Section 13 Glossary PAGE 68 05 01 97 REV H ...
Page 80: ...Section 14 Abbreviations and initialisms PAGE 70 05 01 97 REV H ...
Page 85: ...Index 05 01 97 REV H PAGE 75 ...