| AS-1735/SRC |
|
| Physical
Dimensions |
|
| Height |
27
inches |
| Width |
29
- 1/2 inches |
| Depth |
29
- 1/2 inches |
| Weight |
31
lbs (less adaptors) |
| Operating
Temperature |
-32
C to +65 C |
|
|
| Frequency
Range |
225
to 400 MHz |
| Input
Impedance |
50
ohms |
| VSWR |
>
1.8:1 over freq range |
| Polarization |
Vertical |
| RF
Power Rating |
1
kilowatt |
| Power
Requirement |
None |
| Feed
Type |
Unbalanced,
coaxial cable |
| Input
Connector |
Type
LC, UG-352/U |
|
|
Description:
The AS-1735/SRC antenna consists of four broadband radiating
elements mounted equidistant from the central mast and
equally spaced from each other. The individual antennas are
fed in-phase to furnish omnidirectional coverage over the
frequency bandwidth of the antenna. The aluminum framework
supporting the radiating elements contain integral
coaxialline matching transformers and feedlines. This
framework also serves to ground the radiators to the mast,
to provide a balun feed system and to form isolation traps
which limit current flow in the mast. Effective
interconnection of each radiating element to provide proper
impedance match to the transmission line is accomplished by
first combining two elements of a pair and combining the two
pairs into a single input. The antenna and mounting
hardware are manufactured of aluminum.
Installation: The antenna is secured to the
support mast by mounting flanges and adaptors. Adaptors are
supplied to accommodate mast diameters to 12 inches. A
special yoke is required for mast diameters to 15 inches.
Considerations: The antenna should be mounted
as high as possible on the mast to provide maximum
unobstructed coverage within the physical constraints of the
ship. Care should be exercised to eliminate fouling of the
antenna by flag halyards and ships rigging. Caution signs
should be provided to indicate antenna is not to be used as
a support by personnel working on the mast. |
