To date Oceantronics has provided PMRF with three 13 Meter Antenna Systems
located at Makaha Ridge. The first is a stand alone system located about 1500
feet below the telemetry building and is designated KAM 1. The second and third
systems replaced 2 of the GKR-8A located on the ridge and re designated KAM 2
and KAM 3. Efforts of these systems include;
1. Systems Integrator/Supplier overall responsibility Oceantronics
2. Feeds, ESSCO/TCS
3. Reflectors by General Dynamics (RSI)
4. Pedestals by ESSCO and RPM
4. Servo by System Integrators
4. Controller By TCS
5. Down Converters and Multicouplers by Mudel
6. Track Receivers by Microdyne
7. Site work Oceantronics
|
Antenna Configuration |
13- meter diameter
precision solid surface parabolic reflector with prime
focus L/S-Band Autotrack Feed/RF assembly |
|
Tracking Scheme |
L/S-Band – RADSCAN with simultaneous LHCP and RHCP
combined track and data channel outputs. |
|
Operating Frequency Ranges for L/S-Band Tracking and
Data Reception |
1435-1535 MHz, 1750-1850
MHz, 2200-2300 MHz, 2300-2400 MHz |
|
G/T at
20 degrees above unobstructed horizon, clear sky
condition, and 23 degree C ambient temperature and 30 K
sky temperature.
Note:
C-Band RADAR LP filter degrades the G/T performance by
approximately 1.2 to 1.3 dB based on filter insertion
loss of 0.5 dB. |
1435 – 1535 MHz: +20.2 to
+ 20.6 dB/K
1750 - 1850 MHz: +21.6 to
+ 22.1 dB/K
2200 - 2300 MHz: +23.4 to
+ 23.7 dB/K
2300 - 2400 MHz: +23.7 to
+ 24.0 dB/K |
|
Sidelobe Level - All Bands |
£
-20dB down |
|
S-Band
Frequency Conversion Plan
4 Dual
Channel Down Converters supplied
4 Dual
Channel Multicouplers supplied |
Receive Frequencies:1435-1535
MHz, 1750-1850 MHz, 2200-2300 MHz, 2300-2400 MHzData/Track
Channel 1st IF: 215 - 315 MHz |
|
S-Band
Data/Track Channels |
Two –
Simultaneous RHCP and LHCP for polarization data
reception and tracking |
|
S-Band
Data/Track Frequency Conversion Scheme
(Oceantronics furnished Downconverters) |
Block
conversion to 215-315 MHz IF for data channels. |
|
Life
of System
(Major mechanical components) |
> 15
years |
