Scripps Institution of Oceanography HF Radar Installation Info

Tom Cook & Eric TerrillScripps Institution of OceanographyUniversity of California, San Diego

Overview

Antenna to be installed above stairway.

Hardware to be installed inside MCC module.

SIO HF Radar Components

Antenna – active components housed in fiberglass mast (~25 feet ~75lbs). Cable access on side of antenna.

Cables – group of 3 cables, 2 RG58 U and 1 RG 8. Approximately 1 inch diameter (without connectors).

Hardware – Codar Transmitter (2U), Codar Receiver (2U), UPS (2U) and MacMini on rack mounted shelf (2U).

Single Antenna

Antenna Mount

Cables(see attached datasheets)

Cable bundle consists of

1ea/ RG8/U type, 11 AWG stranded (7x19) .108" bare copper conductor, foam polyethylene insulation, bare copper braid shield (97% coverage), PVC jacket.

2 ea/ RG 58 type, 19 AWG solid .037” bare copper conductor, gas-injected foam HDPE insulation, Duofoil (100% coverage) + tinned copper braid shield (90% coverage), polyethylene jacket.

Cable Bundle

Hardware in Electronics Control Room

Component Size (cm) Weight (kg)

Computer Rack

MacMini mounted in 2U rack

9H x 48W x 34D cm 5 kg

Transmitter

2U rack mount

13H x 49W x 53D cm 15 kg

Receiver

2U rack mount

13H x 49W x 53D cm 14 kg

UPS

2U rack mount

TrippLite SU1500RTXL2UA

9H x 44W x 48D cm 20 kg

TRANSMITTER

RECEIVER

COMPUTER

UPS Specs

• TrippLite SU1500RTXL2UA

– Output: Voltage 1500 VA, Watts 1200

– Input: Current at max load: 12A

– Input: 100VAC-120VAC

– Recommended service: 15A 120V

– Battery: 48 VDC

Codar Transmitter Specs

• Input RF Drive Level: 0 dBm

• Output RF Power Level: 100 watts peak, 50 watts average

• Power Requirements: 300 watts; 120 V AC, 50-60 Hz

• Design: (gated FET) modular; solid state

• Operation: Class AB

• Temperature Range (ambient): 0° F (-18° C) to 90°F (32° C)

Codar Receiver Specs

• Maximum In-band Input Level: 0 dBm

• Receiver Channel Impedance: 50 ohm

• Sensitivity (noise level): -166 dBm in 1 Hz BW

• Power Requirements: 100 watts; 120 V AC, 50-60 Hz

• Design: modular, solid state, three-channel

• Operation: I/Q homodyne

• Output: USB digital output; digital data at 4096 16-bit/second per channel

• Temperature Range (ambient): 0° F (-18° C) to 90°F (32° C)

(crude) Setup Cartoon

Antenna

Cables

Computer Rack

Interconnection

Ports on antenna base

RECEIVER

TRANSMITTER

Receiver/Transmitter Connections

ReceiverAntenna 3

TransmitDrive

TransmitControl

Interconnection

• Transmit and Receiver connections to be done by Tom Cook.

• Only necessary to connect cables to antenna.

Network Requirements

Static IP with reasonable bandwidth Incoming and outgoing traffic on

Port 22 (ssh/scp) Port 407 (timbuktu remote desktop) Port 5000 (remote administration) Port 8080 (remote UPS monitoring)