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If you'd like to print the System Specifications, please click here for a printable PDF (96k) Go to Adobe to download Adobe Acrobat Reader if you cannot view this file.   Radiated Signal Specifications Operators must adhere to their country’s radio communications regulations regarding radiated signal specifications, and receive proper authorizations prior to operation. Consult company. Output Radiated Power: 80 watts peak, 40 watts average Operating Frequency Range: One of either: Low Band 11.5 - 14.0 MHz or Mid Band 24 - 27 MHz Modulation Format: Pulsed Swept Frequency CW Pulse Repetition Frequency: 1028 - 8197 Hz Duty Factor: 50% Sweep Width: 50 - 150 kHz (typical) Sweep Repetition Frequency: 2 Hz Total Radiated Signal Bandwidth: (at - 20 dB level) 65 - 200 kHz Polarization: vertical Transmit Antenna: SSTA 100 Vertical Fiberglass Whip RF Connection: (to Transmitter): Low-loss Co-Ax; Type N connectors Whip Height/Radial Element Lengths: for 11.5-14 MHz version: 4.8 m / 2.4 m Whip Height/Radial Element Lengths: for 24-27 MHz version: 2.4m / 1.2 m Weight: 5 kg SSTA 100 Vertical Fiberglass Whip Transmit Antenna designed for mounting on Antenna Support Post: Height 4m, diameter ~6.5 cm click image to enlarge SSTA 100 Receive Antenna: SSRA 100 Design: (three element DF) passive vertical monopole, two crossed loops into preamplifiers RF Connections: (to Receiver) Co-Ax; BNC and TNC end connectors Whip Height/Radial Element Lengths: for 11.5-14 MHz version: 2.4 m / 2.4 m Whip Height/Radial Element Lengths: for 24-27 MHz version: 2.4 m / 1.2 m Dimensions: (of weatherproof RF box) 13H x 25W x 25D cm Weight: 4.5 kg SSRA 100 Receive Antenna designed for mounting on Antenna Support Post: Height 4m, diameter ~6.5 cm SSRA 100 Transmitter: SSTX 100 Input RF Drive Level: 0 dBm Output RF Power Level: 100 watts peak, 50 watts average Required Power: 50-60 Hz, 300 watts; select one of either 120 VAC or 220 VAC (specify when ordering) [New 24-volt DC version is available. Consult factory prior to ordering.] Design: (gated FET) modular; all solid state Operation: Class AB Dimensions: (single chassis) 13H x 49W x 53D cm Weight: 15 kg Receiver: SSRX 100A Maximum In-band Input Level: 0 dBm Impedance: 50 ohm Sensitivity: (noise level) -160 dBm in 1 Hz BW Required Power: 50-60 Hz, 100 watts; select one of either 120 VAC or 220 VAC (specify when ordering) [New 24-volt DC version is available. Consult factory prior to ordering.] Design: modular, all solid state, three-channel Operation: I/Q homodyne Output: digital data at 4096 16-bit words/second per channel Dimensions: (single chassis) 13H x 49W x 53D cm Weight: 14 kg [ Optional GPS synchronization Feature: GPS Assisted Stability: >.0001 ppm and 50 nsec on PPS ] Radial-Site Data Acquisition System: SSDA 100 Computer: Desktop computer, Power Macintosh® G5 (Power PC 1.8 GHz) 256 MB RAM; 80 GB H.D. Laptop computer available; specify when ordering. Internal Modem (for dial-up only, not leased-line operation): up to 28,800 BPS Monitor: color TFT Keyboard: USB, extended Software: One Radial Site Suite license SSDA 100   SSTX 100(top) SSRX 100A(bottom) Combine Station Data Processing System: SSDP 100 Computer: Desktop computer, Power Macintosh® G5 (Power PC 1.8 GHz) 256 MB RAM; 80 GB H.D. Laptop computer available; specify when ordering. Internal Modem (for dial-up only, not leased-line operation) up to 28,800 BPS Monitor: 17" color TFT Keyboard: USB, extended Software: One central station software license SSDP 100 Complete 2-Site SeaSonde Monitoring System Consists of*: 2 - SSTX 100 Transmitters 2 - SSRX 100A Receivers 2 - SSTA 100 Transmit Antennas Either: 2 - SSRA-L 100 Low-Band Receive Antennas Or: 2 - SSRA-M 100 Mid-Band Receive Antennas 2 - SSDA 100 Data Acquisition Systems 1 - SSDP 100 Data Processing System Software & Licenses: All SeaSonde Software listed below Output Data Product Specifications Surface Currents: Maps of surface current vectors created from data taken at two radar sites 10-40 km apart Map Displays: color monitor screen, archived ASCII vector files Map Spatial Resolution: (vectors on square grid) 2 x 2 km typical spacing Map Area Coverage: Mid Band (24-27 MHz) 20-50 km alongshore x 20-35 km offshore. Coverage varies. Depends on radar siting; external noise/interference; sea state. Map Temporal Interval: hourly; currents averaged over one hour Map Vector Accuracies: (rms; typical for normal environmental speed: < 7 cm/s conditions, i.e., noise/interference, siting, sea state), direction: < 10° Wavefield Products: Local on-shore wave conditions in ring centered 3 km from coast around each radar. (Low band is best for wave data). Significant Waveheight: typical accuracy: 7-15% Dominant On-Shore Direction: typical accuracy: 5°-12° Dominant Wave Period: typical accuracy: 0.6 s Waveheight Energy vs Frequency: ~0.01 Hz spacing Dominant Wave Direction vs Frequency: ~0.01 Hz spacing Spectral Wave Frequency Range: 0.05 Hz - 0.25 Hz (20 s to 4 s periods) Minimum Detectable Significant Waveheight: 1 m Data Temporal Interval: hourly; waves averaged over one hour Wave History Displays: hourly waveheight vs time, hourly wave direction vs time, hourly wave period vs time. Note: Strong alongshore currents can limit spectral resolution and mask long-period waves. Wave information not obtainable if current speed >70 cm/s or when external noise/interference levels are higher than normal. Note: Wave and wind outputs are available and may be suitable for some installations. For more information on these data products, contact a CODAR technical representative. Data Communication: Automatic modem transfer of current and wave data products supported by software for dial-up lines and ethernet connections (recommended). SeaSonde software and hardware support a variety of communication protocols. For more information on Communication Protocols, please click here for a printable PDF (40K) SeaSonde® Software Specifications Radial Site Software Suite Program Name… Function… Output   Sentinel… orchestrates control of all operations… logs data events SeaSonde Acquisition … radar data acquisition/processing… unaveraged cross spectra CSRAvnn… averages data over one hour… averaged cross spectra WaitForCSA… detects arrival of averages… triggers hourly processing Currents… calculates radial surface current map… writes file radial.dat Waves… inverts echo to get wave information… wave spectral parameters Archivist… archives data according to user selections… archived data MacController… housekeeping functions, data transfers upon request Combine Station Software Suite Program Name… Function… Output MacCentral… retrieves hourly files from remote sites… radial current/wave data WaitForRadials… detects arrival of radial files… triggers total vector processing Combine… calculates total currents… total current vectors at map grid SeaDisplay… prepare current map… current map for monitor or printer WaveDisplay… prepare wave data displays… wave data plots *These specifications are for the basic software for typical real-time operational use. Many more applications are included with the SeaSonde® for offline use. *Specification and component details are subject to change. This document last updated September 2004.

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