The Cobalt RAQ was a series of low-cost servers based on the Linux operating system, first produced in 1996 by the Cobalt Microserver company. The servers proved very popular with Internet service Providers and smaller businesses and in 2000 Sun Microsystems purchased the company.
The Cobalt RaQ is a series of 1U rack mount server products that were developed by Cobalt Networks, Inc based upon a modified Red Hat Linux Operating System with a proprietary GUI for server management. Original RaQ systems were equipped with MIPS CPUs but later models used AMD K6-2 chips and then eventually Intel Pentium III CPUs for the final models. Th original RAQ1 was fitted with a 150 Mhz MIPS RM5230 CPU, the RAQ 2 with a 250 Mhz MIPS RM5231 CPU, the RAQ 3 with a 300 Mhz AMD K6 3DCPU, the RAQ4 with a 450 Mhz AMD K6-2 CPU, the RAQ XTR with an Intel Pentium IIICPU originally running at 733 or 933 Mhz and later 850 Mhz or 1 Ghz, and the final RAQ550 model was fitted with a 1 Ghz or 1.26 Ghz Intel Pentium III processor.In 2006 Sun decided to end production and support for the RAQ series of servers. Research Cobalt RAQ
The Icom IC-R7000 was a Japanese scanning communications receiver introduced in 1987. The Icom IC-R7000 had a frequency coverage of 25 Mhz to 2 Ghz in FM wide and FM narrow, AM and SSB modes and 99 memory channels. Research Icom IC-R7000
N Type connectors or Type N connectors are a form of high quality, screw-on, RF connector developed during the 1940's as a medium-sized, weatherproof, durable, RF connector that would exhibit consistent impedance - usually 50 ohms - at frequencies up to 11 ghz. The N Type connector was named after Paul Neill of the Bell Laboratories, and are widely used in military radio equipment for connecting aerials to receivers and transmitters. Research N Type
The Dolphin is an Israeli Dolphin Class submarine designed for interdiction and surveillance operations and special missions. She was launched in 1996. The submarine has the capacity to carry up to sixteen surface-to-surface Harpoon missiles or torpedoes launched from ten bow torpedo launch tubes. Four of the tubes are 650 mm diameter which could provide the capability of launching swimmer delivery vehicles (SDVs). With liners the tubes could be used for torpedoes. Six tubes are 533 mm diameter for launching DM2A3 torpedoes. The submarine can also be armed with mines. A wet and dry compartment is installed for deploying underwater swimmers.
The submarines' radar warning receiver is the 4CH(V)2 Timnex electronic support measures system developed by Elbit in Haifa. The Timnex receives, identifies, displays and records the radar signal parameters. The system operates over 2 to 18 GHz frequency bands and the processor operates at rates up to 1 M pulses per second. The Timnex can be integrated into the battle management system. The submarine is powered by three 16V 396 SE 84 diesel engines developing 3.12 MW sustained power. The submarine is equipped with three 750 kW alternators, and a Siemens 2.85 MW sustained power motor. The machinery drives a single shaft. The propulsion system provides a speed of 20 knots dived and a snorting speed of 11 knots. The range of the submarine is 8,000 miles at a surface speed of eight knots and over 400 miles at an economical speed of 8 knots dived. The hull is rated for a diving depth of 350 metres. The endurance of the submarine is 30 days. The submarine is operated by a complement of 30 crew members. The Dolphin is equipped with an Elta surface search radar operating at I-band. The sonar suite includes the CSU 90 hull mounted passive and active search and attackradar. Dolphin is also equipped with the PRS-3 passive ranging sonar. The flank arraysonar providing passive search is the type FAS-3. The submarine also has two Kollmorgen periscopes. Research Dolphin II
HMS Leviathan was a British Majestic Class light fleet aircraft carrier of 14000 tons displacement launched in 1945. HMS Leviathan was powered by four Admiralty 3-drum type boilers providing a top speed of 25 knots. She carried a crew of 1400 and between 39 and 44 aircraft. Armaments comprised four 3-pounder guns and thirty 40 mm anti-aircraft guns. The Leviathan is an Israeli Dolphin Class submarine designed for interdiction and surveillance operations and special missions. She was launched in 1997. The submarine has the capacity to carry up to 16 surface-to-surface Harpoon missiles or torpedoes launched from ten bow torpedo launch tubes. Four of the tubes are 650 mm diameter which could provide the capability of launching swimmer delivery vehicles (SDVs). With liners the tubes could be used for torpedoes. Six tubes are 533 mm diameter for launching DM2A3 torpedoes The submarine can also be armed with mines. A wet and dry compartment is installed for deploying underwater swimmers. The submarines' radar warning receiver is the 4CH(V)2 Timnex electronic support
measures system developed by Elbit in Haifa. The Timnex receives, identifies, displays and records the radar signal parameters. The system operates over 2 to 18 GHz frequency bands and the processor operates at rates up to 1 M pulses per second. The Timnex can be integrated into the battle management system. The submarine is powered by three 16V 396 SE 84 diesel engines developing 3.12 MW sustained power. The submarine is equipped with three 750 kW alternators, and a Siemens 2.85 MW sustained power motor. The machinery drives a single shaft. The propulsion system provides a speed of 20 knots dived and a snorting speed of 11 knots. The range of the submarine is 8,000 miles at a surface speed of eight knots and over 400 miles at an economical speed of 8 knots dived. The hull is rated for a diving depth of 350 metres. The endurance of the submarine is 30 days. The submarine is operated by a complement of 30 crew members.
The Leviathan is equipped with an Elta surface search radar operating at I-band. The sonar suite includes the CSU 90 hull mounted passive and active search and attackradar. Leviathan is also equipped with the PRS-3 passive ranging sonar. The flank arraysonar providing passive search is the type FAS-3. The submarine also has two Kollmorgen periscopes. Research Leviathan
The Tekuma is an Israeli Dolphin Class submarine designed for interdiction and surveillance operations and special missions. She was launched in 1998. The submarine has the capacity to carry up to 16 surface-to-surface Harpoon missiles or torpedoes launched from ten bow torpedo launch tubes. Four of the tubes are 650 mm diameter which could provide the capability of launching swimmer delivery vehicles (SDVs). With liners the tubes could be used for torpedoes. Six tubes are 533 mm diameter for launching DM2A3 torpedoes The submarine can also be armed with mines. A wet and dry compartment is installed for deploying underwater swimmers. The submarines' radar warning receiver is the 4CH(V)2 Timnex electronic support measures system developed by Elbit in Haifa. The Timnex receives, identifies, displays and records the radar signal parameters. The system operates over 2 to 18 GHz frequency bands and the processor operates at rates up to 1 M pulses per second. The Timnex can be integrated into the battle management
system. The submarine is powered by three 16V 396 SE 84 diesel engines developing 3.12 MW sustained power. The submarine is equipped with three 750 kW alternators, and a Siemens 2.85 MW sustained power motor. The machinery drives a single shaft. The propulsion system provides a speed of 20 knots dived and a snorting speed of 11 knots. The range of the submarine is 8,000 miles at a surface speed of eight knots and over 400 miles at an economical speed of 8 knots dived. The hull is rated for a diving depth of 350 metres. The endurance of the submarine is 30 days. The submarine is operated by a complement of 30 crew members. The Tekuma is equipped with an Elta surface search radar operating at I-band. The sonar suite includes the CSU 90 hull mounted passive and active search and attackradar. Tekuma is also equipped with the PRS-3 passive ranging sonar. The flank arraysonar providing passive search is the type FAS-3. The submarine also has two Kollmorgen periscopes. Research Tekuma
The Probert Encyclopaedia was designed, edited and programed by
Matt and Leela Probert
Abbreviations
Research Cobalt RAQ
