Rain Squall Comparison of Furuno Marine X-Band Radar vs. Furuno Marine S-Band Radar. S-Band doesn't reflect off of the rain hence, S-Band can see targets inside rain! X-Band, commonly called a weather radar, reflects off the rain but, cannot see targets inside the rain squall.



Doppler radar can be divided into several different categories according to the wavelength of the radar. The different bands are L,S,C,X,K. The names of the radars originate from the days of WWII.

L band radars operate on a wavelength of 15-30 cm and a frequency of 1-2 GHz. L band radars are mostly used for clear air turbulence studies.

S band radars operate on a wavelength of 8-15 cm and a frequency of 2-4 GHz. Because of the wavelength and frequency, S band radars are not easily attenuated. This makes them useful for near and far range weather observation. The National Weather Service (NWS) uses S band radars on a wavelength of just over 10 cm. The drawback to this band of radar is that it requires a large antenna dish and a large motor to power it. It is not uncommon for a S band dish to exceed 25 feet in size.

C band radars operate on a wavelength of 4-8 cm and a frequency of 4-8 GHz. Because of the wavelength and frequency, the dish size does not need to be very large. This makes C band radars affordable for TV stations. The signal is more easily attenuated, so this type of radar is best used for short range weather observation. The frequency allows C band radars to create a smaller beam width using a smaller dish.
C band radars also do not require as much power as an S band radar. The NWS transmits at 750,000 watts of power for their S band, where as a private TV station such as KCCI-TV in Des Moines only broadcasts at 270,000 watts of power with their C band radar.

X band radars operate on a wavelength of 2.5-4 cm and a frequency of 8-12 GHz. Because of the smaller wavelength, the X band radar is more sensitive and can detect smaller particles. These radars are used for studies on cloud development because they can detect the tiny water particles and also used to detect light precipitation such as snow. X band radars also attenuate very easily, so they are used for only very short range weather observation. Also, due to the small size of the radar, it can therefore be portable like the Doppler on Wheels. (DOW) Most major airplanes are equipped with an X band radar to pick up turbulence and other weather phenomenon. This band is also shared with some police speed radars and some space radars.

K band radars operate on a wavelength of .75-1.2 cm or 1.7-2.5 cm and a corresponding frequency of 27-40 GHz and 12-18 GHz. This band is split down the middle due to a strong absorption line in water vapor. This band is similar to the X band but is just more sensitive. This band also shares space with police radars.

S$2199.00 jer...

Embrace the new generation of racing with your very own Personal Driving Simulator.

The VisionRacer VR3 will provide you, your family and friends with hours of competitive fun.
Build your own VisionRacer and enter a new world of motor sport. Race the world from the comfort of your own home without the cost associated with conventional motor sport.

This bundle consists of the following:

• VisionRacer 3 Rig
• VisionRacer 3 Gear Shifter Mount
• VisionRacer 3 LCD TV/Monitor Stand

To complete the VisionRacer 3 experience, you will require the following additions as well which can be purchased at GameShop.

• Logitech G25 Steering Wheel
• Logitech X540 Speaker System
• PlayStation 3 console
• Racing game for PlayStation 3 (e.g. Gran Turismo 5, Need for Speed)
• Full HD LCD TV/Monitor with HDMI connector (recommended 24" wide for optimal game play)

Features

• Solid stainless steel construction
• Mirror polished finish with carbon fiber accents
• Exclusive ‘Limited Edition’ serial number
• Ergonomically correct driving position
• Angled pedal mount
• Comfortable fibreglass bucket seat
• Adjustable seating position
• Non slip rubber feet
• Subtle cabling ducts
• Assembly instructions
• VisionRacer tool kit
• Suitable for ages 8+

The Suez Canal is an artificial sea-level waterway in Egypt, connecting the Mediterranean Sea and the Red Sea. Opened in November 1869, it allows water transportation between Europe and Asia without navigating around Africa. The northern terminus is Port Said, and the southern terminus is Port Tawfik at the city of Suez.

The canal is 192 km (119 mi) long with Ismailia, on the west bank, 3 km (1.9 mi) north of the half-way point^[1]. It consists of the northern access channel of 19.5 km/12.1 mi, the canal itself of 162.25 km/100.82 mi and of the southern access channel of 8.5 km/5.3 mi.^[2] It is single-lane with passing places in Ballah By-Pass and in the Great Bitter Lake^[3]. It contains no locks; seawater flows freely through the canal into the Great Bitter Lake from both the Mediterranean Sea in the north and the Red Sea in the south, replacing evaporation.^[4]

The canal is owned and maintained by the Suez Canal Authority^[5] (SCA) of the Arab Republic of Egypt.

The canal may be used in time of war as in time of peace, by every vessel of commerce or of war, without distinction of flag.^[6]

The Panama Canal is a ship canal which joins the Caribbean Sea to the Pacific ocean. One of the largest and most difficult engineering projects ever undertaken, it had an enormous impact on shipping between the two oceans, replacing the long and treacherous route via the Drake Passage and Cape Horn at the southernmost tip of South America. A ship sailing from New York to San Francisco via the canal travels 9,500 km (6,000 mi), well under half the 22,500 km (14,000 mi) route around Cape Horn.^[1] Although the concept of a canal near Panama dates back to the early 16th century, the first attempt to construct a canal began in 1880 under French leadership. After this attempt failed and 21,900 workers died, the project of building a canal was attempted and completed by the United States in the early 1900s, with the canal opening in 1914. The building of the 77 km (48 mi) canal was plagued by problems, including disease (particularly malaria and yellow fever) and landslides. By the time the canal was completed, a total of 27,500 workmen are estimated to have died in the French and American efforts.

Since opening, the canal has been enormously successful, and continues to be a key conduit for international maritime trade. The canal can accommodate vessels from small private yachts up to large commercial vessels. The maximum size of vessel that can use the canal is known as Panamax; an increasing number of modern ships exceed this limit, and are known as post-Panamax or super-Panamax vessels. A typical passage through the canal by a cargo ship takes approximately 8–10 hours. In fiscal year 2008, 14,702 vessels passed through the waterway with a total 309.6 million Panama Canal/Universal Measurement System (PC/UMS) tons.

While the Pacific Ocean is west of the isthmus and the Atlantic to the east, the journey through the canal from the Pacific to the Atlantic is one from southeast to northwest. This is a result of the isthmus's "curving back on itself" in the region of the canal. The Bridge of the Americas at the Pacific end is about a third of a degree of longitude east of the end near Colon on the Atlantic.^[2]

A husband wrote the following letter for his wife and left it on the dining room table:

'To My Dear Wife.
You will surely understand that I have certain needs that you, being 54 years old, can no longer satisfy. I am very happy with you and I value you as a good wife. Therefore, after reading this letter, I hope that you will not wrongly interpret the fact that I will be spending the evening with my 18 year old secretary at the Comfort Inn Hotel. Please don't be upset - I shall be home before midnight.'

When the man came home late that night, he found the following letter on the dining room table:


'My Dear Husband.
I received your letter and thank you for your honesty about my being 54 years old. I would like to take this opportunity to remind you that you are also 54 years old. As you know, I am a math teacher at our local college. I would like to inform you that while you read this, I will be at the Marriot Hotel with Michael, one of my students. He is young, virile, and like your secretary, is 18 years old You as a successful businessman who has an excellent knowledge of Math, you will understand that although it may appear that we are in the same situation, there is one mathematical difference:

'18 goes into 54 a lot more times than 54 goes into 18.



'Therefore, I will not be home until sometime tomorrow'

Salam...

Aku baru perasan, banyak company & brand kat dunia nie ada kene mengena dengan "something"...

Company Marine/Oil & Gas:

1. Sapura Holdings - Nama isteri Tan Sri Shamsudin (owner Sapura)
2. Vega Industries Limited - Vega, is the brightest star in the constellation Lyra
3. Sabik - Sabik is a star in the constellation Ophiuchus.
4. Pharos Marine Automatic Power - The Lighthouse of Alexandria (or The Pharos of Alexandria)
5. Kongsberg - nama bandar kat Norway
6. Polaris Electronics AS - nama bintang

Software:

1. ICAN Aldebaran II
2. ICAN Regulus II

Brand Kereta:

1. Toyota Alphard - Alphard is an orange giant star. The name Alphard is from the Arabic الفرد (al-fard), "the solitary one", there being no other bright stars near it.


Nama kapal Jabatan Laut Malaysia (Catamaran):

1. Aldebaran
2. Al-Tair
3. Al-Nilam