All Posts in "Johna Horowitz"

Satellite Communication Overview of the Technologies & the Antenna System

Key Issues

Looking ahead of the 1990s, one could observe a very rapid expansion of the global market in satellite communication into personal communication and new mobile satellite services, such as Personal Conversation System (PCS) and Mobile Satellite Services (MSS) respectively, Low Earth Orbit (LEO) satellite systems, Global Positioning System (GPS) navigation, and new direct broadcast satellite services. LEO satellite services were introduced towards the end of the 1990s, and the growth depended on competitive factors. The conventional Fixed Satellite Services (FSS) and Maritime Mobile Satellite Services (MMSS) grew steadily but not as before.

Optical fiber cables, now forming a greater part of this conversation revolution throughout the world, severely challenged the fixed satellite services. Very high data rates, similar to High Dynamic Range (HDR) graphics, which require greater than 155Mb per second of data transfer, which required excellent signal conditioning, were being carried by the fiber optics cables.

Fiber optic cables have a better performance than satellites, having much less time delay in transmission. It was a time when satellite services needed to prove their advantage on HDR applications and networking, having more modest data rates, for example, T1=1.5Mb per second. A T-1 line consists of 24 individual channels, each of which supports up-to 64Kbits per second data rate.

The advantages include wide-area coverage, distance insensitivity, flexibility, multiple access and destination capabilities, and economy. Although much on the HDR traffic, such as multi-channel telephone trunks, from satellites to cables, will be transmitted through fiber optics cables, new opportunities opened up for HDR satellites to carry HDTV picture signal distribution, and also support the emerging field of Distributed High-Performance Computing (DHPC). To gain access to this application market, HDR satellites needed to be developed and deployed commercially.

Satellite Communication Systems

A brief discussion, relating to the assessment of satellite communication … Read the rest

Johna Horowitz by — January 16, 2021 in Hd Tv Antenna
Satellite Communication Components for Communication Satellites

The simple application of any communication satellite, no matter whether it is low earth orbital or geosynchronous, includes the transmission of facts from an originating Earth station towards the satellite concerned, which can be termed as “up-linking,” followed by re-transmission from the same info towards the designated Earth station. This re-transmission is termed “down-linking.” The downlink on the details may be to one particular unique Earth station or broadcasted over a chosen number of Earth stations, situated at a bigger region.

To perform this up-linking and down-linking, the satellite features a receiver and also a acquire antenna, a transmitter, and also a transmit antenna, just like a set of a walkie-talkie, which includes a receiver in addition to a transmitter with an antenna, even though is right here, the “receive” and “transmit” is carried out through the same antenna. Satellites will need antennas separately for their two functions of acquiring and transmit. On top of that, the satellite has electronic switches.

This can be utilized to logically switch the uplink signals, down-linking it towards the suitable Earth stations. It has an electronic black-box to ascertain the destination or destinations from the signals getting down-linked to the Earth Stations. There’s that ever vital electrical energy within a satellite necessary in maintaining alive the electronic circuitry. The exact component structure of a satellite may well differ from one towards the other, based on its actual application, but the standard element requirements remain the same.

The electrical power needed by satellites for receiving and transmitting signals tremendously depends upon its orbital path, that is, irrespective of whether it can be a low Earth or geosynchronous orbital satellite. Electrical power requirements mainly depend upon the height of the satellite above the Earth. The higher it can be, a satellite would want that considerable energy … Read the rest

Johna Horowitz by — January 9, 2021 in Satellite Dish
Satellite Phone Rentals Near You

Many of the satellite phones are bigger than the mobile phones that you simply see these days and heavier as well. It is additional pricey to get when compared with your mobile handset. Within the event you locate oneself inside a predicament where you need the guarantee of connectivity, where the other options do not exist or are scarce, a satellite phone becomes an invaluable means to meet your general communication specifications and possibly a lifesaver at the same time. In such circumstances, you might take into account renting a satellite phone, which can be inexpensive and becomes an important and essential asset in your journey to the middle of no-where.

As quickly as your Iridium phone is activated, the closest satellite will detect your phone and figure out when the phone belongs to that group of satellites and will also verify your user’s account for its registration and validity. The satellite also determines the position of one’s phone. On creating a get in touch with, the telephone communicates together with the closest satellite straight. This is then transferred from satellite to satellite, till it reaches the concerned satellite that will then re-transmit the details towards the preferred Earth Station. Your Iridium phone connects you to a landline infrastructure anyplace in the world.

The Functions Of Your Iridium Service Includes –

  • Voice, fax, email, and information communication to and from any place in the world.
  • A roaming phone that you could take with you anywhere you wish.
  • 1 telephone one number anywhere you go.
  • Quick connectivity.
  • One easy bill for the entire account, in 1 currency.
  • It is possible to have selections of post-paid or pre-paid connections.
  • Economical call charges with a single basic charge fixed to contact PSTN lines.
  • Incoming calls are free of charge.
  • Uncomplicated to work with.
… Read the rest
Johna Horowitz by — December 17, 2020 in Phone Rental Services
Know More About Satellite Phones

Using the improvement of terrorist attacks, and probable crippling of the mobile networks, individuals attending conventions have found the viability of renting satellite phones, locating the only real way to connect anywhere with any person at any time. If you’re a wild daily life photographer, heading for main shoots inside the deepest jungles, where the will need to communication will become complicated, the satellite telephone is going to be of considerable use in times of the will need to communicate. Satellite phones are largely useful in places without any terrestrial infrastructure or in places exactly where the infrastructure is not usable, for instance, hurricane inflicted locations, flood-impacted areas, and so on.

Currently, top industries such as Iridium, Globalstar & Thuraya are providing satellite phone solutions, with each of them offering its unique benefits and advantages. There are various options for you to choose from, using the best telephone choice depending upon your application and destination, remembering that a satellite phone does not always offer global coverage or translates into a world phone. You may visit the various websites which list the types of phones available from different companies, highlighting the features with coverage area and rates. It is recommended that you review the facts and figures before contemplating on taking up this sort of satellite phone.

Satellite phones made their debut in the 1990s with a good deal of fanfare. While commercial applications of these phones did not commence in earnest till about 3 to 4 years back, the satellite telephone companies went through a great deal of rough weather, failing financially and technically. Some problems do exist even nowadays when a satellite operator’s network fails. There could be other reasons as well.

Iridium satellite boasts of over 100,000 subscribers with its 66 satellites and is supposed to be just … Read the rest

Johna Horowitz by — December 13, 2020 in Phone Plans
The Benefits And Drawbacks Of Satellite Net Service

Possibly you live inside a rural location and also you can not get cable or DSL high-speed Internet access, but you can get satellite. Or, perhaps that you are at your wit’s finish with the cable and/or phone (DSL) companies and never desire to give either of them a further dime. The satellite can be the answer, but you will do a bit of study before determining if it’s going to match your desires. Here are answers to lots of the most typical queries with regards to satellite service.

Q: How Rapid Is Satellite Access?

A: Satellite providers usually supply several levels of service with download speeds ranging between 700 Kbps and 1.5 Mbps and upload speeds as higher as 256 Kbps. Note, although, that they are optimal speeds. Typical speeds, especially during peak instances, could be somewhat slower.

Q: How Much Does The Satellite Access Price?

A: The price will depend on your provider and the service strategy which you acquire. As a generalization, prices range from roughly $60 a month for service delivering roughly 700 Kbps download speed to about $80 a month for service inside the 1.5 Mbps range. Also, your gear costs are often as much as $300 or $400 and installation can price a further $200, even though vendors normally have particular gives for gear and installation.

Q: What Effect Can Weather Have On Satellite Access?

A: As would be the case with satellite television, extreme rain or snow can slow or stop Satellite World wide web access. That is true both for the bad climate in your location as well as the undesirable climate in the location in the satellite provider’s network operations center (NOC). Nonetheless, even though serious weather can break the connection, satellite systems typically operate even in robust, steady downpours.

Q:

… Read the rest
Johna Horowitz by — November 30, 2020 in Satelite Internet