The Vodafone Datacard is a quad-band card GSM 850/900/1800/1900. The Vodafone USB Modem is Tri-band GSM 900/1800/1900.

The maximum HSDPA speed is 1.4Mbps(with an average of 400-700kbps across all coverage areas), 3G speed is 384Kbps and GPRS is about 57Kbps. The devices will switch seamlessly to GPRS when there is no HSDPA or 3G coverage. See similar questions...

Adam Phones include a 14-day money back guarantee if the device is returned in the same condition as it was sent and in its original packaging. These limits are required by Vodafone to defend against users abusing the tariff. We may ask you to moderate your usage if it exceeds 1GB per month. If you continue to exceed the 3GB fair usage limit, we reserve the right to move you to another price plan and/or charge you for the element of your usage above this limit. See similar questions...

Vodafone automatically place a content control bar on all Data tariffs. We endeavour to remove this prior to delivery. See similar questions...

The Vodafone 3G Datacard requires installation and comes with a CD to install the software onto a MAC or Windows OS. The USB Modem will automatically install all the software and drivers on to a PC when connected. Apple Mac users will need to pre-install software that is supplied on a CD. See similar questions...

Some recently introduced laptops are equipped with the new ???Express Card' slot. There is no card available at the moment for Express Card slots. The USB Modem however will work with all laptops that support USB. See similar questions...

Adam Phones are happy to supply the UK Data Unlimited and Global Data Roam Unlimited for personal users subject to Consumer Credit checks and Direct Debit as a preferred method of payment (discretionary deposits maybe required for roaming), Pay As You Go UK is reserved for Business and corporate users subject to a credit check. See similar questions...

Dual band phones tend to work in the UK and Europe and most of the world (GSM 1800 and GSM 900), whilst in America you need a phone that can take GSM 1900 so most often a Tri band or Quad band phone is the best option. See similar questions...

A tri-band phone operates at three supported frequencies, such as 900/1800/1900 MHz or 850/1800/1900 MHz. A dual-band phone operates at two frequencies, such as 850/1900 MHz or 900/1800 MHz. See similar questions...

The 3G datacard software will need to be installed on the new laptop and the USB modem will work in exactly the same way i.e. the software will automatically install (on Windows machines) when it is plugged in. All usage will be combined on the single invoice. See similar questions...

These terms define the working frequencies of GSM cellular phones on particular networks. There are 3 working frequencies - 900/1800/1900. GSM phones that work on 2 frequencies are called dual band while those that work on 3 frequencies are called tri-band. This facility allows the user to use his/her cell on different networks, and beneficial for international roaming. See similar questions...

You can get a dual band antenna that will cover all 3 modes (analog, digital cellular and digital pcs) or, as mentioned above, focus on where you're having reception problems. First find out what network your phone is actually using in your city by calling your service provider. Just ask if you're in a 800MHz range area or 1900MHz range area. See similar questions...

Feeding any multi-band array often is a challenge. The frequency range varies from 14 MHz to 28 MHz and the source impedance for each band may vary 2:1 in value. A quad is an array of three or more separate antennas, each with an independent feed point and elements occupying electrically different locations in the array. Methods of feeding in the past have been to co-locate all the feed points and using a single coax feed. With an antenna tuner in the line this method can give good results. See similar questions...

Dual band refers to cellular telephones that are able to operate on two different frequency bands, such as GSM 900 and GSM 1900. If a phone has dual band capability, it automatically scans for the strongest signal and switches Networks - even during a call within the same operator's Network. See similar questions...

A Quad-band GSM phone operates on the four internationally designated GSM frequencies- 850, 900, 1800 and 1900 MHz. The capability to seamlessly handover between the four bands offers operators major capacity gains. The 850 frequency is used in North America, Latin America and parts of the Caribbean. See similar questions...

A Tri-band GSM phone operates on the three internationally designated GSM frequencies- 900, 1800 and 1900 MHz. The capability to seamlessly handover between the three bands offers operators major capacity gains. See similar questions...

The Dual Framework which is supported in Solaris 8 and 9 releases consists of two USB frameworks: the USBA 1.0 framework which supports USB 2.0 devices, and the original framework USBA 0.0 of the OS release (which was mainly designed for keyboard and mouse only). USB drivers written under this framework are prefixed by usba10_. There is no dual framework in Solaris 10 or later. USB drivers do not have prefix usba10_ in Solaris 10. See similar questions...

Not supported yet but will be in a future Solaris Express release. Use an Edgeport adapter and a serial modem for now. Check this blog on USB communication device at: http://blogs.sun.com/roller/page/psum?entry=solaris_and_usb_communication_device See similar questions...

The +5V/+12V/+3.3V DC output are protected against the over voltage condition. Maximum value can't be over 6.8V at 5V terminal, 15.6V at 12V and 4.5V at 3.3V. The power supply can be used electronic circuit to limit the output current against exceeding 60% of surge output or protected against excessive delivery since short circuit of any output or over total power at nominal line. Short ciecuit placed on any DC output will shut down all DC outputs and latch Standby power will be auto recovery. See similar questions...