FAQs For Tech

UHF (Ultra High Frequency) is the Internation Telecommunications Union's designation for radio frequency identification in the range between 300 MHz and 3 GHz. The UHF frequency range is further allocated for various purposes that vary by geographical location (see the Wikipedia page for UHF for more information on UHF frequency allocations). UHF is used for television broadcasting, cell phones, GPS, Wi-Fi, Bluetooth, and RFID business applications that require longer read ranges than lower frequency bands can provide (think livestock tracking and race timing).  To learn more about…
Control characters are characters that do not representable a printable character but instead serves to initiate a specific action. There are various types of control characters, including printing control characters, data structuring control characters, and transmission control characters—many of which are often used in the prefix or suffix configurations of barcode and RFID scanners. Some applications, such as SerialMagic Gears allow you to append a control character to scan data at the software level.  The table below provides information regarding some of the more common…
Bluetooth LE and Bluetooth SPP are both Bluetooth profiles (sometimes called "pairing modes"). One practical difference between the two aforementioned Bluetooth profiles is the pairing process. Bluetooth SPP typically requires you to pair with the host operating system (through Bluetooth settings), then with the individual application (such as SerialMagic Gears or Cloud-In-Hand Mobile Grid). On the other hand, Bluetooth LE only requires that you pair with the individual application. Unlike Bluetooth SPP (which isn't supported on iOS devices; iPhones and iPads use Apple's…
RFID (Radio-frequency identification) is a term used to refer to technology that uses electromagnetic fields to automatically identify people, livestock, assets, and more. To learn more about RFID, see our article on the topic here.
NFC is an acronym for Near Field Communication. NFC is a fairly recent 'labeling' for a subset of RFID (Radio Frequency Identification) for short-range, wireless protocols. It's most commonly used for close-range applications (hence the "near field"). NFC has some features that distinguish it from other forms of RFID, such as the capacity for bidirectional peer-to-peer communication.  To learn more about NFC, click here.
Bluetooth MFi is Apple's licensing program for hardware and software specific to their iDevices. MFi, or Made for iOS (iPod/iPhone/iPad), in hardware like the Scanfob® 3002i denotes a special Bluetooth connection mode called IAP. IAP is similar to SPP on Android — which allows a peripheral device to connect as a virtual COM port. This capability allows software developers to interface peripherals directly with their apps. Simulating a virtual COM port means that scans are sent faster and more reliably. Simulated COM ports have the additional…
  Barcodes Barcodes have been around for decades. They are versatile with a large variety of uses — especially in retail, manufacturing settings, and in transport and shipping. We’re used to seeing the common barcode printed on packaging at the grocery store or in other retail outlets, like when items are passed over the barcode reader at the checkout counter to ring up a sale. Barcodes not only are valuable at the point of sale but also for managing inventory and raw materials internally so that tracking is done accurately and without error.  Barcodes have become common in…
Barcodes (sometimes called barcode symbologies) are visual representations of data encoded in a machine-readable format that is recognized by the International Organization for Standards (ISO) and GS1. Barcode symbologies — generally speaking — come in two forms: 1D (one-dimensional) and 2D (two-dimensional). 1D barcodes were the first type of barcode to be standardized and consist of white and black spaces of varying widths that depend on the specific symbology's standards. 2D barcodes were later introduced as a solution that could store a considerably larger amount of data than one-…