Specifications
Sources: [5] [6]
Frequency range: 380–470 MHz (UHF R1)
Power output: 2.5–5 watts
Antenna: omnidirectional, flexible monopole antenna mounted to radio body with SMA connector. 50Ω characteristic impedance.
Transmission Range: up to 5 miles on flat terrain, 1 mile with obstacles
Channels: 240 channels total, 12.5 or 25 kHz channel bandwidth
Operating modes: Analog voice (unencrypted only), IMBE digital voice (encrypted and unencrypted), digital text messaging
Programming: Windows PC-based Customer Programming Software via RS-232 or USB cable (all models), Front Panel Programming (FPP) (Model III only)
Encryption: Internal Type II COMSEC supporting AES, DES, DVP, ADP algorithms
Encryption key fill: CPS for software-based 40-bit ADP encryption, Key Variable Loader (KVL) for hardware-based algorithms such as AES, DES, etc.
Weight: 11 oz (transceiver only), 19.85 oz with NiCD (Nickel-Cadmium) battery
Dimensions: 6.00" x 2.30" x 1.50" (w/o battery or antenna)
Environmental exposure certifications: MIL-STD-810 C, D, E, F and IP67 ratings.
AN/PRC 77 Radio Set is a manpack, portable VHF FM combat-net radio transceiver manufactured by Associated Industries and used to provide short-range, two-way radiotelephone voice communication. In the Joint Electronics Type Designation System (JETDS), AN/PRC translates to "Army/Navy, Portable, Radio, Communication."
A walkie-talkie, more formally known as a handheld transceiver, HT, or handheld radio, is a hand-held, portable, two-way radio transceiver. Its development during the Second World War has been variously credited to Donald Hings, radio engineer Alfred J. Gross, Henryk Magnuski and engineering teams at Motorola. First used for infantry, similar designs were created for field artillery and tank units, and after the war, walkie-talkies spread to public safety and eventually commercial and jobsite work.
Pirate decryption is the decryption, or decoding, of pay TV or pay radio signals without permission from the original broadcaster. The term "pirate" is used in the sense of copyright infringement. The MPAA and other groups which lobby in favour of intellectual property regulations have labelled such decryption as "signal theft" even though there is no direct tangible loss on the part of the original broadcaster, arguing that losing out on a potential chance to profit from a consumer's subscription fees counts as a loss of actual profit.
The National Security Agency took over responsibility for all US government encryption systems when it was formed in 1952. The technical details of most NSA-approved systems are still classified, but much more about its early systems have become known and its most modern systems share at least some features with commercial products.
The 33-centimeter or 900 MHz band is a portion of the UHF radio spectrum internationally allocated to amateur radio on a secondary basis. It ranges from 902 to 928 MHz and is unique to ITU Region 2 (Americas). It is primarily used for very local communications as opposed to bands lower in frequency. However, very high antennas with high gain have shown 33 centimeters can provide good long-range communications almost equal to systems on lower frequencies such as the 70 centimeter band. The band is also used by industrial, scientific, and medical (ISM) equipment, as well as low-powered unlicensed devices. Amateur stations must accept harmful interference caused by ISM users but may receive protection from unlicensed devices.
The Joint Tactical Radio System (JTRS) aimed to replace existing radios in the American military with a single set of software-defined radios that could have new frequencies and modes (“waveforms”) added via upload, instead of requiring multiple radio types in ground vehicles, and using circuit board swaps in order to upgrade. JTRS has seen cost overruns and full program restructurings, along with cancellation of some parts of the program.
FreeOTFE is a discontinued open source computer program for on-the-fly disk encryption (OTFE). On Microsoft Windows, and Windows Mobile, it can create a virtual drive within a file or partition, to which anything written is automatically encrypted before being stored on a computer's hard or USB drive. It is similar in function to other disk encryption programs including TrueCrypt and Microsoft's BitLocker.
Clansman is the name of a combat net radio system (CNR) used by the British Army from 1976 to 2010.
The AN/PRC-148 Multiband Inter/Intra Team Radio (MBITR) is the most widely fielded handheld multiband, tactical software-defined radio, used by NATO forces around the world. The radio is built by Thales Communications, a subsidiary of the France-based Thales Group. The designation AN/PRC translates to Army/Navy Portable Radio used for two-way communications, according to Joint Electronics Type Designation System (JETDS) guidelines.
ASTRO 25 is a generation of ASTRO digital two-way radio communications by Motorola Solutions. Motorola first introduced digital two-way radio in the U.S. in 1991 under the name ASTRO Digital Solutions.
The AN/PRC-152 Multiband Handheld Radio, is a portable, compact, tactical software-defined combat-net radio manufactured by Harris Corporation. It is compliant without waivers to the Joint Tactical Radio System (JTRS) Software Communications Architecture (SCA). It has received NSA certification for the transmission of Top Secret data.
FASCINATOR is a series of Type 1 encryption modules designed in the late-1980s to be installed in Motorola SECURENET-capable voice radios. These radios were originally built to accept a DES-based encryption module that was not approved by NSA for classified communications. The FASCINATOR modules replaced the DES units and can be used for classified conversations at all levels when used with appropriately classified keys. FASCINATOR operates at 12 kbit/s for encryption and decryption. It is not compatible with DES-based voice systems.
The SCR-300, designated AN/VRC-3 under the Joint Electronics Type Designation System, was a portable radio transceiver used by US Signal Corps in World War II. This backpack-mounted unit was the first radio to be nicknamed a "walkie talkie".
Barrett Communications is a specialist manufacturer and supplier of commercial high frequency (HF), tactical HF and very high frequency (VHF) communications equipment. Its head office for design and manufacturing is located in Perth, Western Australia. Barrett was acquired by Motorola Solutions in 2022.
Digital mobile radio (DMR) is a digital radio standard for voice and data transmission in non-public radio networks. It was created by the European Telecommunications Standards Institute (ETSI), and is designed to be low-cost and easy to use. DMR, along with P25 phase II and NXDN are the main competitor technologies in achieving 6.25 kHz equivalent bandwidth using the proprietary AMBE+2 vocoder. DMR and P25 II both use two-slot TDMA in a 12.5 kHz channel, while NXDN uses discrete 6.25 kHz channels using frequency division and TETRA uses a four-slot TDMA in a 25 kHz channel.
There are various implementations of the Advanced Encryption Standard, also known as Rijndael.
The Motorola Saber portable radio is a product series of Motorola USA, Inc. The Saber is a commercial radio that was developed for the U.S. military sometime around 1989. The Saber is widely recognizable by thin, sleek design compared to other radios at the time. Despite the fact that the Saber was originally marketed to the military, many law enforcement agencies and fire departments realized the benefits of the Saber and Motorola soon had a much larger customer base for the radio than they expected.
The AN/PRC-154Rifleman Radio is a handheld, intra-squad tactical radio used by the U.S. Army. It is intended to be employed be all members of a rifle squad not traditionally equipped with their own radio, thus enabling team and squad leaders to communicate with their subordinates from a distance. The 154 is capable of both voice and data traffic and is compatible with the Nett Warrior device for transmitting text messages, reports, and imagery.
The AN/PRC-163 Multi-channel Handheld Radio, is a dual-channel tactical handheld radio manufactured by L3Harris Technologies, Inc. for the U.S. military, referred to by the U.S. Army as the Leader Radio. It is capable modes such as VHF/UHF Line-of-Sight (VULOS), SINCGARS, Soldier Radio Waveform, Tactical Scalable MANET, P25 as well as the Mobile User Objective System satellite communication mode. The dual channel capability allows a soldier to simultaneously communicate on two separate radio networks. It has received NSA certification for the transmission of Top Secret information with an appropriate encryption key. The PRC-163 is one of the Handheld, Manpack & Small Form Fit (HMS) components of the Integrated Tactical Network family of radios, the U.S. Army's modernization strategy for tactical radios. It is a member of L3Harris' Falcon IV family of tactical radios, and the successor to the Falcon III-family AN/PRC-152 Multiband Handheld Radio.
The Icom IC-V82 is a VHF band handheld transceiver designed for radio amateurs and professionals who require reliable, high-quality communication. Although it's a little outdated,, the IC-V82 stands out for its robustness, ease of use and a number of advanced features such as the ability to convert it, by adding a module, into a digital device, which make it ideal for certain applications requiring voice and/or data encryption.
