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Among the product lines are the "TS" series of HF transceivers which cover the HF ("high frequency") bands, from 1.8 to 50 MHz. These transceivers include the TS-820S, the TS-590S, the TS-850S, the TS-430S. Kenwood TS-520 transceiver.
Kenwood has offered lines of HF, VHF / UHF, and portable amateur radio models, including some with built-in digital data modes ( Automatic Packet Reporting System, built on AX.25 packet radio) and modems needed to send and receive these protocols.
Like other land mobile systems, NXDN systems use the VHF and UHF frequency bands. It is also used as a niche mode in amateur radio . NXDN is implemented by Icom in their IDAS system [1] and by Kenwood as NEXEDGE; [2] both Kenwood and Icom now offer dual-standard equipment which supports the European dPMR standard.
Specifications. Specifications of the ICOM IC-7300 are: [3] Frequency range: Tx: 1.8 – 54 MHz ( amateur bands only) Rx: 30 kHz – 74.80 MHz. Modes of emission: A1A (CW), A3E (AM), J3E (LSB, USB), F3E (FM) Impedance: SO-239 50 Ohms, unbalanced. Supply voltage: 13.8 VDC. Current consumption: Rx: 1.25 A Tx: 21 A.
D-STAR. ICOM IC-91AD handheld transceiver with the D-STAR UT-121 digital voice board installed. D-STAR ( Digital Smart Technologies for Amateur Radio) is a digital voice and data protocol specification for amateur radio. The system was developed in the late 1990s by the Japan Amateur Radio League and uses minimum-shift keying in its packet ...
Amateurs use a variety of voice, text, image, and data communications modes over radio. Generally new modes can be tested in the amateur radio service, although national regulations may require disclosure of a new mode to permit radio licensing authorities to monitor the transmissions.
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). [1] It is primarily used for very local communications as opposed to bands lower in frequency.
Amateur radio operator. NASA astronaut Col. Doug Wheelock, KF5BOC, Expedition 24 flight engineer, operates the NA1SS ham radio station in the Zvezda Service Module of the International Space Station. Equipment is a Kenwood TM-D700E transceiver.
A trunked radio system is a two-way radio system that uses a control channel to automatically assign frequency channels to groups of user radios. In a traditional half-duplex land mobile radio system a group of users (a talkgroup) with mobile and portable two-way radios communicate over a single shared radio channel, with one user at a time talking. These systems typically have access to ...
Amateur radio, also known as ham radio, is the use of the radio frequency spectrum for purposes of non-commercial exchange of messages, wireless experimentation, self-training, private recreation, radiosport, contesting, and emergency communications. [1] The term "amateur" is used to specify "a duly authorized person interested in radioelectric ...