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An ICOM IC-7300 Radio Tuned to the 20 Meter Band. The ICOM IC-7300 is a multimode 6 meter, 4 meter (ITU Region 1 only) and HF base station amateur radio transceiver. [1] The IC-7300 was announced to the public at the Japan Ham Fair in 2015. [2] The radio has 100 watts output on CW, SSB, and FM modulations and 25 watts of output in AM. [3]
Most amateur digital modes are transmitted by inserting audio into the microphone input of a radio and using an analog scheme, such as amplitude modulation (AM), frequency modulation (FM), or single-sideband modulation (SSB). Amateur teleprinting over radio (AMTOR) D-STAR (Digital Data) a high speed (128 kbit/s), data-only mode.
The transceiver can transmit and receive on the HF 10-, 15-, 20-, 40-, 80- and 160-meter bands, [33] and can receive WWV and WWVH on 15 MHz. It can use SSB , FSK and CW on all bands. [ 33 ] The TS-820S' power consumption is 57 watts (with heaters on) when receiving and 292 watts when transmitting.
The Icom IC-V82 is a VHF handheld transceiver with coverage in the two-meter band (144–146 MHz) and a maximum output power of 7 watts. [8] It was manufactured and sold by Icom from 2004 to 2014. [9] [10] [11] Following its discontinuation, Icom issued an advisory warning about counterfeit radios, including the IC-V82.
Radio amateurs are limited to a specific set of frequency bands, the amateur radio bands, allocated throughout the radio spectrum, but within these bands are allowed to transmit on any frequency using a variety of voice, text, image, and data communications modes. This enables communication across a city, region, country, continent, the world ...
Not all Member Unions follow this plan. As an example, the ACMA does not allow Australian Amateurs to use 3.700 MHz to 3.768 MHz and 3.800 MHz to 3.900 MHz, allocating this region to Emergency and Ambulatory services (Allocations can be found conducting a search of the ACMA Radcomms register .
The ICOM IC-7100 is a multimode HF/VHF/UHF mobile amateur radio transceiver. The IC-7100 has support for a wide variety of commonly used amateur radio modes including ICOMs proprietary digital voice mode DSTAR. Additionally the radio offers 100 watts on HF, 50 watts on VHF, and 35 watts on UHF. [1]
QSK operation is a technical challenge: It requires very fast T/R RF switches at the high power and voltage side of the radio transceiver. Such switches must be controlled automatically by the telegraph key, and as such they must be rapid enough to be perceptually undetectable by the telegraph operator.